From 323a83c5235f9289cd9526491d62365df96a429b Mon Sep 17 00:00:00 2001
From: GuoQiang Li <witgo@qq.com>
Date: Thu, 24 Jul 2014 14:46:10 -0500
Subject: [SPARK-2037]: yarn client mode doesn't support
 spark.yarn.max.executor.failures

Author: GuoQiang Li <witgo@qq.com>

Closes #1180 from witgo/SPARK-2037 and squashes the following commits:

3d52411 [GuoQiang Li] review commit
7058f4d [GuoQiang Li] Correctly stop SparkContext
6d0561f [GuoQiang Li] Fix: yarn client mode doesn't support spark.yarn.max.executor.failures
---
 .../spark/deploy/yarn/ExecutorLauncher.scala       | 45 +++++++++++++++++-----
 1 file changed, 35 insertions(+), 10 deletions(-)

(limited to 'yarn/stable')

diff --git a/yarn/stable/src/main/scala/org/apache/spark/deploy/yarn/ExecutorLauncher.scala b/yarn/stable/src/main/scala/org/apache/spark/deploy/yarn/ExecutorLauncher.scala
index 7158d9442a..fc7b8320d7 100644
--- a/yarn/stable/src/main/scala/org/apache/spark/deploy/yarn/ExecutorLauncher.scala
+++ b/yarn/stable/src/main/scala/org/apache/spark/deploy/yarn/ExecutorLauncher.scala
@@ -19,15 +19,12 @@ package org.apache.spark.deploy.yarn
 
 import java.net.Socket
 import org.apache.hadoop.conf.Configuration
-import org.apache.hadoop.net.NetUtils
-import org.apache.hadoop.yarn.api._
+import org.apache.hadoop.yarn.api.ApplicationConstants
 import org.apache.hadoop.yarn.api.records._
 import org.apache.hadoop.yarn.api.protocolrecords._
 import org.apache.hadoop.yarn.conf.YarnConfiguration
-import org.apache.hadoop.yarn.util.{ConverterUtils, Records}
 import akka.actor._
 import akka.remote._
-import akka.actor.Terminated
 import org.apache.spark.{Logging, SecurityManager, SparkConf}
 import org.apache.spark.util.{Utils, AkkaUtils}
 import org.apache.spark.scheduler.cluster.CoarseGrainedSchedulerBackend
@@ -57,10 +54,16 @@ class ExecutorLauncher(args: ApplicationMasterArguments, conf: Configuration, sp
   private val yarnConf: YarnConfiguration = new YarnConfiguration(conf)
 
   private var yarnAllocator: YarnAllocationHandler = _
-  private var driverClosed:Boolean = false
+  private var driverClosed: Boolean = false
+  private var isFinished: Boolean = false
+  private var registered: Boolean = false
 
   private var amClient: AMRMClient[ContainerRequest] = _
 
+  // Default to numExecutors * 2, with minimum of 3
+  private val maxNumExecutorFailures = sparkConf.getInt("spark.yarn.max.executor.failures",
+    sparkConf.getInt("spark.yarn.max.worker.failures", math.max(args.numExecutors * 2, 3)))
+
   val securityManager = new SecurityManager(sparkConf)
   val actorSystem: ActorSystem = AkkaUtils.createActorSystem("sparkYarnAM", Utils.localHostName, 0,
     conf = sparkConf, securityManager = securityManager)._1
@@ -101,7 +104,12 @@ class ExecutorLauncher(args: ApplicationMasterArguments, conf: Configuration, sp
     amClient.start()
 
     appAttemptId = ApplicationMaster.getApplicationAttemptId()
-    registerApplicationMaster()
+    synchronized {
+      if (!isFinished) {
+        registerApplicationMaster()
+        registered = true
+      }
+    }
 
     waitForSparkMaster()
     addAmIpFilter()
@@ -210,6 +218,7 @@ class ExecutorLauncher(args: ApplicationMasterArguments, conf: Configuration, sp
     yarnAllocator.addResourceRequests(args.numExecutors)
     yarnAllocator.allocateResources()
     while ((yarnAllocator.getNumExecutorsRunning < args.numExecutors) && (!driverClosed)) {
+      checkNumExecutorsFailed()
       allocateMissingExecutor()
       yarnAllocator.allocateResources()
       Thread.sleep(100)
@@ -228,12 +237,20 @@ class ExecutorLauncher(args: ApplicationMasterArguments, conf: Configuration, sp
     }
   }
 
+  private def checkNumExecutorsFailed() {
+    if (yarnAllocator.getNumExecutorsFailed >= maxNumExecutorFailures) {
+      finishApplicationMaster(FinalApplicationStatus.FAILED,
+        "max number of executor failures reached")
+    }
+  }
+
   private def launchReporterThread(_sleepTime: Long): Thread = {
     val sleepTime = if (_sleepTime <= 0) 0 else _sleepTime
 
     val t = new Thread {
       override def run() {
         while (!driverClosed) {
+          checkNumExecutorsFailed()
           allocateMissingExecutor()
           logDebug("Sending progress")
           yarnAllocator.allocateResources()
@@ -248,10 +265,18 @@ class ExecutorLauncher(args: ApplicationMasterArguments, conf: Configuration, sp
     t
   }
 
-  def finishApplicationMaster(status: FinalApplicationStatus) {
-    logInfo("Unregistering ApplicationMaster with " + status)
-    val trackingUrl = sparkConf.get("spark.driver.appUIHistoryAddress", "")
-    amClient.unregisterApplicationMaster(status, "" /* appMessage */ , trackingUrl)
+  def finishApplicationMaster(status: FinalApplicationStatus, appMessage: String = "") {
+    synchronized {
+      if (isFinished) {
+        return
+      }
+      logInfo("Unregistering ApplicationMaster with " + status)
+      if (registered) {
+        val trackingUrl = sparkConf.get("spark.yarn.historyServer.address", "")
+        amClient.unregisterApplicationMaster(status, appMessage, trackingUrl)
+      }
+      isFinished = true
+    }
   }
 
 }
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