Examples with CMgrSignalContainersEvent org.apache.hadoop.yarn.server.nodemanager.CMgrSignalContainersEvent used on opensource projects

Example 1 with CMgrSignalContainersEvent

use of org.apache.hadoop.yarn.server.nodemanager.CMgrSignalContainersEvent in project hadoop by apache.

the class ContainerManagerImpl method handle.

@SuppressWarnings("unchecked")
@Override
public void handle(ContainerManagerEvent event) {
    switch(event.getType()) {
        case FINISH_APPS:
            CMgrCompletedAppsEvent appsFinishedEvent = (CMgrCompletedAppsEvent) event;
            for (ApplicationId appID : appsFinishedEvent.getAppsToCleanup()) {
                Application app = this.context.getApplications().get(appID);
                if (app == null) {
                    LOG.warn("couldn't find application " + appID + " while processing" + " FINISH_APPS event");
                    continue;
                }
                boolean shouldDropEvent = false;
                for (Container container : app.getContainers().values()) {
                    if (container.isRecovering()) {
                        LOG.info("drop FINISH_APPS event to " + appID + " because " + "container " + container.getContainerId() + " is recovering");
                        shouldDropEvent = true;
                        break;
                    }
                }
                if (shouldDropEvent) {
                    continue;
                }
                String diagnostic = "";
                if (appsFinishedEvent.getReason() == CMgrCompletedAppsEvent.Reason.ON_SHUTDOWN) {
                    diagnostic = "Application killed on shutdown";
                } else if (appsFinishedEvent.getReason() == CMgrCompletedAppsEvent.Reason.BY_RESOURCEMANAGER) {
                    diagnostic = "Application killed by ResourceManager";
                }
                this.dispatcher.getEventHandler().handle(new ApplicationFinishEvent(appID, diagnostic));
            }
            break;
        case FINISH_CONTAINERS:
            CMgrCompletedContainersEvent containersFinishedEvent = (CMgrCompletedContainersEvent) event;
            for (ContainerId containerId : containersFinishedEvent.getContainersToCleanup()) {
                ApplicationId appId = containerId.getApplicationAttemptId().getApplicationId();
                Application app = this.context.getApplications().get(appId);
                if (app == null) {
                    LOG.warn("couldn't find app " + appId + " while processing" + " FINISH_CONTAINERS event");
                    continue;
                }
                Container container = app.getContainers().get(containerId);
                if (container == null) {
                    LOG.warn("couldn't find container " + containerId + " while processing FINISH_CONTAINERS event");
                    continue;
                }
                if (container.isRecovering()) {
                    LOG.info("drop FINISH_CONTAINERS event to " + containerId + " because container is recovering");
                    continue;
                }
                this.dispatcher.getEventHandler().handle(new ContainerKillEvent(containerId, ContainerExitStatus.KILLED_BY_RESOURCEMANAGER, "Container Killed by ResourceManager"));
            }
            break;
        case DECREASE_CONTAINERS_RESOURCE:
            CMgrDecreaseContainersResourceEvent containersDecreasedEvent = (CMgrDecreaseContainersResourceEvent) event;
            for (org.apache.hadoop.yarn.api.records.Container container : containersDecreasedEvent.getContainersToDecrease()) {
                try {
                    changeContainerResourceInternal(container.getId(), container.getVersion(), container.getResource(), false);
                } catch (YarnException e) {
                    LOG.error("Unable to decrease container resource", e);
                } catch (IOException e) {
                    LOG.error("Unable to update container resource in store", e);
                }
            }
            break;
        case SIGNAL_CONTAINERS:
            CMgrSignalContainersEvent containersSignalEvent = (CMgrSignalContainersEvent) event;
            for (SignalContainerRequest request : containersSignalEvent.getContainersToSignal()) {
                internalSignalToContainer(request, "ResourceManager");
            }
            break;
        default:
            throw new YarnRuntimeException("Got an unknown ContainerManagerEvent type: " + event.getType());
    }
}

Example 2 with CMgrSignalContainersEvent

use of org.apache.hadoop.yarn.server.nodemanager.CMgrSignalContainersEvent in project hadoop by apache.

the class TestContainerManager method testContainerLaunchAndSignal.

