diff options
author | zsxwing <zsxwing@gmail.com> | 2015-06-30 17:39:55 -0700 |
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committer | Reynold Xin <rxin@databricks.com> | 2015-06-30 17:39:55 -0700 |
commit | 3bee0f1466ddd69f26e95297b5e0d2398b6c6268 (patch) | |
tree | 83309df1a139a49f1821e54344d551581b210cf8 /core/src | |
parent | ccdb05222a223187199183fd48e3a3313d536965 (diff) | |
download | spark-3bee0f1466ddd69f26e95297b5e0d2398b6c6268.tar.gz spark-3bee0f1466ddd69f26e95297b5e0d2398b6c6268.tar.bz2 spark-3bee0f1466ddd69f26e95297b5e0d2398b6c6268.zip |
[SPARK-6602][Core] Update Master, Worker, Client, AppClient and related classes to use RpcEndpoint
This PR updates the rest Actors in core to RpcEndpoint.
Because there is no `ActorSelection` in RpcEnv, I changes the logic of `registerWithMaster` in Worker and AppClient to avoid blocking the message loop. These changes need to be reviewed carefully.
Author: zsxwing <zsxwing@gmail.com>
Closes #5392 from zsxwing/rpc-rewrite-part3 and squashes the following commits:
2de7bed [zsxwing] Merge branch 'master' into rpc-rewrite-part3
f12d943 [zsxwing] Address comments
9137b82 [zsxwing] Fix the code style
e734c71 [zsxwing] Merge branch 'master' into rpc-rewrite-part3
2d24fb5 [zsxwing] Fix the code style
5a82374 [zsxwing] Merge branch 'master' into rpc-rewrite-part3
fa47110 [zsxwing] Merge branch 'master' into rpc-rewrite-part3
72304f0 [zsxwing] Update the error strategy for AkkaRpcEnv
e56cb16 [zsxwing] Always send failure back to the sender
a7b86e6 [zsxwing] Use JFuture for java.util.concurrent.Future
aa34b9b [zsxwing] Fix the code style
bd541e7 [zsxwing] Merge branch 'master' into rpc-rewrite-part3
25a84d8 [zsxwing] Use ThreadUtils
060ff31 [zsxwing] Merge branch 'master' into rpc-rewrite-part3
dbfc916 [zsxwing] Improve the docs and comments
837927e [zsxwing] Merge branch 'master' into rpc-rewrite-part3
5c27f97 [zsxwing] Merge branch 'master' into rpc-rewrite-part3
fadbb9e [zsxwing] Fix the code style
6637e3c [zsxwing] Merge remote-tracking branch 'origin/master' into rpc-rewrite-part3
7fdee0e [zsxwing] Fix the return type to ExecutorService and ScheduledExecutorService
e8ad0a5 [zsxwing] Fix the code style
6b2a104 [zsxwing] Log error and use SparkExitCode.UNCAUGHT_EXCEPTION exit code
fbf3194 [zsxwing] Add Utils.newDaemonSingleThreadExecutor and newDaemonSingleThreadScheduledExecutor
b776817 [zsxwing] Update Master, Worker, Client, AppClient and related classes to use RpcEndpoint
Diffstat (limited to 'core/src')
27 files changed, 806 insertions, 633 deletions
diff --git a/core/src/main/scala/org/apache/spark/deploy/Client.scala b/core/src/main/scala/org/apache/spark/deploy/Client.scala index 848b62f9de..71f7e21291 100644 --- a/core/src/main/scala/org/apache/spark/deploy/Client.scala +++ b/core/src/main/scala/org/apache/spark/deploy/Client.scala @@ -18,17 +18,17 @@ package org.apache.spark.deploy import scala.collection.mutable.HashSet -import scala.concurrent._ +import scala.concurrent.ExecutionContext +import scala.reflect.ClassTag +import scala.util.{Failure, Success} -import akka.actor._ -import akka.pattern.ask -import akka.remote.{AssociationErrorEvent, DisassociatedEvent, RemotingLifecycleEvent} import org.apache.log4j.{Level, Logger} +import org.apache.spark.rpc.{RpcEndpointRef, RpcAddress, RpcEnv, ThreadSafeRpcEndpoint} import org.apache.spark.{Logging, SecurityManager, SparkConf} import org.apache.spark.deploy.DeployMessages._ import org.apache.spark.deploy.master.{DriverState, Master} -import org.apache.spark.util.{ActorLogReceive, AkkaUtils, RpcUtils, Utils} +import org.apache.spark.util.{ThreadUtils, SparkExitCode, Utils} /** * Proxy that relays messages to the driver. @@ -36,20 +36,30 @@ import org.apache.spark.util.{ActorLogReceive, AkkaUtils, RpcUtils, Utils} * We currently don't support retry if submission fails. In HA mode, client will submit request to * all masters and see which one could handle it. */ -private class ClientActor(driverArgs: ClientArguments, conf: SparkConf) - extends Actor with ActorLogReceive with Logging { - - private val masterActors = driverArgs.masters.map { m => - context.actorSelection(Master.toAkkaUrl(m, AkkaUtils.protocol(context.system))) - } - private val lostMasters = new HashSet[Address] - private var activeMasterActor: ActorSelection = null - - val timeout = RpcUtils.askTimeout(conf) - - override def preStart(): Unit = { - context.system.eventStream.subscribe(self, classOf[RemotingLifecycleEvent]) - +private class ClientEndpoint( + override val rpcEnv: RpcEnv, + driverArgs: ClientArguments, + masterEndpoints: Seq[RpcEndpointRef], + conf: SparkConf) + extends ThreadSafeRpcEndpoint with Logging { + + // A scheduled executor used to send messages at the specified time. + private val forwardMessageThread = + ThreadUtils.newDaemonSingleThreadScheduledExecutor("client-forward-message") + // Used to provide the implicit parameter of `Future` methods. + private val forwardMessageExecutionContext = + ExecutionContext.fromExecutor(forwardMessageThread, + t => t match { + case ie: InterruptedException => // Exit normally + case e: Throwable => + logError(e.getMessage, e) + System.exit(SparkExitCode.UNCAUGHT_EXCEPTION) + }) + + private val lostMasters = new HashSet[RpcAddress] + private var activeMasterEndpoint: RpcEndpointRef = null + + override def onStart(): Unit = { driverArgs.cmd match { case "launch" => // TODO: We could add an env variable here and intercept it in `sc.addJar` that would @@ -82,29 +92,37 @@ private class ClientActor(driverArgs: ClientArguments, conf: SparkConf) driverArgs.cores, driverArgs.supervise, command) - - // This assumes only one Master is active at a time - for (masterActor <- masterActors) { - masterActor ! RequestSubmitDriver(driverDescription) - } + ayncSendToMasterAndForwardReply[SubmitDriverResponse]( + RequestSubmitDriver(driverDescription)) case "kill" => val driverId = driverArgs.driverId - // This assumes only one Master is active at a time - for (masterActor <- masterActors) { - masterActor ! RequestKillDriver(driverId) - } + ayncSendToMasterAndForwardReply[KillDriverResponse](RequestKillDriver(driverId)) + } + } + + /** + * Send the message to master and forward the reply to self asynchronously. + */ + private def ayncSendToMasterAndForwardReply[T: ClassTag](message: Any): Unit = { + for (masterEndpoint <- masterEndpoints) { + masterEndpoint.ask[T](message).onComplete { + case Success(v) => self.send(v) + case Failure(e) => + logWarning(s"Error sending messages to master $masterEndpoint", e) + }(forwardMessageExecutionContext) } } /* Find out driver status then exit the JVM */ def pollAndReportStatus(driverId: String) { + // Since ClientEndpoint is the only RpcEndpoint in the process, blocking the event loop thread + // is fine. println("... waiting before polling master for driver state") Thread.sleep(5000) println("... polling master for driver state") - val statusFuture = (activeMasterActor ? RequestDriverStatus(driverId))(timeout) - .mapTo[DriverStatusResponse] - val statusResponse = Await.result(statusFuture, timeout) + val statusResponse = + activeMasterEndpoint.askWithRetry[DriverStatusResponse](RequestDriverStatus(driverId)) statusResponse.found match { case false => println(s"ERROR: Cluster master did not recognize $driverId") @@ -127,50 +145,62 @@ private class ClientActor(driverArgs: ClientArguments, conf: SparkConf) } } - override def receiveWithLogging: PartialFunction[Any, Unit] = { + override def receive: PartialFunction[Any, Unit] = { - case SubmitDriverResponse(success, driverId, message) => + case SubmitDriverResponse(master, success, driverId, message) => println(message) if (success) { - activeMasterActor = context.actorSelection(sender.path) + activeMasterEndpoint = master pollAndReportStatus(driverId.get) } else if (!Utils.responseFromBackup(message)) { System.exit(-1) } - case KillDriverResponse(driverId, success, message) => + case KillDriverResponse(master, driverId, success, message) => println(message) if (success) { - activeMasterActor = context.actorSelection(sender.path) + activeMasterEndpoint = master pollAndReportStatus(driverId) } else if (!Utils.responseFromBackup(message)) { System.exit(-1) } + } - case DisassociatedEvent(_, remoteAddress, _) => - if (!lostMasters.contains(remoteAddress)) { - println(s"Error connecting to master $remoteAddress.") - lostMasters += remoteAddress - // Note that this heuristic does not account for the fact that a Master can recover within - // the lifetime of this client. Thus, once a Master is lost it is lost to us forever. This - // is not currently a concern, however, because this client does not retry submissions. - if (lostMasters.size >= masterActors.size) { - println("No master is available, exiting.") - System.exit(-1) - } + override def onDisconnected(remoteAddress: RpcAddress): Unit = { + if (!lostMasters.contains(remoteAddress)) { + println(s"Error connecting to master $remoteAddress.") + lostMasters += remoteAddress + // Note that this heuristic does not account for the fact that a Master can recover within + // the lifetime of this client. Thus, once a Master is lost it is lost to us forever. This + // is not currently a concern, however, because this client does not retry submissions. + if (lostMasters.size >= masterEndpoints.size) { + println("No master is available, exiting.") + System.exit(-1) } + } + } - case AssociationErrorEvent(cause, _, remoteAddress, _, _) => - if (!lostMasters.contains(remoteAddress)) { - println(s"Error connecting to master ($remoteAddress).") - println(s"Cause was: $cause") - lostMasters += remoteAddress - if (lostMasters.size >= masterActors.size) { - println("No master is available, exiting.") - System.exit(-1) - } + override def onNetworkError(cause: Throwable, remoteAddress: RpcAddress): Unit = { + if (!lostMasters.contains(remoteAddress)) { + println(s"Error connecting to master ($remoteAddress).") + println(s"Cause was: $cause") + lostMasters += remoteAddress + if (lostMasters.size >= masterEndpoints.size) { + println("No master is available, exiting.") + System.exit(-1) } + } + } + + override def onError(cause: Throwable): Unit = { + println(s"Error processing messages, exiting.") + cause.printStackTrace() + System.exit(-1) + } + + override def onStop(): Unit = { + forwardMessageThread.shutdownNow() } } @@ -194,15 +224,13 @@ object Client { conf.set("akka.loglevel", driverArgs.logLevel.toString.replace("WARN", "WARNING")) Logger.getRootLogger.setLevel(driverArgs.logLevel) - val (actorSystem, _) = AkkaUtils.createActorSystem( - "driverClient", Utils.localHostName(), 0, conf, new SecurityManager(conf)) + val rpcEnv = + RpcEnv.create("driverClient", Utils.localHostName(), 0, conf, new SecurityManager(conf)) - // Verify driverArgs.master is a valid url so that we can use it in ClientActor safely - for (m <- driverArgs.masters) { - Master.toAkkaUrl(m, AkkaUtils.protocol(actorSystem)) - } - actorSystem.actorOf(Props(classOf[ClientActor], driverArgs, conf)) + val masterEndpoints = driverArgs.masters.map(RpcAddress.fromSparkURL). + map(rpcEnv.setupEndpointRef(Master.SYSTEM_NAME, _, Master.ENDPOINT_NAME)) + rpcEnv.setupEndpoint("client", new ClientEndpoint(rpcEnv, driverArgs, masterEndpoints, conf)) - actorSystem.awaitTermination() + rpcEnv.awaitTermination() } } diff --git a/core/src/main/scala/org/apache/spark/deploy/DeployMessage.scala b/core/src/main/scala/org/apache/spark/deploy/DeployMessage.scala index 9db6fd1ac4..12727de9b4 100644 --- a/core/src/main/scala/org/apache/spark/deploy/DeployMessage.scala +++ b/core/src/main/scala/org/apache/spark/deploy/DeployMessage.scala @@ -24,11 +24,12 @@ import org.apache.spark.deploy.master.{ApplicationInfo, DriverInfo, WorkerInfo} import org.apache.spark.deploy.master.DriverState.DriverState import org.apache.spark.deploy.master.RecoveryState.MasterState import org.apache.spark.deploy.worker.{DriverRunner, ExecutorRunner} +import org.apache.spark.rpc.RpcEndpointRef import org.apache.spark.util.Utils private[deploy] sealed trait DeployMessage extends Serializable -/** Contains messages sent between Scheduler actor nodes. */ +/** Contains messages sent between Scheduler endpoint nodes. */ private[deploy] object DeployMessages { // Worker to Master @@ -37,6 +38,7 @@ private[deploy] object DeployMessages { id: String, host: String, port: Int, + worker: RpcEndpointRef, cores: Int, memory: Int, webUiPort: Int, @@ -63,11 +65,11 @@ private[deploy] object DeployMessages { case class WorkerSchedulerStateResponse(id: String, executors: List[ExecutorDescription], driverIds: Seq[String]) - case class Heartbeat(workerId: String) extends DeployMessage + case class Heartbeat(workerId: String, worker: RpcEndpointRef) extends DeployMessage // Master to Worker - case class RegisteredWorker(masterUrl: String, masterWebUiUrl: String) extends DeployMessage + case class RegisteredWorker(master: RpcEndpointRef, masterWebUiUrl: String) extends DeployMessage case class RegisterWorkerFailed(message: String) extends DeployMessage @@ -92,13 +94,13 @@ private[deploy] object DeployMessages { // Worker internal - case object WorkDirCleanup // Sent to Worker actor periodically for cleaning up app folders + case object WorkDirCleanup // Sent to Worker endpoint periodically for cleaning up app folders case object ReregisterWithMaster // used when a worker attempts to reconnect to a master // AppClient to Master - case class RegisterApplication(appDescription: ApplicationDescription) + case class RegisterApplication(appDescription: ApplicationDescription, driver: RpcEndpointRef) extends DeployMessage case class UnregisterApplication(appId: String) @@ -107,7 +109,7 @@ private[deploy] object DeployMessages { // Master to AppClient - case class RegisteredApplication(appId: String, masterUrl: String) extends DeployMessage + case class RegisteredApplication(appId: String, master: RpcEndpointRef) extends DeployMessage // TODO(matei): replace hostPort with host case class ExecutorAdded(id: Int, workerId: String, hostPort: String, cores: Int, memory: Int) { @@ -123,12 +125,14 @@ private[deploy] object DeployMessages { case class RequestSubmitDriver(driverDescription: DriverDescription) extends DeployMessage - case class SubmitDriverResponse(success: Boolean, driverId: Option[String], message: String) + case class SubmitDriverResponse( + master: RpcEndpointRef, success: Boolean, driverId: Option[String], message: String) extends DeployMessage case class RequestKillDriver(driverId: String) extends DeployMessage - case class KillDriverResponse(driverId: String, success: Boolean, message: String) + case class KillDriverResponse( + master: RpcEndpointRef, driverId: String, success: Boolean, message: String) extends DeployMessage case class RequestDriverStatus(driverId: String) extends DeployMessage @@ -142,7 +146,7 @@ private[deploy] object DeployMessages { // Master to Worker & AppClient - case class MasterChanged(masterUrl: String, masterWebUiUrl: String) + case class MasterChanged(master: RpcEndpointRef, masterWebUiUrl: String) // MasterWebUI To Master diff --git a/core/src/main/scala/org/apache/spark/deploy/LocalSparkCluster.scala b/core/src/main/scala/org/apache/spark/deploy/LocalSparkCluster.scala index 0550f00a17..53356addf6 100644 --- a/core/src/main/scala/org/apache/spark/deploy/LocalSparkCluster.scala +++ b/core/src/main/scala/org/apache/spark/deploy/LocalSparkCluster.scala @@ -19,8 +19,7 @@ package org.apache.spark.deploy import scala.collection.mutable.ArrayBuffer -import akka.actor.ActorSystem - +import org.apache.spark.rpc.RpcEnv import org.apache.spark.