MAPREDUCE-3616. Thread pool for launching containers in MR AM not expanding as expected. (Contributed by Vinod Kumar Vavilapalli)
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1229394 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Siddharth Seth
parent
8feb26f116
commit
239a5549ea
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@ -431,6 +431,9 @@ Release 0.23.1 - Unreleased
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MAPREDUCE-3624. Remove unnecessary dependency on JDK's tools.jar. (mahadev
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via acmurthy)
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MAPREDUCE-3616. Thread pool for launching containers in MR AM not
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expanding as expected. (vinodkv via sseth)
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Release 0.23.0 - 2011-11-01
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INCOMPATIBLE CHANGES
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@ -76,8 +76,8 @@ public class ContainerLauncherImpl extends AbstractService implements
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int nmTimeOut;
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private AppContext context;
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private ThreadPoolExecutor launcherPool;
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private static final int INITIAL_POOL_SIZE = 10;
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protected ThreadPoolExecutor launcherPool;
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protected static final int INITIAL_POOL_SIZE = 10;
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private int limitOnPoolSize;
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private Thread eventHandlingThread;
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private BlockingQueue<ContainerLauncherEvent> eventQueue =
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@ -102,6 +102,7 @@ public class ContainerLauncherImpl extends AbstractService implements
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this.limitOnPoolSize = conf.getInt(
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MRJobConfig.MR_AM_CONTAINERLAUNCHER_THREAD_COUNT_LIMIT,
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MRJobConfig.DEFAULT_MR_AM_CONTAINERLAUNCHER_THREAD_COUNT_LIMIT);
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LOG.info("Upper limit on the thread pool size is " + this.limitOnPoolSize);
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this.nmTimeOut = conf.getInt(ContainerLauncher.MR_AM_NM_COMMAND_TIMEOUT,
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ContainerLauncher.DEFAULT_NM_COMMAND_TIMEOUT);
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this.rpc = YarnRPC.create(conf);
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@ -141,20 +142,21 @@ public class ContainerLauncherImpl extends AbstractService implements
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int numNodes = allNodes.size();
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int idealPoolSize = Math.min(limitOnPoolSize, numNodes);
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if (poolSize <= idealPoolSize) {
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if (poolSize < idealPoolSize) {
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// Bump up the pool size to idealPoolSize+INITIAL_POOL_SIZE, the
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// later is just a buffer so we are not always increasing the
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// pool-size
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int newPoolSize = idealPoolSize + INITIAL_POOL_SIZE;
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LOG.info("Setting ContainerLauncher pool size to "
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+ newPoolSize);
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int newPoolSize = Math.min(limitOnPoolSize, idealPoolSize
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+ INITIAL_POOL_SIZE);
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LOG.info("Setting ContainerLauncher pool size to " + newPoolSize
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+ " as number-of-nodes to talk to is " + numNodes);
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launcherPool.setCorePoolSize(newPoolSize);
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}
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}
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// the events from the queue are handled in parallel
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// using a thread pool
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launcherPool.execute(new EventProcessor(event));
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launcherPool.execute(createEventProcessor(event));
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// TODO: Group launching of multiple containers to a single
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// NodeManager into a single connection
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@ -172,14 +174,16 @@ public class ContainerLauncherImpl extends AbstractService implements
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super.stop();
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}
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protected EventProcessor createEventProcessor(ContainerLauncherEvent event) {
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return new EventProcessor(event);
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}
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protected ContainerManager getCMProxy(ContainerId containerID,
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final String containerManagerBindAddr, ContainerToken containerToken)
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throws IOException {
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UserGroupInformation user = UserGroupInformation.getCurrentUser();
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this.allNodes.add(containerManagerBindAddr);
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if (UserGroupInformation.isSecurityEnabled()) {
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Token<ContainerTokenIdentifier> token = new Token<ContainerTokenIdentifier>(
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containerToken.getIdentifier().array(), containerToken
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@ -244,7 +248,7 @@ public class ContainerLauncherImpl extends AbstractService implements
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/**
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* Setup and start the container on remote nodemanager.
