YARN-72. NM should handle cleaning up containers when it shuts down. Contributed by Sandy Ryza.
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1416484 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Thomas White
parent
cbed126eec
commit
235749a8ab
@ -117,7 +117,11 @@ Release 2.0.3-alpha - Unreleased
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YARN-229. Remove old unused RM recovery code. (Bikas Saha via acmurthy)
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YARN-187. Add hierarchical queues to the fair scheduler. (Sandy Ryza via tomwhite)
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YARN-187. Add hierarchical queues to the fair scheduler.
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(Sandy Ryza via tomwhite)
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YARN-72. NM should handle cleaning up containers when it shuts down.
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(Sandy Ryza via tomwhite)
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Release 2.0.2-alpha - 2012-09-07
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@ -25,13 +25,23 @@
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public class CMgrCompletedContainersEvent extends ContainerManagerEvent {
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private List<ContainerId> containerToCleanup;
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public CMgrCompletedContainersEvent(List<ContainerId> containersToCleanup) {
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private Reason reason;
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public CMgrCompletedContainersEvent(List<ContainerId> containersToCleanup, Reason reason) {
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super(ContainerManagerEventType.FINISH_CONTAINERS);
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this.containerToCleanup = containersToCleanup;
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this.reason = reason;
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}
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public List<ContainerId> getContainersToCleanup() {
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return this.containerToCleanup;
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}
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public Reason getReason() {
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return reason;
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}
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public static enum Reason {
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ON_SHUTDOWN, BY_RESOURCEMANAGER
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}
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}
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@ -19,6 +19,9 @@
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package org.apache.hadoop.yarn.server.nodemanager;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Map;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.concurrent.ConcurrentMap;
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import java.util.concurrent.ConcurrentSkipListMap;
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@ -61,14 +64,24 @@ public class NodeManager extends CompositeService implements
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* Priority of the NodeManager shutdown hook.
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*/
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public static final int SHUTDOWN_HOOK_PRIORITY = 30;
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/**
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* Extra duration to wait for containers to be killed on shutdown.
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*/
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private static final int SHUTDOWN_CLEANUP_SLOP_MS = 1000;
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private static final Log LOG = LogFactory.getLog(NodeManager.class);
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protected final NodeManagerMetrics metrics = NodeManagerMetrics.create();
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private ApplicationACLsManager aclsManager;
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private NodeHealthCheckerService nodeHealthChecker;
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private LocalDirsHandlerService dirsHandler;
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private Context context;
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private AsyncDispatcher dispatcher;
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private ContainerManagerImpl containerManager;
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private static CompositeServiceShutdownHook nodeManagerShutdownHook;
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private long waitForContainersOnShutdownMillis;
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public NodeManager() {
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super(NodeManager.class.getName());
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}
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@ -115,7 +128,7 @@ public void init(Configuration conf) {
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containerTokenSecretManager = new NMContainerTokenSecretManager(conf);
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}
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Context context = new NMContext(containerTokenSecretManager);
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this.context = new NMContext(containerTokenSecretManager);
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this.aclsManager = new ApplicationACLsManager(conf);
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@ -131,7 +144,7 @@ public void init(Configuration conf) {
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addService(del);
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// NodeManager level dispatcher
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AsyncDispatcher dispatcher = new AsyncDispatcher();
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this.dispatcher = new AsyncDispatcher();
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nodeHealthChecker = new NodeHealthCheckerService();
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addService(nodeHealthChecker);
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@ -144,7 +157,7 @@ public void init(Configuration conf) {
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NodeResourceMonitor nodeResourceMonitor = createNodeResourceMonitor();
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addService(nodeResourceMonitor);
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ContainerManagerImpl containerManager =
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containerManager =
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createContainerManager(context, exec, del, nodeStatusUpdater,
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this.aclsManager, dirsHandler);
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addService(containerManager);
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@ -155,13 +168,20 @@ public void init(Configuration conf) {
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dispatcher.register(ContainerManagerEventType.class, containerManager);
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addService(dispatcher);
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DefaultMetricsSystem.initialize("NodeManager");
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// StatusUpdater should be added last so that it get started last
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// so that we make sure everything is up before registering with RM.