{Logging, SparkConf} import org.apache.spark.deploy.worker.Worker import org.apache.spark.deploy.master.Master @@ -41,8 +40,8 @@ class LocalSparkCluster( extends Logging { private val localHostname = Utils.localHostName() - private val masterActorSystems = ArrayBuffer[ActorSystem]() - private val workerActorSystems = ArrayBuffer[ActorSystem]() + private val masterRpcEnvs = ArrayBuffer[RpcEnv]() + private val workerRpcEnvs = ArrayBuffer[RpcEnv]() // exposed for testing var masterWebUIPort = -1 @@ -55,18 +54,17 @@ class LocalSparkCluster( .set("spark.shuffle.service.enabled", "false") /* Start the Master */ - val (masterSystem, masterPort, webUiPort, _) = - Master.startSystemAndActor(localHostname, 0, 0, _conf) + val (rpcEnv, webUiPort, _) = Master.startRpcEnvAndEndpoint(localHostname, 0, 0, _conf) masterWebUIPort = webUiPort - masterActorSystems += masterSystem - val masterUrl = "spark://" + Utils.localHostNameForURI() + ":" + masterPort + masterRpcEnvs += rpcEnv + val masterUrl = "spark://" + Utils.localHostNameForURI() + ":" + rpcEnv.address.port val masters = Array(masterUrl) /* Start the Workers */ for (workerNum <- 1 to numWorkers) { - val (workerSystem, _) = Worker.startSystemAndActor(localHostname, 0, 0, coresPerWorker, + val workerEnv = Worker.startRpcEnvAndEndpoint(localHostname, 0, 0, coresPerWorker, memoryPerWorker, masters, null, Some(workerNum), _conf) - workerActorSystems += workerSystem + workerRpcEnvs += workerEnv } masters @@ -77,11 +75,11 @@ class LocalSparkCluster( // Stop the workers before the master so they don't get upset that it disconnected // TODO: In Akka 2.1.x, ActorSystem.awaitTermination hangs when you have remote actors! // This is unfortunate, but for now we just comment it out. - workerActorSystems.foreach(_.shutdown()) + workerRpcEnvs.foreach(_.shutdown()) // workerActorSystems.foreach(_.awaitTermination()) - masterActorSystems.foreach(_.shutdown()) + masterRpcEnvs.foreach(_.shutdown()) // masterActorSystems.foreach(_.awaitTermination()) - masterActorSystems.clear() - workerActorSystems.clear() + masterRpcEnvs.clear() + workerRpcEnvs.clear() } } diff --git a/core/src/main/scala/org/apache/spark/deploy/client/AppClient.scala b/core/src/main/scala/org/apache/spark/deploy/client/AppClient.scala index 43c8a934c3..79b251e7e6 100644 --- a/core/src/main/scala/org/apache/spark/deploy/client/AppClient.scala +++ b/core/src/main/scala/org/apache/spark/deploy/client/AppClient.scala @@ -17,20 +17,17 @@ package org.apache.spark.deploy.client -import java.util.concurrent.TimeoutException +import java.util.concurrent._ +import java.util.concurrent.{Future => JFuture, ScheduledFuture => JScheduledFuture} -import scala.concurrent.Await -import scala.concurrent.duration._ - -import akka.actor._ -import akka.pattern.ask -import akka.remote.{AssociationErrorEvent, DisassociatedEvent, RemotingLifecycleEvent} +import scala.util.control.NonFatal import org.apache.spark.{Logging, SparkConf} import org.apache.spark.deploy.{ApplicationDescription, ExecutorState} import org.apache.spark.deploy.DeployMessages._ import org.apache.spark.deploy.master.Master -import org.apache.spark.util.{ActorLogReceive, RpcUtils, Utils, AkkaUtils} +import org.apache.spark.rpc._ +import org.apache.spark.util.{ThreadUtils, Utils} /** * Interface allowing applications to speak with a Spark deploy cluster. Takes a master URL, @@ -40,98 +37,143 @@ import org.apache.spark.util.{ActorLogReceive, RpcUtils, Utils, AkkaUtils} * @param masterUrls Each url should look like spark://host:port. */ private[spark] class AppClient( - actorSystem: ActorSystem, + rpcEnv: RpcEnv, masterUrls: Array[String], appDescription: ApplicationDescription, listener: AppClientListener, conf: SparkConf) extends Logging { - private val masterAkkaUrls = masterUrls.map(Master.toAkkaUrl(_, AkkaUtils.protocol(actorSystem))) + private val masterRpcAddresses = masterUrls.map(RpcAddress.fromSparkURL(_)) - private val REGISTRATION_TIMEOUT = 20.seconds + private val REGISTRATION_TIMEOUT_SECONDS = 20 private val REGISTRATION_RETRIES = 3 - private var masterAddress: Address = null - private var actor: ActorRef = null + private var endpoint: RpcEndpointRef = null private var appId: String = null - private var registered = false - private var activeMasterUrl: String = null + @volatile private var registered = false + + private class ClientEndpoint(override val rpcEnv: RpcEnv) extends ThreadSafeRpcEndpoint + with Logging { + + private var master: Option[RpcEndpointRef] = None + // To avoid calling listener.disconnected() multiple times + private var alreadyDisconnected = false + @volatile private var alreadyDead = false // To avoid calling listener.dead() multiple times + @volatile private var registerMasterFutures: Array[JFuture[_]] = null + @volatile private var registrationRetryTimer: JScheduledFuture[_] = null + + // A thread pool for registering with masters. Because registering with a master is a blocking + // action, this thread pool must be able to create "masterRpcAddresses.size" threads at the same + // time so that we can register with all masters. + private val registerMasterThreadPool = new ThreadPoolExecutor( + 0, + masterRpcAddresses.size, // Make sure we can register with all masters at the same time + 60L, TimeUnit.SECONDS, + new SynchronousQueue[Runnable](), + ThreadUtils.namedThreadFactory("appclient-register-master-threadpool")) - private class ClientActor extends Actor with ActorLogReceive with Logging { - var master: ActorSelection = null - var alreadyDisconnected = false // To avoid calling listener.disconnected() multiple times - var alreadyDead = false // To avoid calling listener.dead() multiple times - var registrationRetryTimer: Option[Cancellable] = None + // A scheduled executor for scheduling the registration actions + private val registrationRetryThread = + ThreadUtils.newDaemonSingleThreadScheduledExecutor("appclient-registration-retry-thread") - override def preStart() { - context.system.eventStream.subscribe(self, classOf[RemotingLifecycleEvent]) + override def onStart(): Unit = { try { - registerWithMaster() + registerWithMaster(1) } catch { case e: Exception => logWarning("Failed to connect to master", e) markDisconnected() - context.stop(self) + stop() } } - def tryRegisterAllMasters() { - for (masterAkkaUrl <- masterAkkaUrls) { - logInfo("Connecting to master " + masterAkkaUrl + "...") - val actor = context.actorSelection(masterAkkaUrl) - actor ! RegisterApplication(appDescription) + /** + * Register with all masters asynchronously and returns an array `Future`s for cancellation. + */ + private def tryRegisterAllMasters(): Array[JFuture[_]] = { + for (masterAddress <- masterRpcAddresses) yield { + registerMasterThreadPool.submit(new Runnable { + override def run(): Unit = try { + if (registered) { + return + } + logInfo("Connecting to master " + masterAddress.toSparkURL + "...") + val masterRef = + rpcEnv.setupEndpointRef(Master.SYSTEM_NAME, masterAddress, Master.ENDPOINT_NAME) + masterRef.send(RegisterApplication(appDescription, self)) + } catch { + case ie: InterruptedException => // Cancelled + case NonFatal(e) => logWarning(s"Failed to connect to master $masterAddress", e) + } + }) } } - def registerWithMaster() { - tryRegisterAllMasters() - import context.dispatcher - var retries = 0 - registrationRetryTimer = Some { - context.system.scheduler.schedule(REGISTRATION_TIMEOUT, REGISTRATION_TIMEOUT) { + /** + * Register with all masters asynchronously. It will call `registerWithMaster` every + * REGISTRATION_TIMEOUT_SECONDS seconds until exceeding REGISTRATION_RETRIES times. + * Once we connect to a master successfully, all scheduling work and Futures will be cancelled. + * + * nthRetry means this is the nth attempt to register with master. + */ + private def registerWithMaster(nthRetry: Int) { + registerMasterFutures = tryRegisterAllMasters() + registrationRetryTimer = registrationRetryThread.scheduleAtFixedRate(new Runnable { + override def run(): Unit = { Utils.tryOrExit { - retries += 1 if (registered) { - registrationRetryTimer.foreach(_.cancel()) - } else if (retries >= REGISTRATION_RETRIES) { + registerMasterFutures.foreach(_.cancel(true)) + registerMasterThreadPool.shutdownNow() + } else if (nthRetry >= REGISTRATION_RETRIES) { markDead("All masters are unresponsive! Giving up.") } else { - tryRegisterAllMasters() + registerMasterFutures.foreach(_.cancel(true)) + registerWithMaster(nthRetry + 1) } } } - } + }, REGISTRATION_TIMEOUT_SECONDS, REGISTRATION_TIMEOUT_SECONDS, TimeUnit.SECONDS) } - def changeMaster(url: String) { - // activeMasterUrl is a valid Spark url since we receive it from master. - activeMasterUrl = url - master = context.actorSelection( - Master.toAkkaUrl(activeMasterUrl, AkkaUtils.protocol(actorSystem))) - masterAddress = Master.toAkkaAddress(activeMasterUrl, AkkaUtils.protocol(actorSystem)) + /** + * Send a message to the current master. If we have not yet registered successfully with any + * master, the message will be dropped. + */ + private def sendToMaster(message: Any): Unit = { + master match { + case Some(masterRef) => masterRef.send(message) + case None => logWarning(s"Drop $message because has not yet connected to master") + } } - private def isPossibleMaster(remoteUrl: Address) = { - masterAkkaUrls.map(AddressFromURIString(_).hostPort).contains(remoteUrl.hostPort) + private def isPossibleMaster(remoteAddress: RpcAddress): Boolean = { + masterRpcAddresses.contains(remoteAddress) } - override def receiveWithLogging: PartialFunction[Any, Unit] = { - case RegisteredApplication(appId_, masterUrl) => + override def receive: PartialFunction[Any, Unit] = { + case RegisteredApplication(appId_, masterRef) => + // FIXME How to handle the following cases? + // 1. A master receives multiple registrations and sends back multiple + // RegisteredApplications due to an unstable network. + // 2. Receive multiple RegisteredApplication from different masters because the master is + // changing. appId = appId_ registered = true - changeMaster(masterUrl) + master = Some(masterRef) listener.connected(appId) case ApplicationRemoved(message) => markDead("Master removed our application: %s".format(message)) - context.stop(self) + stop() case ExecutorAdded(id: Int, workerId: String, hostPort: String, cores: Int, memory: Int) => val fullId = appId + "/" + id logInfo("Executor added: %s on %s (%s) with %d cores".format(fullId, workerId, hostPort, cores)) - master ! ExecutorStateChanged(appId, id, ExecutorState.RUNNING, None, None) + // FIXME if changing master and `ExecutorAdded` happen at the same time (the order is not + // guaranteed), `ExecutorStateChanged` may be sent to a dead master. + sendToMaster(ExecutorStateChanged(appId, id, ExecutorState.RUNNING, None, None)) listener.executorAdded(fullId, workerId, hostPort, cores, memory) case ExecutorUpdated(id, state, message, exitStatus) => @@ -142,24 +184,32 @@ private[spark] class AppClient( listener.executorRemoved(fullId, message.getOrElse(""), exitStatus) } - case MasterChanged(masterUrl, masterWebUiUrl) => - logInfo("Master has changed, new master is at " + masterUrl) - changeMaster(masterUrl) + case MasterChanged(masterRef, masterWebUiUrl) => + logInfo("Master has changed, new master is at " + masterRef.address.toSparkURL) + master = Some(masterRef) alreadyDisconnected = false - sender ! MasterChangeAcknowledged(appId) + masterRef.send(MasterChangeAcknowledged(appId)) + } - case DisassociatedEvent(_, address, _) if address == masterAddress => + override def receiveAndReply(context: RpcCallContext): PartialFunction[Any, Unit] = { + case StopAppClient => + markDead("Application has been stopped.") + sendToMaster(UnregisterApplication(appId)) + context.reply(true) + stop() + } + + override def onDisconnected(address: RpcAddress): Unit = { + if (master.exists(_.address == address)) { logWarning(s"Connection to $address failed; waiting for master to reconnect...") markDisconnected() + } + } - case AssociationErrorEvent(cause, _, address, _, _) if isPossibleMaster(address) => + override def onNetworkError(cause: Throwable, address: RpcAddress): Unit = { + if (isPossibleMaster(address)) { logWarning(s"Could not connect to $address: $cause") - - case StopAppClient => - markDead("Application has been stopped.") - master ! UnregisterApplication(appId) - sender ! true - context.stop(self) + } } /** @@ -179,28 +229,31 @@ private[spark] class AppClient( } } - override def postStop() { - registrationRetryTimer.foreach(_.cancel()) + override def onStop(): Unit = { + if (registrationRetryTimer != null) { + registrationRetryTimer.cancel(true) + } + registrationRetryThread.shutdownNow() + registerMasterFutures.foreach(_.cancel(true)) + registerMasterThreadPool.shutdownNow() } } def start() { // Just launch an actor; it will call back into the listener. - actor = actorSystem.actorOf(Props(new ClientActor)) + endpoint = rpcEnv.setupEndpoint("AppClient", new ClientEndpoint(rpcEnv)) } def stop() { - if (actor != null) { + if (endpoint != null) { try { - val timeout = RpcUtils.askTimeout(conf) - val future = actor.ask(StopAppClient)(timeout) - Await.result(future, timeout) + endpoint.askWithRetry[Boolean](StopAppClient) } catch { case e: TimeoutException => logInfo("Stop request to Master timed out; it may already be shut down.") } - actor = null + endpoint = null } } } diff --git a/core/src/main/scala/org/apache/spark/deploy/client/TestClient.scala b/core/src/main/scala/org/apache/spark/deploy/client/TestClient.scala index 40835b9550..1c79089303 100644 --- a/core/src/main/scala/org/apache/spark/deploy/client/TestClient.scala +++ b/core/src/main/scala/org/apache/spark/deploy/client/TestClient.scala @@ -17,9 +17,10 @@ package org.apache.spark.deploy.client +import org.apache.spark.rpc.RpcEnv import org.apache.spark.