MAPREDUCE-4062. AM Launcher thread can hang forever (tgraves via bobby)
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1309037 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Robert Joseph Evans
parent
00eb28d927
commit
2b5c36b695
@ -226,6 +226,8 @@ Release 0.23.3 - UNRELEASED
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MAPREDUCE-4012 Hadoop Job setup error leaves no useful info to users
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(when LinuxTaskController is used). (tgraves)
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MAPREDUCE-4062. AM Launcher thread can hang forever (tgraves via bobby)
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Release 0.23.2 - UNRELEASED
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INCOMPATIBLE CHANGES
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@ -30,11 +30,4 @@ enum EventType {
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CONTAINER_REMOTE_CLEANUP
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}
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// Not a documented config. Only used for tests
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static final String MR_AM_NM_COMMAND_TIMEOUT = MRJobConfig.MR_AM_PREFIX
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+ "nm-command-timeout";
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/**
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* Maximum of 1 minute timeout for a Node to react to the command
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*/
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static final int DEFAULT_NM_COMMAND_TIMEOUT = 60000;
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}
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@ -23,8 +23,6 @@
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import java.security.PrivilegedAction;
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import java.util.HashSet;
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import java.util.Set;
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import java.util.Timer;
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import java.util.TimerTask;
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import java.util.concurrent.BlockingQueue;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.concurrent.LinkedBlockingQueue;
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@ -72,8 +70,6 @@ public class ContainerLauncherImpl extends AbstractService implements
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static final Log LOG = LogFactory.getLog(ContainerLauncherImpl.class);
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int nmTimeOut;
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private ConcurrentHashMap<ContainerId, Container> containers =
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new ConcurrentHashMap<ContainerId, Container>();
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private AppContext context;
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@ -83,7 +79,6 @@ public class ContainerLauncherImpl extends AbstractService implements
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private Thread eventHandlingThread;
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protected BlockingQueue<ContainerLauncherEvent> eventQueue =
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new LinkedBlockingQueue<ContainerLauncherEvent>();
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final Timer commandTimer = new Timer(true);
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YarnRPC rpc;
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private Container getContainer(ContainerId id) {
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@ -130,30 +125,18 @@ public synchronized void launch(ContainerRemoteLaunchEvent event) {
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"Container was killed before it was launched");
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return;
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}
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CommandTimerTask timerTask = new CommandTimerTask(Thread
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.currentThread(), event);
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final String containerManagerBindAddr = event.getContainerMgrAddress();
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ContainerId containerID = event.getContainerID();
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ContainerToken containerToken = event.getContainerToken();
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ContainerManager proxy = null;
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try {
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commandTimer.schedule(timerTask, nmTimeOut);
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proxy = getCMProxy(containerID, containerManagerBindAddr,
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containerToken);
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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 canceled the command in the mean while.
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String message = "Container launch failed for " + containerID
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+ " : Start-container for " + event.getContainerID()
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+ " got interrupted. Returning.";
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this.state = ContainerState.FAILED;
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sendContainerLaunchFailedMsg(taskAttemptID, message);
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return;
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}
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// Construct the actual Container
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ContainerLaunchContext containerLaunchContext =
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event.getContainer();
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@ -164,19 +147,6 @@ public synchronized void launch(ContainerRemoteLaunchEvent event) {
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startRequest.setContainerLaunchContext(containerLaunchContext);
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StartContainerResponse response = proxy.startContainer(startRequest);
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// container started properly. Stop the timer
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timerTask.cancel();
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if (Thread.interrupted()) {
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// The timer canceled the command in the mean while, but
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// startContainer didn't throw exception
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String message = "Container launch failed for " + containerID
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+ " : Start-container for " + event.getContainerID()
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+ " got interrupted. Returning.";
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this.state = ContainerState.FAILED;
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sendContainerLaunchFailedMsg(taskAttemptID, message);
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return;
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}
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ByteBuffer portInfo = response
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.getServiceResponse(ShuffleHandler.MAPREDUCE_SHUFFLE_SERVICEID);
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int port = -1;
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@ -198,17 +168,11 @@ public synchronized void launch(ContainerRemoteLaunchEvent event) {
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new TaskAttemptContainerLaunchedEvent(taskAttemptID, port));
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this.state = ContainerState.RUNNING;
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} catch (Throwable t) {
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if (Thread.interrupted()) {
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// The timer canceled the command in the mean while.