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*/
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private class EventProcessor implements Runnable {
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class EventProcessor implements Runnable {
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private ContainerLauncherEvent event;
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EventProcessor(ContainerLauncherEvent event) {
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@ -280,7 +284,7 @@ public class ContainerLauncherImpl extends AbstractService implements
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proxy = getCMProxy(containerID, containerManagerBindAddr,
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containerToken);
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// Interruped during getProxy, but that didn't throw exception
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// Interrupted during getProxy, but that didn't throw exception
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if (Thread.interrupted()) {
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// The timer cancelled the command in the mean while.
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String message = "Container launch failed for " + containerID
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@ -438,6 +442,7 @@ public class ContainerLauncherImpl extends AbstractService implements
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public void handle(ContainerLauncherEvent event) {
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try {
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eventQueue.put(event);
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this.allNodes.add(event.getContainerMgrAddress());
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} catch (InterruptedException e) {
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throw new YarnException(e);
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}
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@ -1,140 +0,0 @@
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/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.mapreduce.v2.app;
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import java.io.IOException;
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import java.util.Map;
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import junit.framework.Assert;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.mapreduce.MRJobConfig;
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import org.apache.hadoop.mapreduce.v2.api.records.JobState;
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import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId;
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import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptState;
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import org.apache.hadoop.mapreduce.v2.api.records.TaskId;
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import org.apache.hadoop.mapreduce.v2.api.records.TaskState;
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import org.apache.hadoop.mapreduce.v2.app.job.Job;
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import org.apache.hadoop.mapreduce.v2.app.job.Task;
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import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
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import org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncher;
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import org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncherImpl;
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import org.apache.hadoop.yarn.api.ContainerManager;
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import org.apache.hadoop.yarn.api.records.ContainerId;
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import org.apache.hadoop.yarn.api.records.ContainerToken;
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import org.junit.Test;
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public class TestContainerLauncher {
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static final Log LOG = LogFactory
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.getLog(TestContainerLauncher.class);
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@Test
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public void testSlowNM() throws Exception {
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test(false);
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}
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@Test
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public void testSlowNMWithInterruptsSwallowed() throws Exception {
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test(true);
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}
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private void test(boolean swallowInterrupts) throws Exception {
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MRApp app = new MRAppWithSlowNM(swallowInterrupts);
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Configuration conf = new Configuration();
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int maxAttempts = 1;
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conf.setInt(MRJobConfig.MAP_MAX_ATTEMPTS, maxAttempts);
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conf.setBoolean(MRJobConfig.JOB_UBERTASK_ENABLE, false);
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// Set low timeout for NM commands
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conf.setInt(ContainerLauncher.MR_AM_NM_COMMAND_TIMEOUT, 3000);
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Job job = app.submit(conf);
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app.waitForState(job, JobState.RUNNING);
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Map<TaskId, Task> tasks = job.getTasks();
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Assert.assertEquals("Num tasks is not correct", 1, tasks.size());
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Task task = tasks.values().iterator().next();
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app.waitForState(task, TaskState.SCHEDULED);
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Map<TaskAttemptId, TaskAttempt> attempts = tasks.values().iterator()
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.next().getAttempts();
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Assert.assertEquals("Num attempts is not correct", maxAttempts, attempts
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.size());
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TaskAttempt attempt = attempts.values().iterator().next();
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app.waitForState(attempt, TaskAttemptState.ASSIGNED);
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app.waitForState(job, JobState.FAILED);
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String diagnostics = attempt.getDiagnostics().toString();
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LOG.info("attempt.getDiagnostics: " + diagnostics);
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if (swallowInterrupts) {
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Assert.assertEquals("[Container launch failed for "
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+ "container_0_0000_01_000000 : Start-container for "
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+ "container_0_0000_01_000000 got interrupted. Returning.]",
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diagnostics);
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} else {
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Assert.assertTrue(diagnostics.contains("Container launch failed for "
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+ "container_0_0000_01_000000 : "));
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Assert.assertTrue(diagnostics
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.contains(": java.lang.InterruptedException"));
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}
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app.stop();
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}
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private static class MRAppWithSlowNM extends MRApp {
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final boolean swallowInterrupts;
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public MRAppWithSlowNM(boolean swallowInterrupts) {
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super(1, 0, false, "TestContainerLauncher", true);
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this.swallowInterrupts = swallowInterrupts;
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}
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@Override
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protected ContainerLauncher createContainerLauncher(AppContext context) {
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return new ContainerLauncherImpl(context) {
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@Override
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protected ContainerManager getCMProxy(ContainerId containerID,
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String containerManagerBindAddr, ContainerToken containerToken)
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throws IOException {
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try {
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synchronized (this) {
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wait(); // Just hang the thread simulating a very slow NM.