{SecurityManager, SparkConf, Logging} import org.apache.spark.deploy.{ApplicationDescription, Command} -import org.apache.spark.util.{AkkaUtils, Utils} +import org.apache.spark.util.Utils private[spark] object TestClient { @@ -46,13 +47,12 @@ private[spark] object TestClient { def main(args: Array[String]) { val url = args(0) val conf = new SparkConf - val (actorSystem, _) = AkkaUtils.createActorSystem("spark", Utils.localHostName(), 0, - conf = conf, securityManager = new SecurityManager(conf)) + val rpcEnv = RpcEnv.create("spark", Utils.localHostName(), 0, conf, new SecurityManager(conf)) val desc = new ApplicationDescription("TestClient", Some(1), 512, Command("spark.deploy.client.TestExecutor", Seq(), Map(), Seq(), Seq(), Seq()), "ignored") val listener = new TestListener - val client = new AppClient(actorSystem, Array(url), desc, listener, new SparkConf) + val client = new AppClient(rpcEnv, Array(url), desc, listener, new SparkConf) client.start() - actorSystem.awaitTermination() + rpcEnv.awaitTermination() } } diff --git a/core/src/main/scala/org/apache/spark/deploy/master/ApplicationInfo.scala b/core/src/main/scala/org/apache/spark/deploy/master/ApplicationInfo.scala index 1620e95bea..aa54ed9360 100644 --- a/core/src/main/scala/org/apache/spark/deploy/master/ApplicationInfo.scala +++ b/core/src/main/scala/org/apache/spark/deploy/master/ApplicationInfo.scala @@ -22,10 +22,9 @@ import java.util.Date import scala.collection.mutable import scala.collection.mutable.ArrayBuffer -import akka.actor.ActorRef - import org.apache.spark.annotation.DeveloperApi import org.apache.spark.deploy.ApplicationDescription +import org.apache.spark.rpc.RpcEndpointRef import org.apache.spark.util.Utils private[spark] class ApplicationInfo( @@ -33,7 +32,7 @@ private[spark] class ApplicationInfo( val id: String, val desc: ApplicationDescription, val submitDate: Date, - val driver: ActorRef, + val driver: RpcEndpointRef, defaultCores: Int) extends Serializable { diff --git a/core/src/main/scala/org/apache/spark/deploy/master/Master.scala b/core/src/main/scala/org/apache/spark/deploy/master/Master.scala index fccceb3ea5..3e7c167228 100644 --- a/core/src/main/scala/org/apache/spark/deploy/master/Master.scala +++ b/core/src/main/scala/org/apache/spark/deploy/master/Master.scala @@ -21,20 +21,18 @@ import java.io.FileNotFoundException import java.net.URLEncoder import java.text.SimpleDateFormat import java.util.Date +import java.util.concurrent.{ScheduledFuture, TimeUnit} import scala.collection.mutable.{ArrayBuffer, HashMap, HashSet} -import scala.concurrent.Await -import scala.concurrent.duration._ import scala.language.postfixOps import scala.util.Random -import akka.actor._ -import akka.pattern.ask -import akka.remote.{DisassociatedEvent, RemotingLifecycleEvent} import akka.serialization.Serialization import akka.serialization.SerializationExtension import org.apache.hadoop.fs.Path +import org.apache.spark.rpc.akka.AkkaRpcEnv +import org.apache.spark.rpc._ import org.apache.spark.{Logging, SecurityManager, SparkConf, SparkException} import org.apache.spark.deploy.{ApplicationDescription, DriverDescription, ExecutorState, SparkHadoopUtil} @@ -47,23 +45,27 @@ import org.apache.spark.deploy.rest.StandaloneRestServer import org.apache.spark.metrics.MetricsSystem import org.apache.spark.scheduler.{EventLoggingListener, ReplayListenerBus} import org.apache.spark.ui.SparkUI -import org.apache.spark.util.{ActorLogReceive, AkkaUtils, RpcUtils, SignalLogger, Utils} +import org.apache.spark.util.{ThreadUtils, SignalLogger, Utils} private[master] class Master( - host: String, - port: Int, + override val rpcEnv: RpcEnv, + address: RpcAddress, webUiPort: Int, val securityMgr: SecurityManager, val conf: SparkConf) - extends Actor with ActorLogReceive with Logging with LeaderElectable { + extends ThreadSafeRpcEndpoint with Logging with LeaderElectable { - import context.dispatcher // to use Akka's scheduler.schedule() + private val forwardMessageThread = + ThreadUtils.newDaemonSingleThreadScheduledExecutor("master-forward-message-thread") + + // TODO Remove it once we don't use akka.serialization.Serialization + private val actorSystem = rpcEnv.asInstanceOf[AkkaRpcEnv].actorSystem private val hadoopConf = SparkHadoopUtil.get.newConfiguration(conf) - private def createDateFormat = new SimpleDateFormat("yyyyMMddHHmmss") // For application IDs + private def createDateFormat = new SimpleDateFormat("yyyyMMddHHmmss") // For application IDs - private val WORKER_TIMEOUT = conf.getLong("spark.worker.timeout", 60) * 1000 + private val WORKER_TIMEOUT_MS = conf.getLong("spark.worker.timeout", 60) * 1000 private val RETAINED_APPLICATIONS = conf.getInt("spark.deploy.retainedApplications", 200) private val RETAINED_DRIVERS = conf.getInt("spark.deploy.retainedDrivers", 200) private val REAPER_ITERATIONS = conf.getInt("spark.dead.worker.persistence", 15) @@ -75,10 +77,10 @@ private[master] class Master( val apps = new HashSet[ApplicationInfo] private val idToWorker = new HashMap[String, WorkerInfo] - private val addressToWorker = new HashMap[Address, WorkerInfo] + private val addressToWorker = new HashMap[RpcAddress, WorkerInfo] - private val actorToApp = new HashMap[ActorRef, ApplicationInfo] - private val addressToApp = new HashMap[Address, ApplicationInfo] + private val endpointToApp = new HashMap[RpcEndpointRef, ApplicationInfo] + private val addressToApp = new HashMap[RpcAddress, ApplicationInfo] private val completedApps = new ArrayBuffer[ApplicationInfo] private var nextAppNumber = 0 private val appIdToUI = new HashMap[String, SparkUI] @@ -89,21 +91,22 @@ private[master] class Master( private val waitingDrivers = new ArrayBuffer[DriverInfo] private var nextDriverNumber = 0 - Utils.checkHost(host, "Expected hostname") + Utils.checkHost(address.host, "Expected hostname") private val masterMetricsSystem = MetricsSystem.createMetricsSystem("master", conf, securityMgr) private val applicationMetricsSystem = MetricsSystem.createMetricsSystem("applications", conf, securityMgr) private val masterSource = new MasterSource(this) - private val webUi = new MasterWebUI(this, webUiPort) + // After onStart, webUi will be set + private var webUi: MasterWebUI = null private val masterPublicAddress = { val envVar = conf.getenv("SPARK_PUBLIC_DNS") - if (envVar != null) envVar else host + if (envVar != null) envVar else address.host } - private val masterUrl = "spark://" + host + ":" + port + private val masterUrl = address.toSparkURL private var masterWebUiUrl: String = _ private var state = RecoveryState.STANDBY @@ -112,7 +115,9 @@ private[master] class Master( private var leaderElectionAgent: LeaderElectionAgent = _ - private var recoveryCompletionTask: Cancellable = _ + private var recoveryCompletionTask: ScheduledFuture[_] = _ + + private var checkForWorkerTimeOutTask: ScheduledFuture[_] = _ // As a temporary workaround before better ways of configuring memory, we allow users to set // a flag that will perform round-robin scheduling across the nodes (spreading out each app @@ -130,20 +135,23 @@ private[master] class Master( private val restServer = if (restServerEnabled) { val port = conf.getInt("spark.master.rest.port", 6066) - Some(new StandaloneRestServer(host, port, conf, self, masterUrl)) + Some(new StandaloneRestServer(address.host, port, conf, self, masterUrl)) } else { None } private val restServerBoundPort = restServer.map(_.start()) - override def preStart() { + override def onStart(): Unit = { logInfo("Starting Spark master at " + masterUrl) logInfo(s"Running Spark version ${org.apache.spark.SPARK_VERSION}") - // Listen for remote client disconnection events, since they don't go through Akka's watch() - context.system.eventStream.subscribe(self, classOf[RemotingLifecycleEvent]) + webUi = new MasterWebUI(this, webUiPort) webUi.bind() masterWebUiUrl = "http://" + masterPublicAddress + ":" + webUi.boundPort - context.system.scheduler.schedule(0 millis, WORKER_TIMEOUT millis, self, CheckForWorkerTimeOut) + checkForWorkerTimeOutTask = forwardMessageThread.scheduleAtFixedRate(new Runnable { + override def run(): Unit = Utils.tryLogNonFatalError { + self.send(CheckForWorkerTimeOut) + } + }, 0, WORKER_TIMEOUT_MS, TimeUnit.MILLISECONDS) masterMetricsSystem.registerSource(masterSource) masterMetricsSystem.start() @@ -157,16 +165,16 @@ private[master] class Master( case "ZOOKEEPER" => logInfo("Persisting recovery state to ZooKeeper") val zkFactory = - new ZooKeeperRecoveryModeFactory(conf, SerializationExtension(context.system)) + new ZooKeeperRecoveryModeFactory(conf, SerializationExtension(actorSystem)) (zkFactory.createPersistenceEngine(), zkFactory.createLeaderElectionAgent(this)) case "FILESYSTEM" => val fsFactory = - new FileSystemRecoveryModeFactory(conf, SerializationExtension(context.system)) + new FileSystemRecoveryModeFactory(conf, SerializationExtension(actorSystem)) (fsFactory.createPersistenceEngine(), fsFactory.createLeaderElectionAgent(this)) case "CUSTOM" => val clazz = Class.forName(conf.get("spark.deploy.recoveryMode.factory")) val factory = clazz.getConstructor(classOf[SparkConf], classOf[Serialization]) - .newInstance(conf, SerializationExtension(context.system)) + .newInstance(conf, SerializationExtension(actorSystem)) .asInstanceOf[StandaloneRecoveryModeFactory] (factory.createPersistenceEngine(), factory.createLeaderElectionAgent(this)) case _ => @@ -176,18 +184,17 @@ private[master] class Master( leaderElectionAgent = leaderElectionAgent_ } - override def preRestart(reason: Throwable, message: Option[Any]) { - super.preRestart(reason, message) // calls postStop()! - logError("Master actor restarted due to exception", reason) - } - - override def postStop() { + override def onStop() { masterMetricsSystem.report() applicationMetricsSystem.report() // prevent the CompleteRecovery message sending to restarted master if (recoveryCompletionTask != null) { - recoveryCompletionTask.cancel() + recoveryCompletionTask.cancel(true) } + if (checkForWorkerTimeOutTask != null) { + checkForWorkerTimeOutTask.cancel(true) + } + forwardMessageThread.shutdownNow() webUi.stop() restServer.foreach(_.stop()) masterMetricsSystem.stop() @@ -197,14 +204,14 @@ private[master] class Master( } override def electedLeader() { - self ! ElectedLeader + self.send(ElectedLeader) } override def revokedLeadership() { - self ! RevokedLeadership + self.send(RevokedLeadership) } - override def receiveWithLogging: PartialFunction[Any, Unit] = { + override def receive: PartialFunction[Any, Unit] = { case ElectedLeader => { val (storedApps, storedDrivers, storedWorkers) = persistenceEngine.readPersistedData() state = if (storedApps.isEmpty && storedDrivers.isEmpty && storedWorkers.isEmpty) { @@ -215,8 +222,11 @@ private[master] class Master( logInfo("I have been elected leader! New state: " + state) if (state == RecoveryState.RECOVERING) { beginRecovery(storedApps, storedDrivers, storedWorkers) - recoveryCompletionTask = context.system.scheduler.scheduleOnce(WORKER_TIMEOUT millis, self, - CompleteRecovery) + recoveryCompletionTask = forwardMessageThread.schedule(new Runnable { + override def run(): Unit = Utils.tryLogNonFatalError { + self.send(CompleteRecovery) + } + }, WORKER_TIMEOUT_MS, TimeUnit.MILLISECONDS) } } @@ -227,111 +237,42 @@ private[master] class Master( System.exit(0) } - case RegisterWorker(id, workerHost, workerPort, cores, memory, workerUiPort, publicAddress) => - { + case RegisterWorker( + id, workerHost, workerPort, workerRef, cores, memory, workerUiPort, publicAddress) => { logInfo("Registering worker %s:%d with %d cores, %s RAM".format( workerHost, workerPort, cores, Utils.megabytesToString(memory))) if (state == RecoveryState.STANDBY) { // ignore, don't send response } else if (idToWorker.contains(id)) { - sender ! RegisterWorkerFailed("Duplicate worker ID") + workerRef.send(RegisterWorkerFailed("Duplicate worker ID")) } else { val worker = new WorkerInfo(id, workerHost, workerPort, cores, memory, - sender, workerUiPort, publicAddress) + workerRef, workerUiPort, publicAddress) if (registerWorker(worker)) { persistenceEngine.addWorker(worker) - sender ! RegisteredWorker(masterUrl, masterWebUiUrl) + workerRef.send(RegisteredWorker(self, masterWebUiUrl)) schedule() } else { - val workerAddress = worker.actor.path.address + val workerAddress = worker.endpoint.address logWarning("Worker registration failed. Attempted to re-register worker at same " + "address: " + workerAddress) - sender ! RegisterWorkerFailed("Attempted to re-register worker at same address: " - + workerAddress) + workerRef.send(RegisterWorkerFailed("Attempted to re-register worker at same address: " + + workerAddress)) } } } - case RequestSubmitDriver(description) => { - if (state != RecoveryState.ALIVE) { - val msg = s"${Utils.BACKUP_STANDALONE_MASTER_PREFIX}: $state. " + - "Can only accept driver submissions in ALIVE state." - sender ! SubmitDriverResponse(false, None, msg) - } else { - logInfo("Driver submitted " + description.command.mainClass) - val driver = createDriver(description) - persistenceEngine.addDriver(driver) - waitingDrivers += driver - drivers.add(driver) - schedule() - - // TODO: It might be good to instead have the submission client poll the master to determine - // the current status of the driver. For now it's simply "fire and forget". - - sender ! SubmitDriverResponse(true, Some(driver.id), - s"Driver successfully submitted as ${driver.id}") - } - } - - case RequestKillDriver(driverId) => { - if (state != RecoveryState.ALIVE) { - val msg = s"${Utils.BACKUP_STANDALONE_MASTER_PREFIX}: $state. " + - s"Can only kill drivers in ALIVE state." - sender ! KillDriverResponse(driverId, success = false, msg) - } else { - logInfo("Asked to kill driver " + driverId) - val driver = drivers.find(_.id == driverId) - driver match { - case Some(d) => - if (waitingDrivers.contains(d)) { - waitingDrivers -= d - self ! DriverStateChanged(driverId, DriverState.KILLED, None) - } else { - // We just notify the worker to kill the driver here. The final bookkeeping occurs - // on the return path when the worker submits a state change back to the master - // to notify it that the driver was successfully killed. - d.worker.foreach { w => - w.actor ! KillDriver(driverId) - } - } - // TODO: It would be nice for this to be a synchronous response - val msg = s"Kill request for $driverId submitted" - logInfo(msg) - sender ! KillDriverResponse(driverId, success = true, msg) - case None => - val msg = s"Driver $driverId has already finished or does not exist" - logWarning(msg) - sender ! KillDriverResponse(driverId, success = false, msg) - } - } - } - - case RequestDriverStatus(driverId) => { - if (state != RecoveryState.ALIVE) { - val msg = s"${Utils.BACKUP_STANDALONE_MASTER_PREFIX}: $state. " + - "Can only request driver status in ALIVE state." - sender ! DriverStatusResponse(found = false, None, None, None, Some(new Exception(msg))) - } else { - (drivers ++ completedDrivers).find(_.id == driverId) match { - case Some(driver) => - sender ! DriverStatusResponse(found = true, Some(driver.state), - driver.worker.map(_.id), driver.worker.map(_.hostPort), driver.exception) - case None => - sender ! DriverStatusResponse(found = false, None, None, None, None) - } - } - } - - case RegisterApplication(description) => { + case RegisterApplication(description, driver) => { + // TODO Prevent repeated registrations from some driver if (state == RecoveryState.STANDBY) { // ignore, don't send response } else { logInfo("Registering app " + description.name) - val app = createApplication(description, sender) + val app = createApplication(description, driver) registerApplication(app) logInfo("Registered app " + description.name + " with ID " + app.id) persistenceEngine.addApplication(app) - sender ! RegisteredApplication(app.id, masterUrl) + driver.send(RegisteredApplication(app.id, self)) schedule() } } @@ -343,7 +284,7 @@ private[master] class Master( val appInfo = idToApp(appId) exec.state = state if (state == ExecutorState.RUNNING) { appInfo.resetRetryCount() } - exec.application.driver ! ExecutorUpdated(execId, state, message, exitStatus) + exec.application.driver.send(ExecutorUpdated(execId, state, message, exitStatus)) if (ExecutorState.isFinished(state)) { // Remove this executor from the worker and app logInfo(s"Removing executor ${exec.fullId} because it is $state") @@ -384,7 +325,7 @@ private[master] class Master( } } - case Heartbeat(workerId) => { + case Heartbeat(workerId, worker) => { idToWorker.get(workerId) match { case Some(workerInfo) => workerInfo.lastHeartbeat = System.currentTimeMillis() @@ -392,7 +333,7 @@ private[master] class Master( if (workers.map(_.id).contains(workerId)) { logWarning(s"Got heartbeat from unregistered worker $workerId." + " Asking it to re-register.") - sender ! ReconnectWorker(masterUrl) + worker.send(ReconnectWorker(masterUrl)) } else { logWarning(s"Got heartbeat from unregistered worker $workerId." + " This worker was never registered, so ignoring the heartbeat.") @@ -444,30 +385,103 @@ private[master] class Master( logInfo(s"Received unregister request from application $applicationId") idToApp.get(applicationId).foreach(finishApplication) - case DisassociatedEvent(_, address, _) => { - // The disconnected client could've been either a worker or an app; remove whichever it was - logInfo(s"$address got disassociated, removing it.") - addressToWorker.get(address).foreach(removeWorker) - addressToApp.get(address).foreach(finishApplication) - if (state == RecoveryState.RECOVERING && canCompleteRecovery) { completeRecovery() } + case CheckForWorkerTimeOut => { + timeOutDeadWorkers() } + } - case RequestMasterState => { - sender ! MasterStateResponse( - host, port, restServerBoundPort, - workers.toArray, apps.toArray, completedApps.toArray, - drivers.toArray, completedDrivers.toArray, state) + override def receiveAndReply(context: RpcCallContext): PartialFunction[Any, Unit] = { + case RequestSubmitDriver(description) => { + if (state != RecoveryState.ALIVE) { + val msg = s"${Utils.BACKUP_STANDALONE_MASTER_PREFIX}: $state. " + + "Can only accept driver submissions in ALIVE state." + context.reply(SubmitDriverResponse(self, false, None, msg)) + } else { + logInfo("Driver submitted " + description.command.mainClass) + val driver = createDriver(description) + persistenceEngine.addDriver(driver) + waitingDrivers += driver + drivers.add(driver) + schedule() + + // TODO: It might be good to instead have the submission client poll the master to determine + // the current status of the driver. For now it's simply "fire and forget". + + context.reply(SubmitDriverResponse(self, true, Some(driver.id), + s"Driver successfully submitted as ${driver.id}")) + } } - case CheckForWorkerTimeOut => { - timeOutDeadWorkers() + case RequestKillDriver(driverId) => { + if (state != RecoveryState.ALIVE) { + val msg = s"${Utils.BACKUP_STANDALONE_MASTER_PREFIX}: $state. " + + s"Can only kill drivers in ALIVE state." + context.reply(KillDriverResponse(self, driverId, success = false, msg)) + } else { + logInfo("Asked to kill driver " + driverId) + val driver = drivers.find(_.id == driverId) + driver match { + case Some(d) => + if (waitingDrivers.contains(d)) { + waitingDrivers -= d + self.send(DriverStateChanged(driverId, DriverState.KILLED, None)) + } else { + // We just notify the worker to kill the driver here. The final bookkeeping occurs + // on the return path when the worker submits a state change back to the master + // to notify it that the driver was successfully killed. + d.worker.foreach { w => + w.endpoint.send(KillDriver(driverId)) + } + } + // TODO: It would be nice for this to be a synchronous response + val msg = s"Kill request for $driverId submitted" + logInfo(msg) + context.reply(KillDriverResponse(self, driverId, success = true, msg)) + case None => + val msg = s"Driver $driverId has already finished or does not exist" + logWarning(msg) + context.reply(KillDriverResponse(self, driverId, success = false, msg)) + } + } + } + + case RequestDriverStatus(driverId) => { + if (state != RecoveryState.ALIVE) { + val msg = s"${Utils.BACKUP_STANDALONE_MASTER_PREFIX}: $state. " + + "Can only request driver status in ALIVE state." + context.reply( + DriverStatusResponse(found = false, None, None, None, Some(new Exception(msg)))) + } else { + (drivers ++ completedDrivers).find(_.id == driverId) match { + case Some(driver) => + context.reply(DriverStatusResponse(found = true, Some(driver.state), + driver.worker.map(_.id), driver.worker.map(_.hostPort), driver.exception)) + case None => + context.reply(DriverStatusResponse(found = false, None, None, None, None)) + } + } + } + + case RequestMasterState => { + context.reply(MasterStateResponse( + address.host, address.port, restServerBoundPort, + workers.toArray, apps.toArray, completedApps.toArray, + drivers.toArray, completedDrivers.toArray, state)) } case BoundPortsRequest => { - sender ! BoundPortsResponse(port, webUi.boundPort, restServerBoundPort) + context.reply(BoundPortsResponse(address.port, webUi.boundPort, restServerBoundPort)) } } + override def onDisconnected(address: RpcAddress): Unit = { + // The disconnected client could've been either a worker or an app; remove whichever it was + logInfo(s"$address got disassociated, removing it.") + addressToWorker.get(address).foreach(removeWorker) + addressToApp.get(address).foreach(finishApplication) + if (state == RecoveryState.RECOVERING && canCompleteRecovery) { completeRecovery() } + } + private def canCompleteRecovery = workers.count(_.state == WorkerState.UNKNOWN) == 0 && apps.count(_.state == ApplicationState.UNKNOWN) == 0 @@ -479,7 +493,7 @@ private[master] class Master( try { registerApplication(app) app.state = ApplicationState.UNKNOWN - app.driver ! MasterChanged(masterUrl, masterWebUiUrl) + app.driver.send(MasterChanged(self, masterWebUiUrl)) } catch { case e: Exception => logInfo("App " + app.id + " had exception on reconnect") } @@ -496,7 +510,7 @@ private[master] class Master( try { registerWorker(worker) worker.state = WorkerState.UNKNOWN - worker.actor ! MasterChanged(masterUrl, masterWebUiUrl) + worker.endpoint.send(MasterChanged(self, masterWebUiUrl)) } catch { case e: Exception => logInfo("Worker " + worker.id + " had exception on reconnect") } @@ -504,6 +518,7 @@ private[master] class Master( } private def completeRecovery() { + // TODO Why synchronized // Ensure "only-once" recovery semantics using a short synchronization period. synchronized { if (state != RecoveryState.RECOVERING) { return } @@ -623,10 +638,10 @@ private[master] class Master( private def launchExecutor(worker: WorkerInfo, exec: ExecutorDesc): Unit = { logInfo("Launching executor " + exec.fullId + " on worker " + worker.id) worker.addExecutor(exec) - worker.actor ! LaunchExecutor(masterUrl, - exec.application.id, exec.id, exec.application.desc, exec.cores, exec.memory) - exec.application.driver ! ExecutorAdded( - exec.id, worker.id, worker.hostPort, exec.cores, exec.memory) + worker.endpoint.send(LaunchExecutor(masterUrl, + exec.application.id, exec.id, exec.application.desc, exec.cores, exec.memory)) + exec.application.driver.send(ExecutorAdded( + exec.id, worker.id, worker.hostPort, exec.cores, exec.memory)) } private def registerWorker(worker: WorkerInfo): Boolean = { @@ -638,7 +653,7 @@ private[master] class Master( workers -= w } - val workerAddress = worker.actor.path.address + val workerAddress = worker.endpoint.address if (addressToWorker.contains(workerAddress)) { val oldWorker = addressToWorker(workerAddress) if (oldWorker.state == WorkerState.UNKNOWN) { @@ -661,11 +676,11 @@ private[master] class Master( logInfo("Removing worker " + worker.id + " on " + worker.host + ":" + worker.port) worker.setState(WorkerState.DEAD) idToWorker -= worker.id - addressToWorker -= worker.actor.path.address + addressToWorker -= worker.endpoint.address for (exec <- worker.executors.values) { logInfo("Telling app of lost executor: " + exec.id) - exec.application.driver ! ExecutorUpdated( - exec.id, ExecutorState.LOST, Some("worker lost"), None) + exec.application.driver.send(ExecutorUpdated( + exec.id, ExecutorState.LOST, Some("worker lost"), None)) exec.application.removeExecutor(exec) } for (driver <- worker.drivers.values) { @@ -687,14 +702,15 @@ private[master] class Master( schedule() } - private def createApplication(desc: ApplicationDescription, driver: ActorRef): ApplicationInfo = { + private def createApplication(desc: ApplicationDescription, driver: RpcEndpointRef): + ApplicationInfo = { val now = System.currentTimeMillis() val date = new Date(now) new ApplicationInfo(now, newApplicationId(date), desc, date, driver, defaultCores) } private def registerApplication(app: ApplicationInfo): Unit = { - val appAddress = app.driver.path.address + val appAddress = app.driver.address if (addressToApp.contains(appAddress)) { logInfo("Attempted to re-register application at same address: " + appAddress) return @@ -703,7 +719,7 @@ private[master] class Master( applicationMetricsSystem.registerSource(app.appSource) apps += app idToApp(app.id) = app - actorToApp(app.driver) = app + endpointToApp(app.driver) = app addressToApp(appAddress) = app waitingApps += app } @@ -717,8 +733,8 @@ private[master] class Master( logInfo("Removing app " + app.id) apps -= app idToApp -= app.id - actorToApp -= app.driver - addressToApp -= app.driver.path.address + endpointToApp -= app.driver + addressToApp -= app.driver.address if (completedApps.size >= RETAINED_APPLICATIONS) { val toRemove = math.max(RETAINED_APPLICATIONS / 10, 1) completedApps.take(toRemove).foreach( a => { @@ -735,19 +751,19 @@ private[master] class Master( for (exec <- app.executors.values) { exec.worker.removeExecutor(exec) - exec.worker.actor ! KillExecutor(masterUrl, exec.application.id, exec.id) + exec.worker.endpoint.send(KillExecutor(masterUrl, exec.application.id, exec.id)) exec.state = ExecutorState.KILLED } app.markFinished(state) if (state != ApplicationState.FINISHED) { - app.driver ! ApplicationRemoved(state.toString) + app.driver.send(ApplicationRemoved(state.toString)) } persistenceEngine.removeApplication(app) schedule() // Tell all workers that the application has finished, so they can clean up any app state. workers.foreach { w => - w.actor ! ApplicationFinished(app.id) + w.endpoint.send(ApplicationFinished(app.id)) } } } @@ -768,7 +784,7 @@ private[master] class Master( } val eventLogFilePrefix = EventLoggingListener.getLogPath( - eventLogDir, app.id, None, app.desc.eventLogCodec) + eventLogDir, app.id, app.desc.eventLogCodec) val fs = Utils.getHadoopFileSystem(eventLogDir, hadoopConf) val inProgressExists = fs.exists(new Path(eventLogFilePrefix + EventLoggingListener.IN_PROGRESS)) @@ -832,14 +848,14 @@ private[master] class Master( private def timeOutDeadWorkers() { // Copy the workers into an array so we don't modify the hashset while iterating through it val currentTime = System.currentTimeMillis() - val toRemove = workers.filter(_.lastHeartbeat < currentTime - WORKER_TIMEOUT).toArray + val toRemove = workers.filter(_.lastHeartbeat < currentTime - WORKER_TIMEOUT_MS).toArray for (worker <- toRemove) { if (worker.state != WorkerState.DEAD) { logWarning("Removing %s because we got no heartbeat in %d seconds".format( - worker.id, WORKER_TIMEOUT/1000)) + worker.id, WORKER_TIMEOUT_MS / 1000)) removeWorker(worker) } else { - if (worker.lastHeartbeat < currentTime - ((REAPER_ITERATIONS + 1) * WORKER_TIMEOUT)) { + if (worker.lastHeartbeat < currentTime - ((REAPER_ITERATIONS + 1) * WORKER_TIMEOUT_MS)) { workers -= worker // we've seen this DEAD worker in the UI, etc. for long enough; cull it } } @@ -862,7 +878,7 @@ private[master] class Master( logInfo("Launching driver " + driver.id + " on worker " + worker.id) worker.addDriver(driver) driver.worker = Some(worker) - worker.actor ! LaunchDriver(driver.id, driver.desc) + worker.endpoint.send(LaunchDriver(driver.id, driver.desc)) driver.state = DriverState.RUNNING } @@ -891,57 +907,33 @@ private[master] class Master( } private[deploy] object Master extends Logging { - val systemName = "sparkMaster" - private val actorName = "Master" + val SYSTEM_NAME = "sparkMaster" + val ENDPOINT_NAME = "Master" def main(argStrings: Array[String]) { SignalLogger.register(log) val conf = new SparkConf val args = new MasterArguments(argStrings, conf) - val (actorSystem, _, _, _) = startSystemAndActor(args.host, args.port, args.webUiPort, conf) - actorSystem.awaitTermination() - } - - /** - * Returns an `akka.tcp://...