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LOG.info("Start-container for " + event.getContainerID()
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+ " got interrupted.");
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}
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String message = "Container launch failed for " + containerID + " : "
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+ StringUtils.stringifyException(t);
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this.state = ContainerState.FAILED;
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sendContainerLaunchFailedMsg(taskAttemptID, message);
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} finally {
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timerTask.cancel();
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if (proxy != null) {
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ContainerLauncherImpl.this.rpc.stopProxy(proxy, getConfig());
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}
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@ -220,41 +184,24 @@ public synchronized void kill(ContainerLauncherEvent event) {
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if(this.state == ContainerState.PREP) {
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this.state = ContainerState.KILLED_BEFORE_LAUNCH;
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} else {
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CommandTimerTask timerTask = new CommandTimerTask(Thread
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.currentThread(), event);
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final String containerManagerBindAddr = event.getContainerMgrAddress();
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ContainerId containerID = event.getContainerID();
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ContainerToken containerToken = event.getContainerToken();
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TaskAttemptId taskAttemptID = event.getTaskAttemptID();
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LOG.info("KILLING " + taskAttemptID);
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commandTimer.schedule(timerTask, nmTimeOut);
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ContainerManager proxy = null;
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try {
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proxy = getCMProxy(containerID, containerManagerBindAddr,
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containerToken);
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if (Thread.interrupted()) {
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// The timer canceled the command in the mean while. No need to
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// return, send cleaned up event anyways.
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LOG.info("Stop-container for " + event.getContainerID()
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+ " got interrupted.");
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} else {
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// kill the remote container if already launched
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StopContainerRequest stopRequest = Records
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.newRecord(StopContainerRequest.class);
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stopRequest.setContainerId(event.getContainerID());
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proxy.stopContainer(stopRequest);
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}
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} catch (Throwable t) {
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if (Thread.interrupted()) {
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// The timer canceled the command in the mean while, clear the
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// interrupt flag
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LOG.info("Stop-container for " + event.getContainerID()
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+ " got interrupted.");
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}
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} catch (Throwable t) {
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// ignore the cleanup failure
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String message = "cleanup failed for container "
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@ -264,15 +211,6 @@ public synchronized void kill(ContainerLauncherEvent event) {
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new TaskAttemptDiagnosticsUpdateEvent(taskAttemptID, message));
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LOG.warn(message);
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} finally {
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timerTask.cancel();
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if (Thread.interrupted()) {
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LOG.info("Stop-container for " + event.getContainerID()
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+ " got interrupted.");
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// ignore the cleanup failure
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context.getEventHandler().handle(
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new TaskAttemptDiagnosticsUpdateEvent(taskAttemptID,
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"cleanup failed for container " + event.getContainerID()));
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}
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if (proxy != null) {
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ContainerLauncherImpl.this.rpc.stopProxy(proxy, getConfig());
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}
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@ -303,8 +241,6 @@ public synchronized void init(Configuration config) {
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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 = createYarnRPC(conf);
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super.init(conf);
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}
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@ -409,44 +345,6 @@ public ContainerManager run() {
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return proxy;
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}
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private static class CommandTimerTask extends TimerTask {
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private final Thread commandThread;
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protected final String message;
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private boolean cancelled = false;
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public CommandTimerTask(Thread thread, ContainerLauncherEvent event) {
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super();
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this.commandThread = thread;
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this.message = "Couldn't complete " + event.getType() + " on "
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+ event.getContainerID() + "/" + event.getTaskAttemptID()
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+ ". Interrupting and returning";
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}
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@Override
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public void run() {
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synchronized (this) {
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if (this.cancelled) {
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return;
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}
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LOG.warn(this.message);
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StackTraceElement[] trace = this.commandThread.getStackTrace();
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StringBuilder logMsg = new StringBuilder();
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for (int i = 0; i < trace.length; i++) {
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logMsg.append("\n\tat " + trace[i]);
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}
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LOG.info("Stack trace of the command-thread: \n" + logMsg.toString());
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this.commandThread.interrupt();
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}
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}
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@Override
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public boolean cancel() {
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synchronized (this) {
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this.cancelled = true;
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return super.cancel();
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}
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}
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}
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/**
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* Setup and start the container on remote nodemanager.