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addService(nodeStatusUpdater);
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waitForContainersOnShutdownMillis =
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conf.getLong(YarnConfiguration.NM_SLEEP_DELAY_BEFORE_SIGKILL_MS,
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YarnConfiguration.DEFAULT_NM_SLEEP_DELAY_BEFORE_SIGKILL_MS) +
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conf.getLong(YarnConfiguration.NM_PROCESS_KILL_WAIT_MS,
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YarnConfiguration.DEFAULT_NM_PROCESS_KILL_WAIT_MS) +
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SHUTDOWN_CLEANUP_SLOP_MS;
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super.init(conf);
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// TODO add local dirs to del
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}
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@ -178,9 +198,44 @@ public void start() {
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@Override
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public void stop() {
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cleanupContainers();
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super.stop();
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DefaultMetricsSystem.shutdown();
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}
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@SuppressWarnings("unchecked")
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private void cleanupContainers() {
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Map<ContainerId, Container> containers = context.getContainers();
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if (containers.isEmpty()) {
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return;
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}
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LOG.info("Containers still running on shutdown: " + containers.keySet());
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List<ContainerId> containerIds = new ArrayList<ContainerId>(containers.keySet());
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dispatcher.getEventHandler().handle(
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new CMgrCompletedContainersEvent(containerIds,
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CMgrCompletedContainersEvent.Reason.ON_SHUTDOWN));
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LOG.info("Waiting for containers to be killed");
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long waitStartTime = System.currentTimeMillis();
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while (!containers.isEmpty() &&
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System.currentTimeMillis() - waitStartTime < waitForContainersOnShutdownMillis) {
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try {
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Thread.sleep(1000);
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} catch (InterruptedException ex) {
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LOG.warn("Interrupted while sleeping on container kill", ex);
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}
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}
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// All containers killed
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if (containers.isEmpty()) {
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LOG.info("All containers in DONE state");
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} else {
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LOG.info("Done waiting for containers to be killed. Still alive: " +
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containers.keySet());
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}
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}
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public static class NMContext implements Context {
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@ -282,6 +337,11 @@ private void initAndStartNodeManager(Configuration conf, boolean hasToReboot) {
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NodeManager createNewNodeManager() {
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return new NodeManager();
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}
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// For testing
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ContainerManagerImpl getContainerManager() {
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return containerManager;
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}
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public static void main(String[] args) {
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Thread.setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler());
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@ -363,7 +363,8 @@ public void run() {
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.getContainersToCleanupList();
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if (containersToCleanup.size() != 0) {
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dispatcher.getEventHandler().handle(
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new CMgrCompletedContainersEvent(containersToCleanup));
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new CMgrCompletedContainersEvent(containersToCleanup,
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CMgrCompletedContainersEvent.Reason.BY_RESOURCEMANAGER));
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}
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List<ApplicationId> appsToCleanup =
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response.getApplicationsToCleanupList();
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@ -23,6 +23,8 @@
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import java.io.IOException;
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import java.net.InetSocketAddress;
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import java.nio.ByteBuffer;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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@ -593,9 +595,16 @@ public void handle(ContainerManagerEvent event) {
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(CMgrCompletedContainersEvent) event;
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for (ContainerId container : containersFinishedEvent
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.getContainersToCleanup()) {
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String diagnostic = "";