` URL for the Master actor given a sparkUrl `spark://host:port`. - * - * @throws SparkException if the url is invalid - */ - def toAkkaUrl(sparkUrl: String, protocol: String): String = { - val (host, port) = Utils.extractHostPortFromSparkUrl(sparkUrl) - AkkaUtils.address(protocol, systemName, host, port, actorName) - } - - /** - * Returns an akka `Address` for the Master actor given a sparkUrl `spark://host:port`. - * - * @throws SparkException if the url is invalid - */ - def toAkkaAddress(sparkUrl: String, protocol: String): Address = { - val (host, port) = Utils.extractHostPortFromSparkUrl(sparkUrl) - Address(protocol, systemName, host, port) + val (rpcEnv, _, _) = startRpcEnvAndEndpoint(args.host, args.port, args.webUiPort, conf) + rpcEnv.awaitTermination() } /** - * Start the Master and return a four tuple of: - * (1) The Master actor system - * (2) The bound port - * (3) The web UI bound port - * (4) The REST server bound port, if any + * Start the Master and return a three tuple of: + * (1) The Master RpcEnv + * (2) The web UI bound port + * (3) The REST server bound port, if any */ - def startSystemAndActor( + def startRpcEnvAndEndpoint( host: String, port: Int, webUiPort: Int, - conf: SparkConf): (ActorSystem, Int, Int, Option[Int]) = { + conf: SparkConf): (RpcEnv, Int, Option[Int]) = { val securityMgr = new SecurityManager(conf) - val (actorSystem, boundPort) = AkkaUtils.createActorSystem(systemName, host, port, conf = conf, - securityManager = securityMgr) - val actor = actorSystem.actorOf( - Props(classOf[Master], host, boundPort, webUiPort, securityMgr, conf), actorName) - val timeout = RpcUtils.askTimeout(conf) - val portsRequest = actor.ask(BoundPortsRequest)(timeout) - val portsResponse = Await.result(portsRequest, timeout).asInstanceOf[BoundPortsResponse] - (actorSystem, boundPort, portsResponse.webUIPort, portsResponse.restPort) + val rpcEnv = RpcEnv.create(SYSTEM_NAME, host, port, conf, securityMgr) + val masterEndpoint = rpcEnv.setupEndpoint(ENDPOINT_NAME, + new Master(rpcEnv, rpcEnv.address, webUiPort, securityMgr, conf)) + val portsResponse = masterEndpoint.askWithRetry[BoundPortsResponse](BoundPortsRequest) + (rpcEnv, portsResponse.webUIPort, portsResponse.restPort) } } diff --git a/core/src/main/scala/org/apache/spark/deploy/master/MasterMessages.scala b/core/src/main/scala/org/apache/spark/deploy/master/MasterMessages.scala index 15c6296888..68c937188b 100644 --- a/core/src/main/scala/org/apache/spark/deploy/master/MasterMessages.scala +++ b/core/src/main/scala/org/apache/spark/deploy/master/MasterMessages.scala @@ -28,7 +28,7 @@ private[master] object MasterMessages { case object RevokedLeadership - // Actor System to Master + // Master to itself case object CheckForWorkerTimeOut diff --git a/core/src/main/scala/org/apache/spark/deploy/master/WorkerInfo.scala b/core/src/main/scala/org/apache/spark/deploy/master/WorkerInfo.scala index 9b3d48c6ed..471811037e 100644 --- a/core/src/main/scala/org/apache/spark/deploy/master/WorkerInfo.scala +++ b/core/src/main/scala/org/apache/spark/deploy/master/WorkerInfo.scala @@ -19,9 +19,7 @@ package org.apache.spark.deploy.master import scala.collection.mutable -import akka.actor.ActorRef - -import org.apache.spark.annotation.DeveloperApi +import org.apache.spark.rpc.RpcEndpointRef import org.apache.spark.util.Utils private[spark] class WorkerInfo( @@ -30,7 +28,7 @@ private[spark] class WorkerInfo( val port: Int, val cores: Int, val memory: Int, - val actor: ActorRef, + val endpoint: RpcEndpointRef, val webUiPort: Int, val publicAddress: String) extends Serializable { diff --git a/core/src/main/scala/org/apache/spark/deploy/master/ZooKeeperLeaderElectionAgent.scala b/core/src/main/scala/org/apache/spark/deploy/master/ZooKeeperLeaderElectionAgent.scala index 52758d6a7c..6fdff86f66 100644 --- a/core/src/main/scala/org/apache/spark/deploy/master/ZooKeeperLeaderElectionAgent.scala +++ b/core/src/main/scala/org/apache/spark/deploy/master/ZooKeeperLeaderElectionAgent.scala @@ -17,10 +17,7 @@ package org.apache.spark.deploy.master -import akka.actor.ActorRef - import org.apache.spark.{Logging, SparkConf} -import org.apache.spark.deploy.master.MasterMessages._ import org.apache.curator.framework.CuratorFramework import org.apache.curator.framework.recipes.leader.{LeaderLatchListener, LeaderLatch} import org.apache.spark.deploy.SparkCuratorUtil diff --git a/core/src/main/scala/org/apache/spark/deploy/master/ui/ApplicationPage.scala b/core/src/main/scala/org/apache/spark/deploy/master/ui/ApplicationPage.scala index 06e265f99e..e28e7e379a 100644 --- a/core/src/main/scala/org/apache/spark/deploy/master/ui/ApplicationPage.scala +++ b/core/src/main/scala/org/apache/spark/deploy/master/ui/ApplicationPage.scala @@ -19,11 +19,8 @@ package org.apache.spark.deploy.master.ui import javax.servlet.http.HttpServletRequest -import scala.concurrent.Await import scala.xml.Node -import akka.pattern.ask - import org.apache.spark.deploy.ExecutorState import org.apache.spark.deploy.DeployMessages.{MasterStateResponse, RequestMasterState} import org.apache.spark.deploy.master.ExecutorDesc @@ -32,14 +29,12 @@ import org.apache.spark.util.Utils private[ui] class ApplicationPage(parent: MasterWebUI) extends WebUIPage("app") { - private val master = parent.masterActorRef - private val timeout = parent.timeout + private val master = parent.masterEndpointRef /** Executor details for a particular application */ def render(request: HttpServletRequest): Seq[Node] = { val appId = request.getParameter("appId") - val stateFuture = (master ? RequestMasterState)(timeout).mapTo[MasterStateResponse] - val state = Await.result(stateFuture, timeout) + val state = master.askWithRetry[MasterStateResponse](RequestMasterState) val app = state.activeApps.find(_.id == appId).getOrElse({ state.completedApps.find(_.id == appId).getOrElse(null) }) diff --git a/core/src/main/scala/org/apache/spark/deploy/master/ui/MasterPage.scala b/core/src/main/scala/org/apache/spark/deploy/master/ui/MasterPage.scala index 6a7c74020b..c3e20ebf8d 100644 --- a/core/src/main/scala/org/apache/spark/deploy/master/ui/MasterPage.scala +++ b/core/src/main/scala/org/apache/spark/deploy/master/ui/MasterPage.scala @@ -19,25 +19,21 @@ package org.apache.spark.deploy.master.ui import javax.servlet.http.HttpServletRequest -import scala.concurrent.Await import scala.xml.Node -import akka.pattern.ask import org.json4s.JValue import org.apache.spark.deploy.JsonProtocol -import org.apache.spark.deploy.DeployMessages.{RequestKillDriver, MasterStateResponse, RequestMasterState} +import org.apache.spark.deploy.DeployMessages.{KillDriverResponse, RequestKillDriver, MasterStateResponse, RequestMasterState} import org.apache.spark.deploy.master._ import org.apache.spark.ui.{WebUIPage, UIUtils} import org.apache.spark.util.Utils private[ui] class MasterPage(parent: MasterWebUI) extends WebUIPage("") { - private val master = parent.masterActorRef - private val timeout = parent.timeout + private val master = parent.masterEndpointRef def getMasterState: MasterStateResponse = { - val stateFuture = (master ? RequestMasterState)(timeout).mapTo[MasterStateResponse] - Await.result(stateFuture, timeout) + master.askWithRetry[MasterStateResponse](RequestMasterState) } override def renderJson(request: HttpServletRequest): JValue = { @@ -53,7 +49,9 @@ private[ui] class MasterPage(parent: MasterWebUI) extends WebUIPage("") { } def handleDriverKillRequest(request: HttpServletRequest): Unit = { - handleKillRequest(request, id => { master ! RequestKillDriver(id) }) + handleKillRequest(request, id => { + master.ask[KillDriverResponse](RequestKillDriver(id)) + }) } private def handleKillRequest(request: HttpServletRequest, action: String => Unit): Unit = { diff --git a/core/src/main/scala/org/apache/spark/deploy/master/ui/MasterWebUI.scala b/core/src/main/scala/org/apache/spark/deploy/master/ui/MasterWebUI.scala index 2111a8581f..6174fc11f8 100644 --- a/core/src/main/scala/org/apache/spark/deploy/master/ui/MasterWebUI.scala +++ b/core/src/main/scala/org/apache/spark/deploy/master/ui/MasterWebUI.scala @@ -23,7 +23,6 @@ import org.apache.spark.status.api.v1.{ApiRootResource, ApplicationsListResource UIRoot} import org.apache.spark.ui.{SparkUI, WebUI} import org.apache.spark.ui.JettyUtils._ -import org.apache.spark.util.RpcUtils /** * Web UI server for the standalone master. @@ -33,8 +32,7 @@ class MasterWebUI(val master: Master, requestedPort: Int) extends WebUI(master.securityMgr, requestedPort, master.conf, name = "MasterUI") with Logging with UIRoot { - val masterActorRef = master.self - val timeout = RpcUtils.askTimeout(master.conf) + val masterEndpointRef = master.self val killEnabled = master.conf.getBoolean("spark.ui.killEnabled", true) val masterPage = new MasterPage(this) diff --git a/core/src/main/scala/org/apache/spark/deploy/rest/StandaloneRestServer.scala b/core/src/main/scala/org/apache/spark/deploy/rest/StandaloneRestServer.scala index 502b9bb701..d5b9bcab14 100644 --- a/core/src/main/scala/org/apache/spark/deploy/rest/StandaloneRestServer.scala +++ b/core/src/main/scala/org/apache/spark/deploy/rest/StandaloneRestServer.scala @@ -20,10 +20,10 @@ package org.apache.spark.deploy.rest import java.io.File import javax.servlet.http.HttpServletResponse -import akka.actor.ActorRef import org.apache.spark.deploy.ClientArguments._ import org.apache.spark.deploy.{Command, DeployMessages, DriverDescription} -import org.apache.spark.util.{AkkaUtils, RpcUtils, Utils} +import org.apache.spark.rpc.RpcEndpointRef +import org.apache.spark.util.Utils import org.apache.spark.{SPARK_VERSION => sparkVersion, SparkConf} /** @@ -45,35 +45,34 @@ import org.apache.spark.{SPARK_VERSION => sparkVersion, SparkConf} * @param host the address this server should bind to * @param requestedPort the port this server will attempt to bind to * @param masterConf the conf used by the Master - * @param masterActor reference to the Master actor to which requests can be sent + * @param masterEndpoint reference to the Master endpoint to which requests can be sent * @param masterUrl the URL of the Master new drivers will attempt to connect to */ private[deploy] class StandaloneRestServer( host: String, requestedPort: Int, masterConf: SparkConf, - masterActor: ActorRef, + masterEndpoint: RpcEndpointRef, masterUrl: String) extends RestSubmissionServer(host, requestedPort, masterConf) { protected override val submitRequestServlet = - new StandaloneSubmitRequestServlet(masterActor, masterUrl, masterConf) + new StandaloneSubmitRequestServlet(masterEndpoint, masterUrl, masterConf) protected override val killRequestServlet = - new StandaloneKillRequestServlet(masterActor, masterConf) + new StandaloneKillRequestServlet(masterEndpoint, masterConf) protected override val statusRequestServlet = - new StandaloneStatusRequestServlet(masterActor, masterConf) + new StandaloneStatusRequestServlet(masterEndpoint, masterConf) } /** * A servlet for handling kill requests passed to the [[StandaloneRestServer]]. */ -private[rest] class StandaloneKillRequestServlet(masterActor: ActorRef, conf: SparkConf) +private[rest] class StandaloneKillRequestServlet(masterEndpoint: RpcEndpointRef, conf: SparkConf) extends KillRequestServlet { protected def handleKill(submissionId: String): KillSubmissionResponse = { - val askTimeout = RpcUtils.askTimeout(conf) - val response = AkkaUtils.askWithReply[DeployMessages.KillDriverResponse]( - DeployMessages.RequestKillDriver(submissionId), masterActor, askTimeout) + val response = masterEndpoint.askWithRetry[DeployMessages.KillDriverResponse]( + DeployMessages.RequestKillDriver(submissionId)) val k = new KillSubmissionResponse k.serverSparkVersion = sparkVersion k.message = response.message @@ -86,13 +85,12 @@ private[rest] class StandaloneKillRequestServlet(masterActor: ActorRef, conf: Sp /** * A servlet for handling status requests passed to the [[StandaloneRestServer]]. */ -private[rest] class StandaloneStatusRequestServlet(masterActor: ActorRef, conf: SparkConf) +private[rest] class StandaloneStatusRequestServlet(masterEndpoint: RpcEndpointRef, conf: SparkConf) extends StatusRequestServlet { protected def handleStatus(submissionId: String): SubmissionStatusResponse = { - val askTimeout = RpcUtils.askTimeout(conf) - val response = AkkaUtils.askWithReply[DeployMessages.DriverStatusResponse]( - DeployMessages.RequestDriverStatus(submissionId), masterActor, askTimeout) + val response = masterEndpoint.askWithRetry[DeployMessages.DriverStatusResponse]( + DeployMessages.RequestDriverStatus(submissionId)) val message = response.exception.map { s"Exception from the cluster:\n" + formatException(_) } val d = new SubmissionStatusResponse d.serverSparkVersion = sparkVersion @@ -110,7 +108,7 @@ private[rest] class StandaloneStatusRequestServlet(masterActor: ActorRef, conf: * A servlet for handling submit requests passed to the [[StandaloneRestServer]]. */ private[rest] class StandaloneSubmitRequestServlet( - masterActor: ActorRef, + masterEndpoint: RpcEndpointRef, masterUrl: String, conf: SparkConf) extends SubmitRequestServlet { @@ -175,10 +173,9 @@ private[rest] class StandaloneSubmitRequestServlet( responseServlet: HttpServletResponse): SubmitRestProtocolResponse = { requestMessage match { case submitRequest: CreateSubmissionRequest => - val askTimeout = RpcUtils.askTimeout(conf) val driverDescription = buildDriverDescription(submitRequest) - val response = AkkaUtils.askWithReply[DeployMessages.SubmitDriverResponse]( - DeployMessages.RequestSubmitDriver(driverDescription), masterActor, askTimeout) + val response = masterEndpoint.askWithRetry[DeployMessages.SubmitDriverResponse]( + DeployMessages.RequestSubmitDriver(driverDescription)) val submitResponse = new CreateSubmissionResponse submitResponse.serverSparkVersion = sparkVersion submitResponse.message = response.message diff --git a/core/src/main/scala/org/apache/spark/deploy/worker/DriverRunner.scala b/core/src/main/scala/org/apache/spark/deploy/worker/DriverRunner.scala index 1386055eb8..ec51c3d935 100644 --- a/core/src/main/scala/org/apache/spark/deploy/worker/DriverRunner.scala +++ b/core/src/main/scala/org/apache/spark/deploy/worker/DriverRunner.scala @@ -21,7 +21,6 @@ import java.io._ import scala.collection.JavaConversions._ -import akka.actor.ActorRef import com.google.common.base.Charsets.UTF_8 import com.google.common.io.Files import org.apache.hadoop.fs.Path @@ -31,6 +30,7 @@ import org.apache.spark.deploy.{DriverDescription, SparkHadoopUtil} import org.apache.spark.deploy.DeployMessages.DriverStateChanged import org.apache.spark.deploy.master.DriverState import org.apache.spark.deploy.master.DriverState.DriverState +import org.apache.spark.rpc.RpcEndpointRef import org.apache.spark.util.{Utils, Clock, SystemClock} /** @@ -43,7 +43,7 @@ private[deploy] class DriverRunner( val workDir: File, val sparkHome: File, val driverDesc: DriverDescription, - val worker: ActorRef, + val worker: RpcEndpointRef, val workerUrl: String, val securityManager: SecurityManager) extends Logging { @@ -107,7 +107,7 @@ private[deploy] class DriverRunner( finalState = Some(state) - worker ! DriverStateChanged(driverId, state, finalException) + worker.send(DriverStateChanged(driverId, state, finalException)) } }.start() } diff --git a/core/src/main/scala/org/apache/spark/deploy/worker/ExecutorRunner.scala b/core/src/main/scala/org/apache/spark/deploy/worker/ExecutorRunner.scala index fff17e1095..29a5042285 100644 --- a/core/src/main/scala/org/apache/spark/deploy/worker/ExecutorRunner.scala +++ b/core/src/main/scala/org/apache/spark/deploy/worker/ExecutorRunner.scala @@ -21,10 +21,10 @@ import java.io._ import scala.collection.JavaConversions._ -import akka.actor.ActorRef import com.google.common.base.Charsets.UTF_8 import com.google.common.io.Files +import org.apache.spark.rpc.RpcEndpointRef import org.apache.spark.