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}
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} catch (InterruptedException e) {
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LOG.info(e);
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if (!MRAppWithSlowNM.this.swallowInterrupts) {
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throw new IOException(e);
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}
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Thread.currentThread().interrupt();
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}
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return null;
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}
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};
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};
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}
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}
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@ -0,0 +1,321 @@
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/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.mapreduce.v2.app.launcher;
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import static org.mockito.Mockito.mock;
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import java.io.IOException;
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import java.util.Map;
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import java.util.concurrent.ThreadPoolExecutor;
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import junit.framework.Assert;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.mapreduce.MRJobConfig;
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import org.apache.hadoop.mapreduce.v2.api.records.JobId;
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import org.apache.hadoop.mapreduce.v2.api.records.JobState;
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import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId;
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import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptState;
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import org.apache.hadoop.mapreduce.v2.api.records.TaskId;
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import org.apache.hadoop.mapreduce.v2.api.records.TaskState;
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import org.apache.hadoop.mapreduce.v2.api.records.TaskType;
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import org.apache.hadoop.mapreduce.v2.app.AppContext;
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import org.apache.hadoop.mapreduce.v2.app.MRApp;
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import org.apache.hadoop.mapreduce.v2.app.job.Job;
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import org.apache.hadoop.mapreduce.v2.app.job.Task;
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import org.apache.hadoop.mapreduce.v2.app.job.TaskAttempt;
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import org.apache.hadoop.mapreduce.v2.util.MRBuilderUtils;
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import org.apache.hadoop.yarn.api.ContainerManager;
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import org.apache.hadoop.yarn.api.records.ApplicationAttemptId;
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import org.apache.hadoop.yarn.api.records.ApplicationId;
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import org.apache.hadoop.yarn.api.records.ContainerId;
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import org.apache.hadoop.yarn.api.records.ContainerToken;
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import org.apache.hadoop.yarn.util.BuilderUtils;
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import org.junit.Test;
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public class TestContainerLauncher {
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static final Log LOG = LogFactory
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.getLog(TestContainerLauncher.class);
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@Test
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public void testPoolSize() throws InterruptedException {
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ApplicationId appId = BuilderUtils.newApplicationId(12345, 67);
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ApplicationAttemptId appAttemptId = BuilderUtils.newApplicationAttemptId(
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appId, 3);
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JobId jobId = MRBuilderUtils.newJobId(appId, 8);
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TaskId taskId = MRBuilderUtils.newTaskId(jobId, 9, TaskType.MAP);
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TaskAttemptId taskAttemptId = MRBuilderUtils.newTaskAttemptId(taskId, 0);
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ContainerId containerId = BuilderUtils.newContainerId(appAttemptId, 10);
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AppContext context = mock(AppContext.class);
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CustomContainerLauncher containerLauncher = new CustomContainerLauncher(
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context);
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containerLauncher.init(new Configuration());
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containerLauncher.start();
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ThreadPoolExecutor threadPool = containerLauncher.getThreadPool();
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// No events yet
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Assert.assertEquals(0, threadPool.getPoolSize());
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Assert.assertEquals(ContainerLauncherImpl.INITIAL_POOL_SIZE,
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threadPool.getCorePoolSize());
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Assert.assertNull(containerLauncher.foundErrors);
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containerLauncher.expectedCorePoolSize = ContainerLauncherImpl.INITIAL_POOL_SIZE;
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for (int i = 0; i < 10; i++) {
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containerLauncher.handle(new ContainerLauncherEvent(taskAttemptId,
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containerId, "host" + i + ":1234", null,
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ContainerLauncher.EventType.CONTAINER_REMOTE_LAUNCH));
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}
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waitForEvents(containerLauncher, 10);
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Assert.assertEquals(10, threadPool.getPoolSize());
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Assert.assertNull(containerLauncher.foundErrors);
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// Same set of hosts, so no change
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containerLauncher.expectedCorePoolSize = ContainerLauncherImpl.INITIAL_POOL_SIZE;
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containerLauncher.finishEventHandling = true;
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for (int i = 0; i < 10; i++) {
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containerLauncher.handle(new ContainerLauncherEvent(taskAttemptId,
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containerId, "host" + i + ":1234", null,
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ContainerLauncher.EventType.CONTAINER_REMOTE_LAUNCH));
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}
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waitForEvents(containerLauncher, 20);
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Assert.assertEquals(10, threadPool.getPoolSize());
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Assert.assertNull(containerLauncher.foundErrors);
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// Different hosts, there should be an increase in core-thread-pool size to
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// 21(11hosts+10buffer)
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// Core pool size should be 21 but the live pool size should be only 11.