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if (containersFinishedEvent.getReason() ==
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CMgrCompletedContainersEvent.Reason.ON_SHUTDOWN) {
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diagnostic = "Container Killed on Shutdown";
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} else if (containersFinishedEvent.getReason() ==
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CMgrCompletedContainersEvent.Reason.BY_RESOURCEMANAGER) {
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diagnostic = "Container Killed by ResourceManager";
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}
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this.dispatcher.getEventHandler().handle(
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new ContainerKillEvent(container,
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"Container Killed by ResourceManager"));
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new ContainerKillEvent(container, diagnostic));
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}
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break;
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default:
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@ -0,0 +1,92 @@
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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.yarn.server.nodemanager;
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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.yarn.event.Dispatcher;
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import org.apache.hadoop.yarn.exceptions.YarnRemoteException;
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import org.apache.hadoop.yarn.factories.RecordFactory;
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import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
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import org.apache.hadoop.yarn.server.api.ResourceTracker;
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import org.apache.hadoop.yarn.server.api.protocolrecords.NodeHeartbeatRequest;
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import org.apache.hadoop.yarn.server.api.protocolrecords.NodeHeartbeatResponse;
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import org.apache.hadoop.yarn.server.api.protocolrecords.RegisterNodeManagerRequest;
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import org.apache.hadoop.yarn.server.api.protocolrecords.RegisterNodeManagerResponse;
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import org.apache.hadoop.yarn.server.api.records.HeartbeatResponse;
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import org.apache.hadoop.yarn.server.api.records.NodeStatus;
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import org.apache.hadoop.yarn.server.api.records.RegistrationResponse;
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import org.apache.hadoop.yarn.server.nodemanager.metrics.NodeManagerMetrics;
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/**
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* This class allows a node manager to run without without communicating with a
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* real RM.
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*/
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public class MockNodeStatusUpdater extends NodeStatusUpdaterImpl {
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static final Log LOG = LogFactory.getLog(MockNodeStatusUpdater.class);
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private static final RecordFactory recordFactory = RecordFactoryProvider
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.getRecordFactory(null);
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private ResourceTracker resourceTracker;
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public MockNodeStatusUpdater(Context context, Dispatcher dispatcher,
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NodeHealthCheckerService healthChecker, NodeManagerMetrics metrics) {
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super(context, dispatcher, healthChecker, metrics);
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resourceTracker = new MockResourceTracker();
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}
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@Override
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protected ResourceTracker getRMClient() {
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return resourceTracker;
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}
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private static class MockResourceTracker implements ResourceTracker {
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private int heartBeatID;
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@Override
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public RegisterNodeManagerResponse registerNodeManager(
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RegisterNodeManagerRequest request) throws YarnRemoteException {
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RegistrationResponse regResponse = recordFactory
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.newRecordInstance(RegistrationResponse.class);
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RegisterNodeManagerResponse response = recordFactory
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.newRecordInstance(RegisterNodeManagerResponse.class);
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response.setRegistrationResponse(regResponse);
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return response;
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}
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@Override
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public NodeHeartbeatResponse nodeHeartbeat(NodeHeartbeatRequest request)
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throws YarnRemoteException {
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NodeStatus nodeStatus = request.getNodeStatus();
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LOG.info("Got heartbeat number " + heartBeatID);
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nodeStatus.setResponseId(heartBeatID++);
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HeartbeatResponse response = recordFactory
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.newRecordInstance(HeartbeatResponse.class);
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response.setResponseId(heartBeatID);
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NodeHeartbeatResponse nhResponse = recordFactory
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.newRecordInstance(NodeHeartbeatResponse.class);