{SecurityManager, SparkConf, Logging} import org.apache.spark.deploy.{ApplicationDescription, ExecutorState} import org.apache.spark.deploy.DeployMessages.ExecutorStateChanged @@ -41,7 +41,7 @@ private[deploy] class ExecutorRunner( val appDesc: ApplicationDescription, val cores: Int, val memory: Int, - val worker: ActorRef, + val worker: RpcEndpointRef, val workerId: String, val host: String, val webUiPort: Int, @@ -91,7 +91,7 @@ private[deploy] class ExecutorRunner( process.destroy() exitCode = Some(process.waitFor()) } - worker ! ExecutorStateChanged(appId, execId, state, message, exitCode) + worker.send(ExecutorStateChanged(appId, execId, state, message, exitCode)) } /** Stop this executor runner, including killing the process it launched */ @@ -159,7 +159,7 @@ private[deploy] class ExecutorRunner( val exitCode = process.waitFor() state = ExecutorState.EXITED val message = "Command exited with code " + exitCode - worker ! ExecutorStateChanged(appId, execId, state, Some(message), Some(exitCode)) + worker.send(ExecutorStateChanged(appId, execId, state, Some(message), Some(exitCode))) } catch { case interrupted: InterruptedException => { logInfo("Runner thread for executor " + fullId + " interrupted") diff --git a/core/src/main/scala/org/apache/spark/deploy/worker/Worker.scala b/core/src/main/scala/org/apache/spark/deploy/worker/Worker.scala index ebc6cd76c6..82e9578bbc 100755 --- a/core/src/main/scala/org/apache/spark/deploy/worker/Worker.scala +++ b/core/src/main/scala/org/apache/spark/deploy/worker/Worker.scala @@ -21,15 +21,14 @@ import java.io.File import java.io.IOException import java.text.SimpleDateFormat import java.util.{UUID, Date} +import java.util.concurrent._ +import java.util.concurrent.{Future => JFuture, ScheduledFuture => JScheduledFuture} import scala.collection.JavaConversions._ import scala.collection.mutable.{HashMap, HashSet} -import scala.concurrent.duration._ -import scala.language.postfixOps +import scala.concurrent.ExecutionContext import scala.util.Random - -import akka.actor._ -import akka.remote.{DisassociatedEvent, RemotingLifecycleEvent} +import scala.util.control.NonFatal import org.apache.spark.{Logging, SecurityManager, SparkConf} import org.apache.spark.deploy.{Command, ExecutorDescription, ExecutorState} @@ -38,32 +37,39 @@ import org.apache.spark.deploy.ExternalShuffleService import org.apache.spark.deploy.master.{DriverState, Master} import org.apache.spark.deploy.worker.ui.WorkerWebUI import org.apache.spark.metrics.MetricsSystem -import org.apache.spark.util.{ActorLogReceive, AkkaUtils, SignalLogger, Utils} +import org.apache.spark.rpc._ +import org.apache.spark.util.{ThreadUtils, SignalLogger, Utils} -/** - * @param masterAkkaUrls Each url should be a valid akka url. - */ private[worker] class Worker( - host: String, - port: Int, + override val rpcEnv: RpcEnv, webUiPort: Int, cores: Int, memory: Int, - masterAkkaUrls: Array[String], - actorSystemName: String, - actorName: String, + masterRpcAddresses: Array[RpcAddress], + systemName: String, + endpointName: String, workDirPath: String = null, val conf: SparkConf, val securityMgr: SecurityManager) - extends Actor with ActorLogReceive with Logging { - import context.dispatcher + extends ThreadSafeRpcEndpoint with Logging { + + private val host = rpcEnv.address.host + private val port = rpcEnv.address.port Utils.checkHost(host, "Expected hostname") assert (port > 0) + // A scheduled executor used to send messages at the specified time. + private val forwordMessageScheduler = + ThreadUtils.newDaemonSingleThreadScheduledExecutor("worker-forward-message-scheduler") + + // A separated thread to clean up the workDir. Used to provide the implicit parameter of `Future` + // methods. + private val cleanupThreadExecutor = ExecutionContext.fromExecutorService( + ThreadUtils.newDaemonSingleThreadExecutor("worker-cleanup-thread")) + // For worker and executor IDs private def createDateFormat = new SimpleDateFormat("yyyyMMddHHmmss") - // Send a heartbeat every (heartbeat timeout) / 4 milliseconds private val HEARTBEAT_MILLIS = conf.getLong("spark.worker.timeout", 60) * 1000 / 4 @@ -79,32 +85,26 @@ private[worker] class Worker( val randomNumberGenerator = new Random(UUID.randomUUID.getMostSignificantBits) randomNumberGenerator.nextDouble + FUZZ_MULTIPLIER_INTERVAL_LOWER_BOUND } - private val INITIAL_REGISTRATION_RETRY_INTERVAL = (math.round(10 * - REGISTRATION_RETRY_FUZZ_MULTIPLIER)).seconds - private val PROLONGED_REGISTRATION_RETRY_INTERVAL = (math.round(60 - * REGISTRATION_RETRY_FUZZ_MULTIPLIER)).seconds + private val INITIAL_REGISTRATION_RETRY_INTERVAL_SECONDS = (math.round(10 * + REGISTRATION_RETRY_FUZZ_MULTIPLIER)) + private val PROLONGED_REGISTRATION_RETRY_INTERVAL_SECONDS = (math.round(60 + * REGISTRATION_RETRY_FUZZ_MULTIPLIER)) private val CLEANUP_ENABLED = conf.getBoolean("spark.worker.cleanup.enabled", false) // How often worker will clean up old app folders private val CLEANUP_INTERVAL_MILLIS = conf.getLong("spark.worker.cleanup.interval", 60 * 30) * 1000 // TTL for app folders/data; after TTL expires it will be cleaned up - private val APP_DATA_RETENTION_SECS = + private val APP_DATA_RETENTION_SECONDS = conf.getLong("spark.worker.cleanup.appDataTtl", 7 * 24 * 3600) private val testing: Boolean = sys.props.contains("spark.testing") - private var master: ActorSelection = null - private var masterAddress: Address = null + private var master: Option[RpcEndpointRef] = None private var activeMasterUrl: String = "" private[worker] var activeMasterWebUiUrl : String = "" - private val akkaUrl = AkkaUtils.address( - AkkaUtils.protocol(context.system), - actorSystemName, - host, - port, - actorName) - @volatile private var registered = false - @volatile private var connected = false + private val workerUri = rpcEnv.uriOf(systemName, rpcEnv.address, endpointName) + private var registered = false + private var connected = false private val workerId = generateWorkerId() private val sparkHome = if (testing) { @@ -136,7 +136,18 @@ private[worker] class Worker( private val metricsSystem = MetricsSystem.createMetricsSystem("worker", conf, securityMgr) private val workerSource = new WorkerSource(this) - private var registrationRetryTimer: Option[Cancellable] = None + private var registerMasterFutures: Array[JFuture[_]] = null + private var registrationRetryTimer: Option[JScheduledFuture[_]] = None + + // A thread pool for registering with masters. Because registering with a master is a blocking + // action, this thread pool must be able to create "masterRpcAddresses.size" threads at the same + // time so that we can register with all masters. + private val registerMasterThreadPool = new ThreadPoolExecutor( + 0, + masterRpcAddresses.size, // Make sure we can register with all masters at the same time + 60L, TimeUnit.SECONDS, + new SynchronousQueue[Runnable](), + ThreadUtils.namedThreadFactory("worker-register-master-threadpool")) var coresUsed = 0 var memoryUsed = 0 @@ -162,14 +173,13 @@ private[worker] class Worker( } } - override def preStart() { + override def onStart() { assert(!registered) logInfo("Starting Spark worker %s:%d with %d cores, %s RAM".format( host, port, cores, Utils.megabytesToString(memory))) logInfo(s"Running Spark version ${org.apache.spark.SPARK_VERSION}") logInfo("Spark home: " + sparkHome) createWorkDir() - context.system.eventStream.subscribe(self, classOf[RemotingLifecycleEvent]) shuffleService.startIfEnabled() webUi = new WorkerWebUI(this, workDir, webUiPort) webUi.bind() @@ -181,24 +191,32 @@ private[worker] class Worker( metricsSystem.getServletHandlers.foreach(webUi.attachHandler) } - private def changeMaster(url: String, uiUrl: String) { + private def changeMaster(masterRef: RpcEndpointRef, uiUrl: String) { // activeMasterUrl it's a valid Spark url since we receive it from master. - activeMasterUrl = url + activeMasterUrl = masterRef.address.toSparkURL activeMasterWebUiUrl = uiUrl - master = context.actorSelection( - Master.toAkkaUrl(activeMasterUrl, AkkaUtils.protocol(context.system))) - masterAddress = Master.toAkkaAddress(activeMasterUrl, AkkaUtils.protocol(context.system)) + master = Some(masterRef) connected = true // Cancel any outstanding re-registration attempts because we found a new master - registrationRetryTimer.foreach(_.cancel()) - registrationRetryTimer = None + cancelLastRegistrationRetry() } - private def tryRegisterAllMasters() { - for (masterAkkaUrl <- masterAkkaUrls) { - logInfo("Connecting to master " + masterAkkaUrl + "...") - val actor = context.actorSelection(masterAkkaUrl) - actor ! RegisterWorker(workerId, host, port, cores, memory, webUi.boundPort, publicAddress) + private def tryRegisterAllMasters(): Array[JFuture[_]] = { + masterRpcAddresses.map { masterAddress => + registerMasterThreadPool.submit(new Runnable { + override def run(): Unit = { + try { + logInfo("Connecting to master " + masterAddress + "...") + val masterEndpoint = + rpcEnv.setupEndpointRef(Master.SYSTEM_NAME, masterAddress, Master.ENDPOINT_NAME) + masterEndpoint.send(RegisterWorker( + workerId, host, port, self, cores, memory, webUi.boundPort, publicAddress)) + } catch { + case ie: InterruptedException => // Cancelled + case NonFatal(e) => logWarning(s"Failed to connect to master $masterAddress", e) + } + } + }) } } @@ -211,8 +229,7 @@ private[worker] class Worker( Utils.tryOrExit { connectionAttemptCount += 1 if (registered) { - registrationRetryTimer.foreach(_.cancel()) - registrationRetryTimer = None + cancelLastRegistrationRetry() } else if (connectionAttemptCount <= TOTAL_REGISTRATION_RETRIES) { logInfo(s"Retrying connection to master (attempt # $connectionAttemptCount)") /** @@ -235,21 +252,48 @@ private[worker] class Worker( * still not safe if the old master recovers within this interval, but this is a much * less likely scenario. */ - if (master != null) { - master ! RegisterWorker( - workerId, host, port, cores, memory, webUi.boundPort, publicAddress) - } else { - // We are retrying the initial registration - tryRegisterAllMasters() + master match { + case Some(masterRef) => + // registered == false && master != None means we lost the connection to master, so + // masterRef cannot be used and we need to recreate it again. Note: we must not set + // master to None due to the above comments. + if (registerMasterFutures != null) { + registerMasterFutures.foreach(_.cancel(true)) + } + val masterAddress = masterRef.address + registerMasterFutures = Array(registerMasterThreadPool.submit(new Runnable { + override def run(): Unit = { + try { + logInfo("Connecting to master " + masterAddress + "...") + val masterEndpoint = + rpcEnv.setupEndpointRef(Master.SYSTEM_NAME, masterAddress, Master.ENDPOINT_NAME) + masterEndpoint.send(RegisterWorker( + workerId, host, port, self, cores, memory, webUi.boundPort, publicAddress)) + } catch { + case ie: InterruptedException => // Cancelled + case NonFatal(e) => logWarning(s"Failed to connect to master $masterAddress", e) + } + } + })) + case None => + if (registerMasterFutures != null) { + registerMasterFutures.foreach(_.cancel(true)) + } + // We are retrying the initial registration + registerMasterFutures = tryRegisterAllMasters() } // We have exceeded the initial registration retry threshold // All retries from now on should use a higher interval if (connectionAttemptCount == INITIAL_REGISTRATION_RETRIES) { - registrationRetryTimer.foreach(_.cancel()) - registrationRetryTimer = Some { - context.system.scheduler.schedule(PROLONGED_REGISTRATION_RETRY_INTERVAL, - PROLONGED_REGISTRATION_RETRY_INTERVAL, self, ReregisterWithMaster) - } + registrationRetryTimer.foreach(_.cancel(true)) + registrationRetryTimer = Some( + forwordMessageScheduler.scheduleAtFixedRate(new Runnable { + override def run(): Unit = Utils.tryLogNonFatalError { + self.send(ReregisterWithMaster) + } + }, PROLONGED_REGISTRATION_RETRY_INTERVAL_SECONDS, + PROLONGED_REGISTRATION_RETRY_INTERVAL_SECONDS, + TimeUnit.SECONDS)) } } else { logError("All masters are unresponsive! Giving up.") @@ -258,41 +302,67 @@ private[worker] class Worker( } } + /** + * Cancel last registeration retry, or do nothing if no retry + */ + private def cancelLastRegistrationRetry(): Unit = { + if (registerMasterFutures != null) { + registerMasterFutures.foreach(_.cancel(true)) + registerMasterFutures = null + } + registrationRetryTimer.foreach(_.cancel(true)) + registrationRetryTimer = None + } + private def registerWithMaster() { - // DisassociatedEvent may be triggered multiple times, so don't attempt registration + // onDisconnected may be triggered multiple times, so don't attempt registration // if there are outstanding registration attempts scheduled. registrationRetryTimer match { case None => registered = false - tryRegisterAllMasters() + registerMasterFutures = tryRegisterAllMasters() connectionAttemptCount = 0 - registrationRetryTimer = Some { - context.system.scheduler.schedule(INITIAL_REGISTRATION_RETRY_INTERVAL, - INITIAL_REGISTRATION_RETRY_INTERVAL, self, ReregisterWithMaster) - } + registrationRetryTimer = Some(forwordMessageScheduler.scheduleAtFixedRate( + new Runnable { + override def run(): Unit = Utils.tryLogNonFatalError { + self.send(ReregisterWithMaster) + } + }, + INITIAL_REGISTRATION_RETRY_INTERVAL_SECONDS, + INITIAL_REGISTRATION_RETRY_INTERVAL_SECONDS, + TimeUnit.SECONDS)) case Some(_) => logInfo("Not spawning another attempt to register with the master, since there is an" + " attempt scheduled already.") } } - override def receiveWithLogging: PartialFunction[Any, Unit] = { - case RegisteredWorker(masterUrl, masterWebUiUrl) => - logInfo("Successfully registered with master " + masterUrl) + override def receive: PartialFunction[Any, Unit] = { + case RegisteredWorker(masterRef, masterWebUiUrl) => + logInfo("Successfully registered with master " + masterRef.address.toSparkURL) registered = true - changeMaster(masterUrl, masterWebUiUrl) - context.system.scheduler.schedule(0 millis, HEARTBEAT_MILLIS millis, self, SendHeartbeat) + changeMaster(masterRef, masterWebUiUrl) + forwordMessageScheduler.scheduleAtFixedRate(new Runnable { + override def run(): Unit = Utils.tryLogNonFatalError { + self.send(SendHeartbeat) + } + }, 0, HEARTBEAT_MILLIS, TimeUnit.MILLISECONDS) if (CLEANUP_ENABLED) { logInfo(s"Worker cleanup enabled; old