1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
/*
* 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.deploy.rest.mesos
import java.io.File
import java.text.SimpleDateFormat
import java.util.Date
import java.util.concurrent.atomic.AtomicLong
import javax.servlet.http.HttpServletResponse
import org.apache.spark.deploy.Command
import org.apache.spark.deploy.mesos.MesosDriverDescription
import org.apache.spark.deploy.rest._
import org.apache.spark.scheduler.cluster.mesos.MesosClusterScheduler
import org.apache.spark.util.Utils
import org.apache.spark.{SPARK_VERSION => sparkVersion, SparkConf}
/**
* A server that responds to requests submitted by the [[RestSubmissionClient]].
* All requests are forwarded to
* [[org.apache.spark.scheduler.cluster.mesos.MesosClusterScheduler]].
* This is intended to be used in Mesos cluster mode only.
* For more details about the REST submission please refer to [[RestSubmissionServer]] javadocs.
*/
private[spark] class MesosRestServer(
host: String,
requestedPort: Int,
masterConf: SparkConf,
scheduler: MesosClusterScheduler)
extends RestSubmissionServer(host, requestedPort, masterConf) {
protected override val submitRequestServlet =
new MesosSubmitRequestServlet(scheduler, masterConf)
protected override val killRequestServlet =
new MesosKillRequestServlet(scheduler, masterConf)
protected override val statusRequestServlet =
new MesosStatusRequestServlet(scheduler, masterConf)
}
private[mesos] class MesosSubmitRequestServlet(
scheduler: MesosClusterScheduler,
conf: SparkConf)
extends SubmitRequestServlet {
private val DEFAULT_SUPERVISE = false
private val DEFAULT_MEMORY = Utils.DEFAULT_DRIVER_MEM_MB // mb
private val DEFAULT_CORES = 1.0
private val nextDriverNumber = new AtomicLong(0)
private def createDateFormat = new SimpleDateFormat("yyyyMMddHHmmss") // For application IDs
private def newDriverId(submitDate: Date): String = {
"driver-%s-%04d".format(
createDateFormat.format(submitDate), nextDriverNumber.incrementAndGet())
}
/**
* Build a driver description from the fields specified in the submit request.
*
* This involves constructing a command that launches a mesos framework for the job.
* This does not currently consider fields used by python applications since python
* is not supported in mesos cluster mode yet.
*/
private def buildDriverDescription(request: CreateSubmissionRequest): MesosDriverDescription = {
// Required fields, including the main class because python is not yet supported
val appResource = Option(request.appResource).getOrElse {
throw new SubmitRestMissingFieldException("Application jar is missing.")
}
val mainClass = Option(request.mainClass).getOrElse {
throw new SubmitRestMissingFieldException("Main class is missing.")
}
// Optional fields
val sparkProperties = request.sparkProperties
val driverExtraJavaOptions = sparkProperties.get("spark.driver.extraJavaOptions")
val driverExtraClassPath = sparkProperties.get("spark.driver.extraClassPath")
val driverExtraLibraryPath = sparkProperties.get("spark.driver.extraLibraryPath")
val superviseDriver = sparkProperties.get("spark.driver.supervise")
val driverMemory = sparkProperties.get("spark.driver.memory")
val driverCores = sparkProperties.get("spark.driver.cores")
val appArgs = request.appArgs
// We don't want to pass down SPARK_HOME when launching Spark apps
// with Mesos cluster mode since it's populated by default on the client and it will
// cause spark-submit script to look for files in SPARK_HOME instead.
// We only need the ability to specify where to find spark-submit script
// which user can user spark.executor.home or spark.home configurations.
val environmentVariables = request.environmentVariables.filterKeys(!_.equals("SPARK_HOME"))
val name = request.sparkProperties.get("spark.app.name").getOrElse(mainClass)
// Construct driver description
val conf = new SparkConf(false).setAll(sparkProperties)
val extraClassPath = driverExtraClassPath.toSeq.flatMap(_.split(File.pathSeparator))
val extraLibraryPath = driverExtraLibraryPath.toSeq.flatMap(_.split(File.pathSeparator))
val extraJavaOpts = driverExtraJavaOptions.map(Utils.splitCommandString).getOrElse(Seq.empty)
val sparkJavaOpts = Utils.sparkJavaOpts(conf)
val javaOpts = sparkJavaOpts ++ extraJavaOpts
val command = new Command(
mainClass, appArgs, environmentVariables, extraClassPath, extraLibraryPath, javaOpts)
val actualSuperviseDriver = superviseDriver.map(_.toBoolean).getOrElse(DEFAULT_SUPERVISE)
val actualDriverMemory = driverMemory.map(Utils.memoryStringToMb).getOrElse(DEFAULT_MEMORY)
val actualDriverCores = driverCores.map(_.toDouble).getOrElse(DEFAULT_CORES)
val submitDate = new Date()
val submissionId = newDriverId(submitDate)
new MesosDriverDescription(
name, appResource, actualDriverMemory, actualDriverCores, actualSuperviseDriver,
command, request.sparkProperties, submissionId, submitDate)
}
protected override def handleSubmit(
requestMessageJson: String,
requestMessage: SubmitRestProtocolMessage,
responseServlet: HttpServletResponse): SubmitRestProtocolResponse = {
requestMessage match {
case submitRequest: CreateSubmissionRequest =>
val driverDescription = buildDriverDescription(submitRequest)
val s = scheduler.submitDriver(driverDescription)
s.serverSparkVersion = sparkVersion
val unknownFields = findUnknownFields(requestMessageJson, requestMessage)
if (unknownFields.nonEmpty) {
// If there are fields that the server does not know about, warn the client
s.unknownFields = unknownFields
}
s
case unexpected =>
responseServlet.setStatus(HttpServletResponse.SC_BAD_REQUEST)
handleError(s"Received message of unexpected type ${unexpected.messageType}.")
}
}
}
private[mesos] class MesosKillRequestServlet(scheduler: MesosClusterScheduler, conf: SparkConf)
extends KillRequestServlet {
protected override def handleKill(submissionId: String): KillSubmissionResponse = {
val k = scheduler.killDriver(submissionId)
k.serverSparkVersion = sparkVersion
k
}
}
private[mesos] class MesosStatusRequestServlet(scheduler: MesosClusterScheduler, conf: SparkConf)
extends StatusRequestServlet {
protected override def handleStatus(submissionId: String): SubmissionStatusResponse = {
val d = scheduler.getDriverStatus(submissionId)
d.serverSparkVersion = sparkVersion
d
}
}
|