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@ -21,6 +21,8 @@
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import static org.mockito.Mockito.mock;
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import java.io.IOException;
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import java.lang.reflect.UndeclaredThrowableException;
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import java.net.InetSocketAddress;
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import java.util.Map;
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import java.util.concurrent.ThreadPoolExecutor;
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import java.util.concurrent.atomic.AtomicInteger;
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@ -30,6 +32,7 @@
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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.ipc.Server;
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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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@ -44,18 +47,39 @@
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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.net.NetUtils;
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import org.apache.hadoop.yarn.api.ContainerManager;
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import org.apache.hadoop.yarn.api.protocolrecords.GetContainerStatusRequest;
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import org.apache.hadoop.yarn.api.protocolrecords.GetContainerStatusResponse;
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import org.apache.hadoop.yarn.api.protocolrecords.StartContainerRequest;
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import org.apache.hadoop.yarn.api.protocolrecords.StartContainerResponse;
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import org.apache.hadoop.yarn.api.protocolrecords.StopContainerRequest;
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import org.apache.hadoop.yarn.api.protocolrecords.StopContainerResponse;
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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.ContainerToken;
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import org.apache.hadoop.yarn.conf.YarnConfiguration;
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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.factory.providers.YarnRemoteExceptionFactoryProvider;
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import org.apache.hadoop.yarn.ipc.HadoopYarnProtoRPC;
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import org.apache.hadoop.yarn.ipc.YarnRPC;
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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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private static final RecordFactory recordFactory = RecordFactoryProvider
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.getRecordFactory(null);
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Configuration conf;
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Server server;
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static final Log LOG = LogFactory.getLog(TestContainerLauncher.class);
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@Test
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public void testPoolSize() throws InterruptedException {
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@ -104,10 +128,10 @@ public void testPoolSize() throws InterruptedException {
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Assert.assertEquals(10, containerLauncher.numEventsProcessed.get());
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containerLauncher.finishEventHandling = false;
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for (int i = 0; i < 10; i++) {
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ContainerId containerId =
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BuilderUtils.newContainerId(appAttemptId, i + 10);
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TaskAttemptId taskAttemptId =
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MRBuilderUtils.newTaskAttemptId(taskId, i + 10);
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ContainerId containerId = BuilderUtils.newContainerId(appAttemptId,
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i + 10);
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TaskAttemptId taskAttemptId = MRBuilderUtils.newTaskAttemptId(taskId,
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i + 10);
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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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@ -119,8 +143,7 @@ public void testPoolSize() throws InterruptedException {
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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 =
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11 + ContainerLauncherImpl.INITIAL_POOL_SIZE;
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containerLauncher.expectedCorePoolSize = 11 + ContainerLauncherImpl.INITIAL_POOL_SIZE;
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containerLauncher.finishEventHandling = false;
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ContainerId containerId = BuilderUtils.newContainerId(appAttemptId, 21);
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TaskAttemptId taskAttemptId = MRBuilderUtils.newTaskAttemptId(taskId, 21);
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@ -200,26 +223,28 @@ private void waitForEvents(CustomContainerLauncher containerLauncher,
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@Test
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public void testSlowNM() throws Exception {
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test(false);
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test();
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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() throws Exception {
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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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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 timeout low for the test
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conf.setInt("yarn.rpc.nm-command-timeout", 3000);
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conf.set(YarnConfiguration.IPC_RPC_IMPL, HadoopYarnProtoRPC.class.getName());
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YarnRPC rpc = YarnRPC.create(conf);
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String bindAddr = "localhost:0";
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InetSocketAddress addr = NetUtils.createSocketAddr(bindAddr);
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server = rpc.getServer(ContainerManager.class, new DummyContainerManager(),
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addr, conf, null, 1);
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server.start();
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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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MRApp app = new MRAppWithSlowNM();
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try {
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Job job = app.submit(conf);
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app.waitForState(job, JobState.RUNNING);
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@ -231,8 +256,8 @@ private void test(boolean swallowInterrupts) throws Exception {