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nhResponse.setHeartbeatResponse(response);
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return nhResponse;
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}
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}
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}
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@ -0,0 +1,222 @@
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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.yarn.server.nodemanager;
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import java.io.BufferedReader;
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import java.io.BufferedWriter;
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import java.io.File;
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import java.io.FileReader;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import junit.framework.Assert;
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import org.apache.hadoop.fs.FileContext;
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import org.apache.hadoop.fs.Path;
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import org.apache.hadoop.fs.UnsupportedFileSystemException;
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import org.apache.hadoop.yarn.api.protocolrecords.GetContainerStatusRequest;
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import org.apache.hadoop.yarn.api.protocolrecords.StartContainerRequest;
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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.ContainerLaunchContext;
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import org.apache.hadoop.yarn.api.records.ContainerState;
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import org.apache.hadoop.yarn.api.records.ContainerStatus;
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import org.apache.hadoop.yarn.api.records.LocalResource;
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import org.apache.hadoop.yarn.api.records.LocalResourceType;
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import org.apache.hadoop.yarn.api.records.LocalResourceVisibility;
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import org.apache.hadoop.yarn.api.records.Resource;
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import org.apache.hadoop.yarn.api.records.URL;
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import org.apache.hadoop.yarn.conf.YarnConfiguration;
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import org.apache.hadoop.yarn.event.Dispatcher;
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import org.apache.hadoop.yarn.factories.RecordFactory;
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import org.apache.hadoop.yarn.factory.providers.RecordFactoryProvider;
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import org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl;
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import org.apache.hadoop.yarn.util.ConverterUtils;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.Test;
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public class TestNodeManagerShutdown {
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static final File basedir =
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new File("target", TestNodeManagerShutdown.class.getName());
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static final File tmpDir = new File(basedir, "tmpDir");
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static final File logsDir = new File(basedir, "logs");
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static final File remoteLogsDir = new File(basedir, "remotelogs");
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static final File nmLocalDir = new File(basedir, "nm0");
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static final File processStartFile = new File(tmpDir, "start_file.txt")
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.getAbsoluteFile();
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static final RecordFactory recordFactory = RecordFactoryProvider
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.getRecordFactory(null);
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static final String user = "nobody";
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private FileContext localFS;
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@Before
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public void setup() throws UnsupportedFileSystemException {
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localFS = FileContext.getLocalFSFileContext();
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tmpDir.mkdirs();
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logsDir.mkdirs();
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remoteLogsDir.mkdirs();
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nmLocalDir.mkdirs();
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}
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@After
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public void tearDown() throws IOException, InterruptedException {
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localFS.delete(new Path(basedir.getPath()), true);
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}
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@Test
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public void testKillContainersOnShutdown() throws IOException {
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NodeManager nm = getNodeManager();
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nm.init(createNMConfig());
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nm.start();
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ContainerManagerImpl containerManager = nm.getContainerManager();
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File scriptFile = createUnhaltingScriptFile();
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ContainerLaunchContext containerLaunchContext =
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recordFactory.newRecordInstance(ContainerLaunchContext.class);
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// Construct the Container-id
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ContainerId cId = createContainerId();
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containerLaunchContext.setContainerId(cId);
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containerLaunchContext.setUser(user);
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URL localResourceUri =
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ConverterUtils.getYarnUrlFromPath(localFS