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containerLauncher.expectedCorePoolSize = 12 + ContainerLauncherImpl.INITIAL_POOL_SIZE;
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for (int i = 1; i <= 2; i++) {
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containerLauncher.handle(new ContainerLauncherEvent(taskAttemptId,
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containerId, "host1" + i + ":1234", null,
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ContainerLauncher.EventType.CONTAINER_REMOTE_LAUNCH));
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}
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waitForEvents(containerLauncher, 22);
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Assert.assertEquals(12, threadPool.getPoolSize());
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Assert.assertNull(containerLauncher.foundErrors);
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containerLauncher.stop();
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}
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@Test
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public void testPoolLimits() throws InterruptedException {
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ApplicationId appId = BuilderUtils.newApplicationId(12345, 67);
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ApplicationAttemptId appAttemptId = BuilderUtils.newApplicationAttemptId(
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appId, 3);
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JobId jobId = MRBuilderUtils.newJobId(appId, 8);
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TaskId taskId = MRBuilderUtils.newTaskId(jobId, 9, TaskType.MAP);
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TaskAttemptId taskAttemptId = MRBuilderUtils.newTaskAttemptId(taskId, 0);
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ContainerId containerId = BuilderUtils.newContainerId(appAttemptId, 10);
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AppContext context = mock(AppContext.class);
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CustomContainerLauncher containerLauncher = new CustomContainerLauncher(
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context);
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Configuration conf = new Configuration();
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conf.setInt(MRJobConfig.MR_AM_CONTAINERLAUNCHER_THREAD_COUNT_LIMIT, 12);
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containerLauncher.init(conf);
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containerLauncher.start();
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ThreadPoolExecutor threadPool = containerLauncher.getThreadPool();
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// 10 different hosts
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containerLauncher.expectedCorePoolSize = ContainerLauncherImpl.INITIAL_POOL_SIZE;
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for (int i = 0; i < 10; i++) {
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containerLauncher.handle(new ContainerLauncherEvent(taskAttemptId,
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containerId, "host" + i + ":1234", null,
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ContainerLauncher.EventType.CONTAINER_REMOTE_LAUNCH));
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}
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waitForEvents(containerLauncher, 10);
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Assert.assertEquals(10, threadPool.getPoolSize());
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Assert.assertNull(containerLauncher.foundErrors);
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// 4 more different hosts, but thread pool size should be capped at 12
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containerLauncher.expectedCorePoolSize = 12 ;
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for (int i = 1; i <= 4; i++) {
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containerLauncher.handle(new ContainerLauncherEvent(taskAttemptId,
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containerId, "host1" + i + ":1234", null,
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ContainerLauncher.EventType.CONTAINER_REMOTE_LAUNCH));
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}
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waitForEvents(containerLauncher, 12);
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Assert.assertEquals(12, threadPool.getPoolSize());
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Assert.assertNull(containerLauncher.foundErrors);
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// Make some threads ideal so that remaining events are also done.