// Verify signal container request can be delivered from
// NodeStatusUpdaterImpl to ContainerExecutor.
private void testContainerLaunchAndSignal(SignalContainerCommand command) throws IOException, InterruptedException, YarnException {
    Signal signal = ContainerLaunch.translateCommandToSignal(command);
    containerManager.start();
    File scriptFile = new File(tmpDir, "scriptFile.sh");
    PrintWriter fileWriter = new PrintWriter(scriptFile);
    File processStartFile = new File(tmpDir, "start_file.txt").getAbsoluteFile();
    // So that start file is readable by the test
    fileWriter.write("\numask 0");
    fileWriter.write("\necho Hello World! > " + processStartFile);
    fileWriter.write("\necho $$ >> " + processStartFile);
    fileWriter.write("\nexec sleep 1000s");
    fileWriter.close();
    ContainerLaunchContext containerLaunchContext = recordFactory.newRecordInstance(ContainerLaunchContext.class);
    // ////// Construct the Container-id
    ContainerId cId = createContainerId(0);
    URL resource_alpha = URL.fromPath(localFS.makeQualified(new Path(scriptFile.getAbsolutePath())));
    LocalResource rsrc_alpha = recordFactory.newRecordInstance(LocalResource.class);
    rsrc_alpha.setResource(resource_alpha);
    rsrc_alpha.setSize(-1);
    rsrc_alpha.setVisibility(LocalResourceVisibility.APPLICATION);
    rsrc_alpha.setType(LocalResourceType.FILE);
    rsrc_alpha.setTimestamp(scriptFile.lastModified());
    String destinationFile = "dest_file";
    Map<String, LocalResource> localResources = new HashMap<String, LocalResource>();
    localResources.put(destinationFile, rsrc_alpha);
    containerLaunchContext.setLocalResources(localResources);
    List<String> commands = new ArrayList<>();
    commands.add("/bin/bash");
    commands.add(scriptFile.getAbsolutePath());
    containerLaunchContext.setCommands(commands);
    StartContainerRequest scRequest = StartContainerRequest.newInstance(containerLaunchContext, createContainerToken(cId, DUMMY_RM_IDENTIFIER, context.getNodeId(), user, context.getContainerTokenSecretManager()));
    List<StartContainerRequest> list = new ArrayList<>();
    list.add(scRequest);
    StartContainersRequest allRequests = StartContainersRequest.newInstance(list);
    containerManager.startContainers(allRequests);
    int timeoutSecs = 0;
    while (!processStartFile.exists() && timeoutSecs++ < 20) {
        Thread.sleep(1000);
        LOG.info("Waiting for process start-file to be created");
    }
    Assert.assertTrue("ProcessStartFile doesn't exist!", processStartFile.exists());
    // Simulate NodeStatusUpdaterImpl sending CMgrSignalContainersEvent
    SignalContainerRequest signalReq = SignalContainerRequest.newInstance(cId, command);
    List<SignalContainerRequest> reqs = new ArrayList<>();
    reqs.add(signalReq);
    containerManager.handle(new CMgrSignalContainersEvent(reqs));
    final ArgumentCaptor<ContainerSignalContext> signalContextCaptor = ArgumentCaptor.forClass(ContainerSignalContext.class);
    if (signal.equals(Signal.NULL)) {
        verify(exec, never()).signalContainer(signalContextCaptor.capture());
    } else {
        verify(exec, timeout(10000).atLeastOnce()).signalContainer(signalContextCaptor.capture());
        ContainerSignalContext signalContext = signalContextCaptor.getAllValues().get(0);
        Assert.assertEquals(cId, signalContext.getContainer().getContainerId());
        Assert.assertEquals(signal, signalContext.getSignal());
    }
}