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.makeQualified(new Path(scriptFile.getAbsolutePath())));
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LocalResource localResource =
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recordFactory.newRecordInstance(LocalResource.class);
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localResource.setResource(localResourceUri);
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localResource.setSize(-1);
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localResource.setVisibility(LocalResourceVisibility.APPLICATION);
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localResource.setType(LocalResourceType.FILE);
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localResource.setTimestamp(scriptFile.lastModified());
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String destinationFile = "dest_file";
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Map<String, LocalResource> localResources =
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new HashMap<String, LocalResource>();
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localResources.put(destinationFile, localResource);
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containerLaunchContext.setLocalResources(localResources);
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containerLaunchContext.setUser(containerLaunchContext.getUser());
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List<String> commands = new ArrayList<String>();
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commands.add("/bin/bash");
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commands.add(scriptFile.getAbsolutePath());
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containerLaunchContext.setCommands(commands);
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containerLaunchContext.setResource(recordFactory
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.newRecordInstance(Resource.class));
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containerLaunchContext.getResource().setMemory(1024);
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StartContainerRequest startRequest = recordFactory.newRecordInstance(StartContainerRequest.class);
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startRequest.setContainerLaunchContext(containerLaunchContext);
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containerManager.startContainer(startRequest);
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GetContainerStatusRequest request =
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recordFactory.newRecordInstance(GetContainerStatusRequest.class);
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request.setContainerId(cId);
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ContainerStatus containerStatus =
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containerManager.getContainerStatus(request).getStatus();
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Assert.assertEquals(ContainerState.RUNNING, containerStatus.getState());
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try {Thread.sleep(5000);} catch (InterruptedException ex) {ex.printStackTrace();}
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nm.stop();
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// Now verify the contents of the file
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// Script generates a message when it receives a sigterm
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// so we look for that
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BufferedReader reader =
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new BufferedReader(new FileReader(processStartFile));
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|
||||
boolean foundSigTermMessage = false;
|
||||
while (true) {
|
||||
String line = reader.readLine();
|
||||
if (line == null) {
|
||||
break;
|
||||
}
|
||||
if (line.contains("SIGTERM")) {
|
||||
foundSigTermMessage = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
Assert.assertTrue("Did not find sigterm message", foundSigTermMessage);
|
||||
reader.close();
|
||||
}
|
||||
|
||||
private ContainerId createContainerId() {
|
||||
ApplicationId appId = recordFactory.newRecordInstance(ApplicationId.class);
|
||||
appId.setClusterTimestamp(0);
|
||||
appId.setId(0);
|
||||
ApplicationAttemptId appAttemptId =
|
||||
recordFactory.newRecordInstance(ApplicationAttemptId.class);
|
||||
appAttemptId.setApplicationId(appId);
|
||||
appAttemptId.setAttemptId(1);
|
||||
ContainerId containerId =
|
||||
recordFactory.newRecordInstance(ContainerId.class);
|
||||
containerId.setApplicationAttemptId(appAttemptId);
|
||||
return containerId;
|
||||
}
|
||||
|
||||
private YarnConfiguration createNMConfig() {
|
||||
YarnConfiguration conf = new YarnConfiguration();
|
||||
conf.setInt(YarnConfiguration.NM_PMEM_MB, 5*1024); // 5GB
|
||||
conf.set(YarnConfiguration.NM_ADDRESS, "127.0.0.1:12345");
|
||||
conf.set(YarnConfiguration.NM_LOCALIZER_ADDRESS, "127.0.0.1:12346");
|
||||
conf.set(YarnConfiguration.NM_LOG_DIRS, logsDir.getAbsolutePath());
|
||||
conf.set(YarnConfiguration.NM_REMOTE_APP_LOG_DIR, remoteLogsDir.getAbsolutePath());
|
||||
conf.set(YarnConfiguration.NM_LOCAL_DIRS, nmLocalDir.getAbsolutePath());
|
||||
return conf;
|
||||
}
|
||||
|
||||
/**
|
||||
* Creates a script to run a container that will run forever unless
|
||||
* stopped by external means.
|
||||
*/
|
||||
private File createUnhaltingScriptFile() throws IOException {
|
||||
File scriptFile = new File(tmpDir, "scriptFile.sh");
|
||||
BufferedWriter fileWriter = new BufferedWriter(new FileWriter(scriptFile));
|
||||
fileWriter.write("#!/bin/bash\n\n");
|
||||
fileWriter.write("echo \"Running testscript for delayed kill\"\n");
|
||||
fileWriter.write("hello=\"Got SIGTERM\"\n");
|
||||
fileWriter.write("umask 0\n");
|
||||
fileWriter.write("trap \"echo $hello >> " + processStartFile + "\" SIGTERM\n");
|
||||
fileWriter.write("echo \"Writing pid to start file\"\n");
|
||||
fileWriter.write("echo $$ >> " + processStartFile + "\n");
|
||||
fileWriter.write("while true; do\nsleep 1s;\ndone\n");
|
||||
|
||||
fileWriter.close();
|
||||
return scriptFile;
|
||||
}
|
||||
|
||||
private NodeManager getNodeManager() {
|
||||
return new NodeManager() {
|
||||
@Override
|
||||
protected NodeStatusUpdater createNodeStatusUpdater(Context context,
|
||||
Dispatcher dispatcher, NodeHealthCheckerService healthChecker) {
|
||||
MockNodeStatusUpdater myNodeStatusUpdater = new MockNodeStatusUpdater(
|
||||
context, dispatcher, healthChecker, metrics);
|
||||
return myNodeStatusUpdater;
|
||||
}
|
||||
};
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user