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containerLauncher.finishEventHandling = true;
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waitForEvents(containerLauncher, 14);
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Assert.assertEquals(12, threadPool.getPoolSize());
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Assert.assertNull(containerLauncher.foundErrors);
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containerLauncher.stop();
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}
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private void waitForEvents(CustomContainerLauncher containerLauncher,
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int expectedNumEvents) throws InterruptedException {
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int timeOut = 20;
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while (expectedNumEvents != containerLauncher.numEventsProcessed
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|| timeOut++ < 20) {
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LOG.info("Waiting for number of events to become " + expectedNumEvents
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+ ". It is now " + containerLauncher.numEventsProcessed);
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Thread.sleep(1000);
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}
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Assert
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.assertEquals(expectedNumEvents, containerLauncher.numEventsProcessed);
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}
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@Test
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public void testSlowNM() throws Exception {
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test(false);
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}
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@Test
|
||||
public void testSlowNMWithInterruptsSwallowed() throws Exception {
|
||||
test(true);
|
||||
}
|
||||
|
||||
private void test(boolean swallowInterrupts) throws Exception {
|
||||
|
||||
MRApp app = new MRAppWithSlowNM(swallowInterrupts);
|
||||
|
||||
Configuration conf = new Configuration();
|
||||
int maxAttempts = 1;
|
||||
conf.setInt(MRJobConfig.MAP_MAX_ATTEMPTS, maxAttempts);
|
||||
conf.setBoolean(MRJobConfig.JOB_UBERTASK_ENABLE, false);
|
||||
|
||||
// Set low timeout for NM commands
|
||||
conf.setInt(ContainerLauncher.MR_AM_NM_COMMAND_TIMEOUT, 3000);
|
||||
|
||||
Job job = app.submit(conf);
|
||||
app.waitForState(job, JobState.RUNNING);
|
||||
|
||||
Map<TaskId, Task> tasks = job.getTasks();
|
||||
Assert.assertEquals("Num tasks is not correct", 1, tasks.size());
|
||||
|
||||
Task task = tasks.values().iterator().next();
|
||||
app.waitForState(task, TaskState.SCHEDULED);
|
||||
|
||||
Map<TaskAttemptId, TaskAttempt> attempts = tasks.values().iterator()
|
||||
.next().getAttempts();
|
||||
Assert.assertEquals("Num attempts is not correct", maxAttempts, attempts
|
||||
.size());
|
||||
|
||||
TaskAttempt attempt = attempts.values().iterator().next();
|
||||
app.waitForState(attempt, TaskAttemptState.ASSIGNED);
|
||||
|
||||
app.waitForState(job, JobState.FAILED);
|
||||
|
||||
String diagnostics = attempt.getDiagnostics().toString();
|
||||
LOG.info("attempt.getDiagnostics: " + diagnostics);
|
||||
if (swallowInterrupts) {
|
||||
Assert.assertEquals("[Container launch failed for "
|
||||
+ "container_0_0000_01_000000 : Start-container for "
|
||||
+ "container_0_0000_01_000000 got interrupted. Returning.]",
|
||||
diagnostics);
|
||||
} else {
|
||||
Assert.assertTrue(diagnostics.contains("Container launch failed for "
|
||||
+ "container_0_0000_01_000000 : "));
|
||||
Assert.assertTrue(diagnostics
|
||||
.contains(": java.lang.InterruptedException"));
|
||||
}
|
||||
|
||||
app.stop();
|
||||
}
|
||||
|
||||
private final class CustomContainerLauncher extends ContainerLauncherImpl {
|
||||
|
||||
private volatile int expectedCorePoolSize = 0;
|
||||
private volatile int numEventsProcessed = 0;
|
||||
private volatile String foundErrors = null;
|
||||
private volatile boolean finishEventHandling;
|
||||
private CustomContainerLauncher(AppContext context) {
|
||||
super(context);
|
||||
}
|
||||
|
||||
public ThreadPoolExecutor getThreadPool() {
|
||||
return super.launcherPool;
|
||||
}
|
||||
|
||||
protected ContainerLauncherImpl.EventProcessor createEventProcessor(
|
||||
ContainerLauncherEvent event) {
|
||||
// At this point of time, the EventProcessor is being created and so no
|
||||
// additional threads would have been created.
|
||||
|
||||
// Core-pool-size should have increased by now.