application directories will be deleted in: $workDir") - context.system.scheduler.schedule(CLEANUP_INTERVAL_MILLIS millis, - CLEANUP_INTERVAL_MILLIS millis, self, WorkDirCleanup) + forwordMessageScheduler.scheduleAtFixedRate(new Runnable { + override def run(): Unit = Utils.tryLogNonFatalError { + self.send(WorkDirCleanup) + } + }, CLEANUP_INTERVAL_MILLIS, CLEANUP_INTERVAL_MILLIS, TimeUnit.MILLISECONDS) } case SendHeartbeat => - if (connected) { master ! Heartbeat(workerId) } + if (connected) { sendToMaster(Heartbeat(workerId, self)) } case WorkDirCleanup => // Spin up a separate thread (in a future) to do the dir cleanup; don't tie up worker actor + // Copy ids so that it can be used in the cleanup thread. + val appIds = executors.values.map(_.appId).toSet val cleanupFuture = concurrent.future { val appDirs = workDir.listFiles() if (appDirs == null) { @@ -302,27 +372,27 @@ private[worker] class Worker( // the directory is used by an application - check that the application is not running // when cleaning up val appIdFromDir = dir.getName - val isAppStillRunning = executors.values.map(_.appId).contains(appIdFromDir) + val isAppStillRunning = appIds.contains(appIdFromDir) dir.isDirectory && !isAppStillRunning && - !Utils.doesDirectoryContainAnyNewFiles(dir, APP_DATA_RETENTION_SECS) + !Utils.doesDirectoryContainAnyNewFiles(dir, APP_DATA_RETENTION_SECONDS) }.foreach { dir => logInfo(s"Removing directory: ${dir.getPath}") Utils.deleteRecursively(dir) } - } + }(cleanupThreadExecutor) - cleanupFuture onFailure { + cleanupFuture.onFailure { case e: Throwable => logError("App dir cleanup failed: " + e.getMessage, e) - } + }(cleanupThreadExecutor) - case MasterChanged(masterUrl, masterWebUiUrl) => - logInfo("Master has changed, new master is at " + masterUrl) - changeMaster(masterUrl, masterWebUiUrl) + case MasterChanged(masterRef, masterWebUiUrl) => + logInfo("Master has changed, new master is at " + masterRef.address.toSparkURL) + changeMaster(masterRef, masterWebUiUrl) val execs = executors.values. map(e => new ExecutorDescription(e.appId, e.execId, e.cores, e.state)) - sender ! WorkerSchedulerStateResponse(workerId, execs.toList, drivers.keys.toSeq) + masterRef.send(WorkerSchedulerStateResponse(workerId, execs.toList, drivers.keys.toSeq)) case RegisterWorkerFailed(message) => if (!registered) { @@ -369,14 +439,14 @@ private[worker] class Worker( publicAddress, sparkHome, executorDir, - akkaUrl, + workerUri, conf, appLocalDirs, ExecutorState.LOADING) executors(appId + "/" + execId) = manager manager.start() coresUsed += cores_ memoryUsed += memory_ - master ! ExecutorStateChanged(appId, execId, manager.state, None, None) + sendToMaster(ExecutorStateChanged(appId, execId, manager.state, None, None)) } catch { case e: Exception => { logError(s"Failed to launch executor $appId/$execId for ${appDesc.name}.", e) @@ -384,14 +454,14 @@ private[worker] class Worker( executors(appId + "/" + execId).kill() executors -= appId + "/" + execId } - master ! ExecutorStateChanged(appId, execId, ExecutorState.FAILED, - Some(e.toString), None) + sendToMaster(ExecutorStateChanged(appId, execId, ExecutorState.FAILED, + Some(e.toString), None)) } } } - case ExecutorStateChanged(appId, execId, state, message, exitStatus) => - master ! ExecutorStateChanged(appId, execId, state, message, exitStatus) + case executorStateChanged @ ExecutorStateChanged(appId, execId, state, message, exitStatus) => + sendToMaster(executorStateChanged) val fullId = appId + "/" + execId if (ExecutorState.isFinished(state)) { executors.get(fullId) match { @@ -434,7 +504,7 @@ private[worker] class Worker( sparkHome, driverDesc.copy(command = Worker.maybeUpdateSSLSettings(driverDesc.command, conf)), self, - akkaUrl, + workerUri, securityMgr) drivers(driverId) = driver driver.start() @@ -453,7 +523,7 @@ private[worker] class Worker( } } - case DriverStateChanged(driverId, state, exception) => { + case driverStageChanged @ DriverStateChanged(driverId, state, exception) => { state match { case DriverState.ERROR => logWarning(s"Driver $driverId failed with unrecoverable exception: ${exception.get}") @@ -466,23 +536,13 @@ private[worker] class Worker( case _ => logDebug(s"Driver $driverId changed state to $state") } - master ! DriverStateChanged(driverId, state, exception) + sendToMaster(driverStageChanged) val driver = drivers.remove(driverId).get finishedDrivers(driverId) = driver memoryUsed -= driver.driverDesc.mem coresUsed -= driver.driverDesc.cores } - case x: DisassociatedEvent if x.remoteAddress == masterAddress => - logInfo(s"$x Disassociated !") - masterDisconnected() - - case RequestWorkerState => - sender ! WorkerStateResponse(host, port, workerId, executors.values.toList, - finishedExecutors.values.toList, drivers.values.toList, - finishedDrivers.values.toList, activeMasterUrl, cores, memory, - coresUsed, memoryUsed, activeMasterWebUiUrl) - case ReregisterWithMaster => reregisterWithMaster() @@ -491,6 +551,21 @@ private[worker] class Worker( maybeCleanupApplication(id) } + override def receiveAndReply(context: RpcCallContext): PartialFunction[Any, Unit] = { + case RequestWorkerState => + context.reply(WorkerStateResponse(host, port, workerId, executors.values.toList, + finishedExecutors.values.toList, drivers.values.toList, + finishedDrivers.values.toList, activeMasterUrl, cores, memory, + coresUsed, memoryUsed, activeMasterWebUiUrl)) + } + + override def onDisconnected(remoteAddress: RpcAddress): Unit = { + if (master.exists(_.address == remoteAddress)) { + logInfo(s"$remoteAddress Disassociated !") + masterDisconnected() + } + } + private def masterDisconnected() { logError("Connection to master failed! Waiting for master to reconnect...") connected = false @@ -510,13 +585,29 @@ private[worker] class Worker( } } + /** + * Send a message to the current master. If we have not yet registered successfully with any + * master, the message will be dropped. + */ + private def sendToMaster(message: Any): Unit = { + master match { + case Some(masterRef) => masterRef.send(message) + case None => + logWarning( + s"Dropping $message because the connection to master has not yet been established") + } + } + private def generateWorkerId(): String = { "worker-%s-%s-%d".format(createDateFormat.format(new Date), host, port) } - override def postStop() { + override def onStop() { + cleanupThreadExecutor.shutdownNow() metricsSystem.report() - registrationRetryTimer.foreach(_.cancel()) + cancelLastRegistrationRetry() + forwordMessageScheduler.shutdownNow() + registerMasterThreadPool.shutdownNow() executors.values.foreach(_.kill()) drivers.values.foreach(_.kill()) shuffleService.stop() @@ -530,12 +621,12 @@ private[deploy] object Worker extends Logging { SignalLogger.register(log) val conf = new SparkConf val args = new WorkerArguments(argStrings, conf) - val (actorSystem, _) = startSystemAndActor(args.host, args.port, args.webUiPort, args.cores, + val rpcEnv = startRpcEnvAndEndpoint(args.host, args.port, args.webUiPort, args.cores, args.memory, args.masters, args.workDir) - actorSystem.awaitTermination() + rpcEnv.awaitTermination() } - def startSystemAndActor( + def startRpcEnvAndEndpoint( host: String, port: Int, webUiPort: Int, @@ -544,18 +635,17 @@ private[deploy] object Worker extends Logging { masterUrls: Array[String], workDir: String, workerNumber: Option[Int] = None, - conf: SparkConf = new SparkConf): (ActorSystem, Int) = { + conf: SparkConf = new SparkConf): RpcEnv = { // The LocalSparkCluster runs multiple local sparkWorkerX actor systems val systemName = "sparkWorker" + workerNumber.map(_.toString).getOrElse("") val actorName = "Worker" val securityMgr = new SecurityManager(conf) - val (actorSystem, boundPort) = AkkaUtils.createActorSystem(systemName, host, port, - conf = conf, securityManager = securityMgr) - val masterAkkaUrls = masterUrls.map(Master.toAkkaUrl(_, AkkaUtils.protocol(actorSystem))) - actorSystem.actorOf(Props(classOf[Worker], host, boundPort, webUiPort, cores, memory, - masterAkkaUrls, systemName, actorName, workDir, conf, securityMgr), name = actorName) - (actorSystem, boundPort) + val rpcEnv = RpcEnv.create(systemName, host, port, conf, securityMgr) + val masterAddresses = masterUrls.map(RpcAddress.fromSparkURL(_)) + rpcEnv.setupEndpoint(actorName, new Worker(rpcEnv, webUiPort, cores, memory, masterAddresses, + systemName, actorName, workDir, conf, securityMgr)) + rpcEnv } def isUseLocalNodeSSLConfig(cmd: Command): Boolean = { diff --git a/core/src/main/scala/org/apache/spark/deploy/worker/WorkerWatcher.scala b/core/src/main/scala/org/apache/spark/deploy/worker/WorkerWatcher.scala index 83fb991891..fae5640b9a 100644 --- a/core/src/main/scala/org/apache/spark/deploy/worker/WorkerWatcher.scala +++ b/core/src/main/scala/org/apache/spark/deploy/worker/WorkerWatcher.scala @@ -18,7 +18,6 @@ package org.apache.spark.deploy.worker import org.apache.spark.Logging -import org.apache.spark.deploy.DeployMessages.SendHeartbeat import org.apache.spark.rpc._ /** diff --git a/core/src/main/scala/org/apache/spark/deploy/worker/ui/WorkerPage.scala b/core/src/main/scala/org/apache/spark/deploy/worker/ui/WorkerPage.scala index 9f9f27d71e..fd905feb97 100644 --- a/core/src/main/scala/org/apache/spark/deploy/worker/ui/WorkerPage.scala +++ b/core/src/main/scala/org/apache/spark/deploy/worker/ui/WorkerPage.scala @@ -17,10 +17,8 @@ package org.apache.spark.deploy.worker.ui -import scala.concurrent.Await import scala.xml.Node -import akka.pattern.ask import javax.servlet.http.HttpServletRequest import org.json4s.JValue @@ -32,18 +30,15 @@ import org.apache.spark.ui.{WebUIPage, UIUtils} import org.apache.spark.util.Utils private[ui] class WorkerPage(parent: WorkerWebUI) extends WebUIPage("") { - private val workerActor = parent.worker.self - private val timeout = parent.timeout + private val workerEndpoint = parent.worker.self override def renderJson(request: HttpServletRequest): JValue = { - val stateFuture = (workerActor ? RequestWorkerState)(timeout).mapTo[WorkerStateResponse] - val workerState = Await.result(stateFuture, timeout) + val workerState = workerEndpoint.askWithRetry[WorkerStateResponse](RequestWorkerState) JsonProtocol.writeWorkerState(workerState) } def render(request: HttpServletRequest): Seq[Node] = { - val stateFuture = (workerActor ? RequestWorkerState)(timeout).mapTo[WorkerStateResponse] - val workerState = Await.result(stateFuture, timeout) + val workerState = workerEndpoint.askWithRetry[WorkerStateResponse](RequestWorkerState) val executorHeaders = Seq("ExecutorID", "Cores", "State", "Memory", "Job Details", "Logs") val runningExecutors = workerState.executors diff --git a/core/src/main/scala/org/apache/spark/rpc/RpcEnv.scala b/core/src/main/scala/org/apache/spark/rpc/RpcEnv.scala index 12b6b28d4d..3b6938ec63 100644 --- a/core/src/main/scala/org/apache/spark/rpc/RpcEnv.scala +++ b/core/src/main/scala/org/apache/spark/rpc/RpcEnv.scala @@ -158,6 +158,8 @@ private[spark] case class RpcAddress(host: String, port: Int) { val hostPort: String = host + ":" + port override val toString: String = hostPort + + def toSparkURL: String = "spark://" + hostPort } diff --git a/core/src/main/scala/org/apache/spark/rpc/akka/AkkaRpcEnv.scala b/core/src/main/scala/org/apache/spark/rpc/akka/AkkaRpcEnv.scala index 0161962cde..31ebe5ac5b 100644 --- a/core/src/main/scala/org/apache/spark/rpc/akka/AkkaRpcEnv.scala +++ b/core/src/main/scala/org/apache/spark/rpc/akka/AkkaRpcEnv.scala @@ -180,10 +180,10 @@ private[spark] class AkkaRpcEnv private[akka] ( }) } catch { case NonFatal(e) => - if (needReply) { - // If the sender asks a reply, we should send the error back to the sender - _sender ! AkkaFailure(e) - } else { + _sender ! AkkaFailure(e) + if (!needReply) { + // If the sender does not require a reply, it may not handle the exception. So we rethrow + // "e" to make sure it will be processed. throw e } } diff --git a/core/src/main/scala/org/apache/spark/scheduler/cluster/SparkDeploySchedulerBackend.scala b/core/src/main/scala/org/apache/spark/scheduler/cluster/SparkDeploySchedulerBackend.scala index ccf1dc5af6..687ae96204 100644 --- a/core/src/main/scala/org/apache/spark/scheduler/cluster/SparkDeploySchedulerBackend.scala +++ b/core/src/main/scala/org/apache/spark/scheduler/cluster/SparkDeploySchedulerBackend.scala @@ -85,7 +85,7 @@ private[spark] class SparkDeploySchedulerBackend( val coresPerExecutor = conf.getOption("spark.executor.cores").map(_.toInt) val appDesc = new ApplicationDescription(sc.appName, maxCores, sc.executorMemory, command, appUIAddress, sc.eventLogDir, sc.eventLogCodec, coresPerExecutor) - client = new AppClient(sc.env.actorSystem, masters, appDesc, this, conf) + client = new AppClient(sc.env.rpcEnv, masters, appDesc, this, conf) client.start() waitForRegistration() } diff --git a/core/src/test/scala/org/apache/spark/deploy/master/MasterSuite.scala b/core/src/test/scala/org/apache/spark/deploy/master/MasterSuite.scala index 014e87bb40..9cb6dd43ba 100644 --- a/core/src/test/scala/org/apache/spark/deploy/master/MasterSuite.scala +++ b/core/src/test/scala/org/apache/spark/deploy/master/MasterSuite.scala @@ -19,63 +19,21 @@ package org.apache.spark.deploy.master import java.util.Date -import scala.concurrent.Await import scala.concurrent.duration._ import scala.io.Source import scala.language.postfixOps -import akka.actor.Address import org.json4s._ import org.json4s.jackson.JsonMethods._ import org.scalatest.Matchers import org.scalatest.concurrent.Eventually import other.supplier.{CustomPersistenceEngine, CustomRecoveryModeFactory} -import org.apache.spark.{SparkConf, SparkException, SparkFunSuite} +import org.apache.spark.{SparkConf, SparkFunSuite} import org.apache.spark.deploy._ class MasterSuite extends SparkFunSuite with Matchers with Eventually { - test("toAkkaUrl") { - val conf = new SparkConf(loadDefaults = false) - val akkaUrl = Master.toAkkaUrl("spark://1.2.3.4:1234", "akka.tcp") - assert("akka.tcp://sparkMaster@1.2.3.4:1234/user/Master" === akkaUrl) - } - - test("toAkkaUrl with SSL") { - val conf = new SparkConf(loadDefaults = false) - val akkaUrl = Master.toAkkaUrl("spark://1.2.3.4:1234", "akka.ssl.tcp") - assert("akka.ssl.tcp://sparkMaster@1.2.3.4:1234/user/Master" === akkaUrl) - } - - test("toAkkaUrl: a typo url") { - val conf = new SparkConf(loadDefaults = false) - val e = intercept[SparkException] { - Master.toAkkaUrl("spark://1.2. 3.4:1234", "akka.tcp") - } - assert("Invalid master URL: spark://1.2. 