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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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Assert.assertEquals("Num attempts is not correct", maxAttempts,
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attempts.size());
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TaskAttempt attempt = attempts.values().iterator().next();
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app.waitForState(attempt, TaskAttemptState.ASSIGNED);
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@ -241,20 +266,18 @@ private void test(boolean swallowInterrupts) throws Exception {
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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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Assert
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.assertTrue(diagnostics
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.contains("java.net.SocketTimeoutException: 3000 millis timeout while waiting for channel"));
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} finally {
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server.stop();
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app.stop();
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}
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}
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private final class CustomContainerLauncher extends ContainerLauncherImpl {
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@ -317,13 +340,10 @@ protected ContainerLauncherImpl.EventProcessor createEventProcessor(
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}
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}
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private static class MRAppWithSlowNM extends MRApp {
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private class MRAppWithSlowNM extends MRApp {
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final boolean swallowInterrupts;
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public MRAppWithSlowNM(boolean swallowInterrupts) {
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public MRAppWithSlowNM() {
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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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@ -333,20 +353,57 @@ protected ContainerLauncher createContainerLauncher(AppContext context) {
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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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// make proxy connect to our local containerManager server
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ContainerManager proxy = (ContainerManager) rpc.getProxy(
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ContainerManager.class,
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NetUtils.createSocketAddr("localhost:" + server.getPort()), conf);
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return proxy;
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}
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};
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};
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}
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}
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public class DummyContainerManager implements ContainerManager {
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private ContainerStatus status = null;
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@Override
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public GetContainerStatusResponse getContainerStatus(
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GetContainerStatusRequest request) throws YarnRemoteException {
|
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GetContainerStatusResponse response = recordFactory
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.newRecordInstance(GetContainerStatusResponse.class);
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response.setStatus(status);
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return response;
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}
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@Override
|
||||
public StartContainerResponse startContainer(StartContainerRequest request)
|
||||
throws YarnRemoteException {
|
||||
ContainerLaunchContext container = request.getContainerLaunchContext();
|
||||
StartContainerResponse response = recordFactory
|
||||
.newRecordInstance(StartContainerResponse.class);
|
||||
status = recordFactory.newRecordInstance(ContainerStatus.class);
|
||||
try {
|
||||
// make the thread sleep to look like its not going to respond
|
||||
Thread.sleep(15000);
|
||||
} catch (Exception e) {
|
||||
LOG.error(e);
|
||||
throw new UndeclaredThrowableException(e);
|
||||
}
|
||||
status.setState(ContainerState.RUNNING);
|
||||
status.setContainerId(container.getContainerId());
|
||||
status.setExitStatus(0);
|
||||
return response;
|
||||
}
|
||||
|
||||
@Override
|
||||
public StopContainerResponse stopContainer(StopContainerRequest request)
|
||||
throws YarnRemoteException {
|
||||
Exception e = new Exception("Dummy function", new Exception(
|
||||
"Dummy function cause"));
|
||||
throw YarnRemoteExceptionFactoryProvider.getYarnRemoteExceptionFactory(
|
||||
null).createYarnRemoteException(e);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -24,6 +24,8 @@
|
||||
import org.apache.hadoop.conf.Configuration;
|
||||
import org.apache.hadoop.ipc.ProtobufRpcEngine;
|
||||
import org.apache.hadoop.ipc.RPC;
|
||||
import org.apache.hadoop.net.NetUtils;
|
||||
import org.apache.hadoop.security.UserGroupInformation;
|
||||
import org.apache.hadoop.yarn.api.ContainerManager;
|
||||
import org.apache.hadoop.yarn.api.ContainerManagerPB;
|
||||
import org.apache.hadoop.yarn.api.protocolrecords.GetContainerStatusRequest;
|
||||
@ -38,6 +40,7 @@
|
||||
import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.StartContainerResponsePBImpl;
|
||||
import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.StopContainerRequestPBImpl;
|
||||
import org.apache.hadoop.yarn.api.protocolrecords.impl.pb.StopContainerResponsePBImpl;
|
||||
import org.apache.hadoop.yarn.conf.YarnConfiguration;
|
||||
import org.apache.hadoop.yarn.exceptions.YarnRemoteException;
|
||||
import org.apache.hadoop.yarn.exceptions.impl.pb.YarnRemoteExceptionPBImpl;
|
||||
import org.apache.hadoop.yarn.proto.YarnServiceProtos.GetContainerStatusRequestProto;
|
||||
@ -48,12 +51,25 @@
|
||||
|
||||
public class ContainerManagerPBClientImpl implements ContainerManager {
|
||||
|
||||
// Not a documented config. Only used for tests
|
||||
static final String NM_COMMAND_TIMEOUT = YarnConfiguration.YARN_PREFIX
|
||||
+ "rpc.nm-command-timeout";
|
||||
|
||||
/**
|
||||
* Maximum of 1 minute timeout for a Node to react to the command
|
||||
*/
|
||||
static final int DEFAULT_COMMAND_TIMEOUT = 60000;
|
||||
|
||||
private ContainerManagerPB proxy;
|
||||
|
||||
public ContainerManagerPBClientImpl(long clientVersion, InetSocketAddress addr, Configuration conf) throws IOException {
|
||||
RPC.setProtocolEngine(conf, ContainerManagerPB.class, ProtobufRpcEngine.class);
|
||||
UserGroupInformation ugi = UserGroupInformation.getCurrentUser();
|
||||
|
||||
int expireIntvl = conf.getInt(NM_COMMAND_TIMEOUT, DEFAULT_COMMAND_TIMEOUT);
|
||||
proxy = (ContainerManagerPB)RPC.getProxy(
|
||||
ContainerManagerPB.class, clientVersion, addr, conf);
|
||||
ContainerManagerPB.class, clientVersion, addr, ugi, conf,
|
||||
NetUtils.getDefaultSocketFactory(conf), expireIntvl);
|
||||
}
|
||||
|
||||
public void close() {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user