|
||||
if (expectedCorePoolSize != launcherPool.getCorePoolSize()) {
|
||||
foundErrors = "Expected " + expectedCorePoolSize + " but found "
|
||||
+ launcherPool.getCorePoolSize();
|
||||
}
|
||||
|
||||
return new ContainerLauncherImpl.EventProcessor(event) {
|
||||
@Override
|
||||
public void run() {
|
||||
// do nothing substantial
|
||||
numEventsProcessed++;
|
||||
// Stall
|
||||
synchronized(this) {
|
||||
try {
|
||||
while(!finishEventHandling) {
|
||||
wait(1000);
|
||||
}
|
||||
} catch (InterruptedException e) {
|
||||
;
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
private static class MRAppWithSlowNM extends MRApp {
|
||||
|
||||
final boolean swallowInterrupts;
|
||||
|
||||
public MRAppWithSlowNM(boolean swallowInterrupts) {
|
||||
super(1, 0, false, "TestContainerLauncher", true);
|
||||
this.swallowInterrupts = swallowInterrupts;
|
||||
}
|
||||
|
||||
@Override
|
||||
protected ContainerLauncher createContainerLauncher(AppContext context) {
|
||||
return new ContainerLauncherImpl(context) {
|
||||
@Override
|
||||
protected ContainerManager getCMProxy(ContainerId containerID,
|
||||
String containerManagerBindAddr, ContainerToken containerToken)
|
||||
throws IOException {
|
||||
try {
|
||||
synchronized (this) {
|
||||
wait(); // Just hang the thread simulating a very slow NM.
|
||||
}
|
||||
} catch (InterruptedException e) {
|
||||
LOG.info(e);
|
||||
if (!MRAppWithSlowNM.this.swallowInterrupts) {
|
||||
throw new IOException(e);
|
||||
}
|
||||
Thread.currentThread().interrupt();
|
||||
}
|
||||
return null;
|
||||
}
|
||||
};
|
||||
};
|
||||
}
|
||||
}
|
||||
|
|
@ -27,6 +27,7 @@ import java.io.IOException;
|
|||
import java.io.InputStream;
|
||||
import java.io.InputStreamReader;
|
||||
import java.net.URI;
|
||||
import java.net.URL;
|
||||
import java.util.Arrays;
|
||||
import java.util.HashMap;
|
||||
import java.util.Iterator;
|
||||
|
|
@ -181,23 +182,31 @@ public class MRApps extends Apps {
|
|||
String mrAppGeneratedClasspathFile = "mrapp-generated-classpath";
|
||||
classpathFileStream =
|
||||
thisClassLoader.getResourceAsStream(mrAppGeneratedClasspathFile);
|
||||
// Put the file itself on classpath for tasks.
|
||||
String classpathElement = thisClassLoader.getResource(mrAppGeneratedClasspathFile).getFile();
|
||||
if (classpathElement.contains("!")) {
|
||||
classpathElement = classpathElement.substring(0, classpathElement.indexOf("!"));
|
||||
}
|
||||
else {
|
||||
classpathElement = new File(classpathElement).getParent();
|
||||
}
|
||||
Apps.addToEnvironment(
|
||||
environment,
|
||||
Environment.CLASSPATH.name(), classpathElement);
|
||||
|
||||
reader = new BufferedReader(new InputStreamReader(classpathFileStream));
|
||||
String cp = reader.readLine();
|
||||
if (cp != null) {
|
||||
Apps.addToEnvironment(environment, Environment.CLASSPATH.name(), cp.trim());
|
||||
// Put the file itself on classpath for tasks.
|
||||
URL classpathResource = thisClassLoader
|
||||
.getResource(mrAppGeneratedClasspathFile);
|
||||
if (classpathResource != null) {
|
||||
String classpathElement = classpathResource.getFile();
|
||||
if (classpathElement.contains("!")) {
|
||||
classpathElement = classpathElement.substring(0,
|
||||
classpathElement.indexOf("!"));
|
||||
} else {
|
||||
classpathElement = new File(classpathElement).getParent();
|
||||
}
|
||||
Apps.addToEnvironment(environment, Environment.CLASSPATH.name(),
|
||||
classpathElement);
|
||||
}
|
||||
|
||||
if (classpathFileStream != null) {
|
||||
reader = new BufferedReader(new InputStreamReader(classpathFileStream));
|
||||
String cp = reader.readLine();
|
||||
if (cp != null) {
|
||||
Apps.addToEnvironment(environment, Environment.CLASSPATH.name(),
|
||||
cp.trim());
|
||||
}
|
||||
}
|
||||
|
||||
// Add standard Hadoop classes
|
||||
for (String c : ApplicationConstants.APPLICATION_CLASSPATH) {
|
||||
Apps.addToEnvironment(environment, Environment.CLASSPATH.name(), c);
|
||||
|
|
|
|||
Loading…
Reference in New Issue