3.4:1234" === e.getMessage) - } - - test("toAkkaAddress") { - val conf = new SparkConf(loadDefaults = false) - val address = Master.toAkkaAddress("spark://1.2.3.4:1234", "akka.tcp") - assert(Address("akka.tcp", "sparkMaster", "1.2.3.4", 1234) === address) - } - - test("toAkkaAddress with SSL") { - val conf = new SparkConf(loadDefaults = false) - val address = Master.toAkkaAddress("spark://1.2.3.4:1234", "akka.ssl.tcp") - assert(Address("akka.ssl.tcp", "sparkMaster", "1.2.3.4", 1234) === address) - } - - test("toAkkaAddress: a typo url") { - val conf = new SparkConf(loadDefaults = false) - val e = intercept[SparkException] { - Master.toAkkaAddress("spark://1.2. 3.4:1234", "akka.tcp") - } - assert("Invalid master URL: spark://1.2. 3.4:1234" === e.getMessage) - } - test("can use a custom recovery mode factory") { val conf = new SparkConf(loadDefaults = false) conf.set("spark.deploy.recoveryMode", "CUSTOM") @@ -129,16 +87,16 @@ class MasterSuite extends SparkFunSuite with Matchers with Eventually { port = 10000, cores = 0, memory = 0, - actor = null, + endpoint = null, webUiPort = 0, publicAddress = "" ) - val (actorSystem, port, uiPort, restPort) = - Master.startSystemAndActor("127.0.0.1", 7077, 8080, conf) + val (rpcEnv, uiPort, restPort) = + Master.startRpcEnvAndEndpoint("127.0.0.1", 7077, 8080, conf) try { - Await.result(actorSystem.actorSelection("/user/Master").resolveOne(10 seconds), 10 seconds) + rpcEnv.setupEndpointRef(Master.SYSTEM_NAME, rpcEnv.address, Master.ENDPOINT_NAME) CustomPersistenceEngine.lastInstance.isDefined shouldBe true val persistenceEngine = CustomPersistenceEngine.lastInstance.get @@ -154,8 +112,8 @@ class MasterSuite extends SparkFunSuite with Matchers with Eventually { workers.map(_.id) should contain(workerToPersist.id) } finally { - actorSystem.shutdown() - actorSystem.awaitTermination() + rpcEnv.shutdown() + rpcEnv.awaitTermination() } CustomRecoveryModeFactory.instantiationAttempts should be > instantiationAttempts diff --git a/core/src/test/scala/org/apache/spark/deploy/rest/StandaloneRestSubmitSuite.scala b/core/src/test/scala/org/apache/spark/deploy/rest/StandaloneRestSubmitSuite.scala index 197f68e7ec..96e456d889 100644 --- a/core/src/test/scala/org/apache/spark/deploy/rest/StandaloneRestSubmitSuite.scala +++ b/core/src/test/scala/org/apache/spark/deploy/rest/StandaloneRestSubmitSuite.scala @@ -23,14 +23,14 @@ import javax.servlet.http.HttpServletResponse import scala.collection.mutable -import akka.actor.{Actor, ActorRef, ActorSystem, Props} import com.google.common.base.Charsets import org.scalatest.BeforeAndAfterEach import org.json4s.JsonAST._ import org.json4s.jackson.JsonMethods._ import org.apache.spark._ -import org.apache.spark.util.{AkkaUtils, Utils} +import org.apache.spark.rpc._ +import org.apache.spark.util.Utils import org.apache.spark.deploy.DeployMessages._ import org.apache.spark.deploy.{SparkSubmit, SparkSubmitArguments} import org.apache.spark.deploy.master.DriverState._ @@ -39,11 +39,11 @@ import org.apache.spark.deploy.master.DriverState._ * Tests for the REST application submission protocol used in standalone cluster mode. */ class StandaloneRestSubmitSuite extends SparkFunSuite with BeforeAndAfterEach { - private var actorSystem: Option[ActorSystem] = None + private var rpcEnv: Option[RpcEnv] = None private var server: Option[RestSubmissionServer] = None override def afterEach() { - actorSystem.foreach(_.shutdown()) + rpcEnv.foreach(_.shutdown()) server.foreach(_.stop()) } @@ -377,31 +377,32 @@ class StandaloneRestSubmitSuite extends SparkFunSuite with BeforeAndAfterEach { killMessage: String = "driver is killed", state: DriverState = FINISHED, exception: Option[Exception] = None): String = { - startServer(new DummyMaster(submitId, submitMessage, killMessage, state, exception)) + startServer(new DummyMaster(_, submitId, submitMessage, killMessage, state, exception)) } /** Start a smarter dummy server that keeps track of submitted driver states. */ private def startSmartServer(): String = { - startServer(new SmarterMaster) + startServer(new SmarterMaster(_)) } /** Start a dummy server that is faulty in many ways... */ private def startFaultyServer(): String = { - startServer(new DummyMaster, faulty = true) + startServer(new DummyMaster(_), faulty = true) } /** - * Start a [[StandaloneRestServer]] that communicates with the given actor. + * Start a [[StandaloneRestServer]] that communicates with the given endpoint. * If `faulty` is true, start an [[FaultyStandaloneRestServer]] instead. * Return the master URL that corresponds to the address of this server. */ - private def startServer(makeFakeMaster: => Actor, faulty: Boolean = false): String = { + private def startServer( + makeFakeMaster: RpcEnv => RpcEndpoint, faulty: Boolean = false): String = { val name = "test-standalone-rest-protocol" val conf = new SparkConf val localhost = Utils.localHostName() val securityManager = new SecurityManager(conf) - val (_actorSystem, _) = AkkaUtils.createActorSystem(name, localhost, 0, conf, securityManager) - val fakeMasterRef = _actorSystem.actorOf(Props(makeFakeMaster)) + val _rpcEnv = RpcEnv.create(name, localhost, 0, conf, securityManager) + val fakeMasterRef = _rpcEnv.setupEndpoint("fake-master", makeFakeMaster(_rpcEnv)) val _server = if (faulty) { new FaultyStandaloneRestServer(localhost, 0, conf, fakeMasterRef, "spark://fake:7077") @@ -410,7 +411,7 @@ class StandaloneRestSubmitSuite extends SparkFunSuite with BeforeAndAfterEach { } val port = _server.start() // set these to clean them up after every test - actorSystem = Some(_actorSystem) + rpcEnv = Some(_rpcEnv) server = Some(_server) s"spark://$localhost:$port" } @@ -505,20 +506,21 @@ class StandaloneRestSubmitSuite extends SparkFunSuite with BeforeAndAfterEach { * In all responses, the success parameter is always true. */ private class DummyMaster( + override val rpcEnv: RpcEnv, submitId: String = "fake-driver-id", submitMessage: String = "submitted", killMessage: String = "killed", state: DriverState = FINISHED, exception: Option[Exception] = None) - extends Actor { + extends RpcEndpoint { - override def receive: PartialFunction[Any, Unit] = { + override def receiveAndReply(context: RpcCallContext): PartialFunction[Any, Unit] = { case RequestSubmitDriver(driverDesc) => - sender ! SubmitDriverResponse(success = true, Some(submitId), submitMessage) + context.reply(SubmitDriverResponse(self, success = true, Some(submitId), submitMessage)) case RequestKillDriver(driverId) => - sender ! KillDriverResponse(driverId, success = true, killMessage) + context.reply(KillDriverResponse(self, driverId, success = true, killMessage)) case RequestDriverStatus(driverId) => - sender ! DriverStatusResponse(found = true, Some(state), None, None, exception) + context.reply(DriverStatusResponse(found = true, Some(state), None, None, exception)) } } @@ -531,28 +533,28 @@ private class DummyMaster( * Submits are always successful while kills and status requests are successful only * if the driver was submitted in the past. */ -private class SmarterMaster extends Actor { +private class SmarterMaster(override val rpcEnv: RpcEnv) extends ThreadSafeRpcEndpoint { private var counter: Int = 0 private val submittedDrivers = new mutable.HashMap[String, DriverState] - override def receive: PartialFunction[Any, Unit] = { + override def receiveAndReply(context: RpcCallContext): PartialFunction[Any, Unit] = { case RequestSubmitDriver(driverDesc) => val driverId = s"driver-$counter" submittedDrivers(driverId) = RUNNING counter += 1 - sender ! SubmitDriverResponse(success = true, Some(driverId), "submitted") + context.reply(SubmitDriverResponse(self, success = true, Some(driverId), "submitted")) case RequestKillDriver(driverId) => val success = submittedDrivers.contains(driverId) if (success) { submittedDrivers(driverId) = KILLED } - sender ! KillDriverResponse(driverId, success, "killed") + context.reply(KillDriverResponse(self, driverId, success, "killed")) case RequestDriverStatus(driverId) => val found = submittedDrivers.contains(driverId) val state = submittedDrivers.get(driverId) - sender ! DriverStatusResponse(found, state, None, None, None) + context.reply(DriverStatusResponse(found, state, None, None, None)) } } @@ -568,7 +570,7 @@ private class FaultyStandaloneRestServer( host: String, requestedPort: Int, masterConf: SparkConf, - masterActor: ActorRef, + masterEndpoint: RpcEndpointRef, masterUrl: String) extends RestSubmissionServer(host, requestedPort, masterConf) { @@ -578,7 +580,7 @@ private class FaultyStandaloneRestServer( /** A faulty servlet that produces malformed responses. */ class MalformedSubmitServlet - extends StandaloneSubmitRequestServlet(masterActor, masterUrl, masterConf) { + extends StandaloneSubmitRequestServlet(masterEndpoint, masterUrl, masterConf) { protected override def sendResponse( responseMessage: SubmitRestProtocolResponse, responseServlet: HttpServletResponse): Unit = { @@ -588,7 +590,7 @@ private class FaultyStandaloneRestServer( } /** A faulty servlet that produces invalid responses. */ - class InvalidKillServlet extends StandaloneKillRequestServlet(masterActor, masterConf) { + class InvalidKillServlet extends StandaloneKillRequestServlet(masterEndpoint, masterConf) { protected override def handleKill(submissionId: String): KillSubmissionResponse = { val k = super.handleKill(submissionId) k.submissionId = null @@ -597,7 +599,7 @@ private class FaultyStandaloneRestServer( } /** A faulty status servlet that explodes. */ - class ExplodingStatusServlet extends StandaloneStatusRequestServlet(masterActor, masterConf) { + class ExplodingStatusServlet extends StandaloneStatusRequestServlet(masterEndpoint, masterConf) { private def explode: Int = 1 / 0 protected override def handleStatus(submissionId: String): SubmissionStatusResponse = { val s = super.handleStatus(submissionId) diff --git a/core/src/test/scala/org/apache/spark/deploy/worker/WorkerWatcherSuite.scala b/core/src/test/scala/org/apache/spark/deploy/worker/WorkerWatcherSuite.scala index ac18f04a11..cd24d79423 100644 --- a/core/src/test/scala/org/apache/spark/deploy/worker/WorkerWatcherSuite.scala +++ b/core/src/test/scala/org/apache/spark/deploy/worker/WorkerWatcherSuite.scala @@ -17,7 +17,6 @@ package org.apache.spark.deploy.worker -import akka.actor.AddressFromURIString import org.apache.spark.{SparkConf, SparkFunSuite} import org.apache.spark.SecurityManager import org.apache.spark.rpc.{RpcAddress, RpcEnv} @@ -26,13 +25,11 @@ class WorkerWatcherSuite extends SparkFunSuite { test("WorkerWatcher shuts down on valid disassociation") { val conf = new SparkConf() val rpcEnv = RpcEnv.create("test", "localhost", 12345, conf, new SecurityManager(conf)) - val targetWorkerUrl = "akka://test@1.2.3.4:1234/user/Worker" - val targetWorkerAddress = AddressFromURIString(targetWorkerUrl) + val targetWorkerUrl = rpcEnv.uriOf("test", RpcAddress("1.2.3.4", 1234), "Worker") val workerWatcher = new WorkerWatcher(rpcEnv, targetWorkerUrl) workerWatcher.setTesting(testing = true) rpcEnv.setupEndpoint("worker-watcher", workerWatcher) - workerWatcher.onDisconnected( - RpcAddress(targetWorkerAddress.host.get, targetWorkerAddress.port.get)) + workerWatcher.onDisconnected(RpcAddress("1.2.3.4", 1234)) assert(workerWatcher.isShutDown) rpcEnv.shutdown() } @@ -40,13 +37,13 @@ class WorkerWatcherSuite extends SparkFunSuite { test("WorkerWatcher stays alive on invalid disassociation") { val conf = new SparkConf() val rpcEnv = RpcEnv.create("test", "localhost", 12345, conf, new SecurityManager(conf)) - val targetWorkerUrl = "akka://test@1.2.3.4:1234/user/Worker" - val otherAkkaURL = "akka://test@4.3.2.1:1234/user/OtherActor" - val otherAkkaAddress = AddressFromURIString(otherAkkaURL) + val targetWorkerUrl = rpcEnv.uriOf("test", RpcAddress("1.2.3.4", 1234), "Worker") + val otherAddress = "akka://test@4.3.2.1:1234/user/OtherActor" + val otherAkkaAddress = RpcAddress("4.3.2.1", 1234) val workerWatcher = new WorkerWatcher(rpcEnv, targetWorkerUrl) workerWatcher.setTesting(testing = true) rpcEnv.setupEndpoint("worker-watcher", workerWatcher) - workerWatcher.onDisconnected(RpcAddress(otherAkkaAddress.host.get, otherAkkaAddress.port.get)) + workerWatcher.onDisconnected(otherAkkaAddress) assert(!workerWatcher.isShutDown) rpcEnv.shutdown() } diff --git a/core/src/test/scala/org/apache/spark/rpc/RpcAddressSuite.scala b/core/src/test/scala/org/apache/spark/rpc/RpcAddressSuite.scala new file mode 100644 index 0000000000..b3223ec61b --- /dev/null +++ b/core/src/test/scala/org/apache/spark/rpc/RpcAddressSuite.scala @@ -0,0 +1,55 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.spark.rpc + +import org.apache.spark.{SparkException, SparkFunSuite} + +class RpcAddressSuite extends SparkFunSuite { + + test("hostPort") { + val address = RpcAddress("1.2.3.4", 1234) + assert(address.host == "1.2.3.4") + assert(address.port == 1234) + assert(address.hostPort == "1.2.3.4:1234") + } + + test("fromSparkURL") { + val address = RpcAddress.fromSparkURL("spark://1.2.3.4:1234") + assert(address.host == "1.2.3.4") + assert(address.port == 1234) + } + + test("fromSparkURL: a typo url") { + val e = intercept[SparkException] { + RpcAddress.fromSparkURL("spark://1.2. 3.4:1234") + } + assert("Invalid master URL: spark://1.2. 3.4:1234" === e.getMessage) + } + + test("fromSparkURL: invalid scheme") { + val e = intercept[SparkException] { + RpcAddress.fromSparkURL("invalid://1.2.3.4:1234") + } + assert("Invalid master URL: invalid://1.2.3.4:1234" === e.getMessage) + } + + test("toSparkURL") { + val address = RpcAddress("1.2.3.4", 1234) + assert(address.toSparkURL == "spark://1.2.3.4:1234") + } +} diff --git a/core/src/test/scala/org/apache/spark/rpc/akka/AkkaRpcEnvSuite.scala b/core/src/test/scala/org/apache/spark/rpc/akka/AkkaRpcEnvSuite.scala index a33a83db7b..4aa75c9230 100644 --- a/core/src/test/scala/org/apache/spark/rpc/akka/AkkaRpcEnvSuite.scala +++ b/core/src/test/scala/org/apache/spark/rpc/akka/AkkaRpcEnvSuite.scala @@ -18,7 +18,7 @@ package org.apache.spark.rpc.akka import org.apache.spark.rpc._ -import org.apache.spark.{SecurityManager, SparkConf} +import org.apache.spark.{SSLSampleConfigs, SecurityManager, SparkConf} class AkkaRpcEnvSuite extends RpcEnvSuite { @@ -47,4 +47,22 @@ class AkkaRpcEnvSuite extends RpcEnvSuite { } } + test("uriOf") { + val uri = env.uriOf("local", RpcAddress("1.2.3.4", 12345), "test_endpoint") + assert("akka.tcp://local@1.2.3.4:12345/user/test_endpoint" === uri) + } + + test("uriOf: ssl") { + val conf = SSLSampleConfigs.sparkSSLConfig() + val securityManager = new SecurityManager(conf) + val rpcEnv = new AkkaRpcEnvFactory().create( + RpcEnvConfig(conf, "test", "localhost", 12346, securityManager)) + try { + val uri = rpcEnv.uriOf("local", RpcAddress("1.2.3.4", 12345), "test_endpoint") + assert("akka.ssl.tcp://local@1.2.3.4:12345/user/test_endpoint" === uri) + } finally { + rpcEnv.shutdown() + } + } + } |