Example usage for org.apache.hadoop.yarn.api.records YarnApplicationAttemptState LAUNCHED

Introduction

In this page you can find the example usage for org.apache.hadoop.yarn.api.records YarnApplicationAttemptState LAUNCHED.

Prototype

YarnApplicationAttemptState LAUNCHED

To view the source code for org.apache.hadoop.yarn.api.records YarnApplicationAttemptState LAUNCHED.

Click Source Link

Document

AppAttempt was launched

Usage

From source file:UnmanagedAMLauncher.java

License:Apache License

public boolean run() throws IOException, YarnException {
    LOG.info("Starting Client");

    // Connect to ResourceManager
    rmClient.start();//from  w  w w.j a v  a 2 s  .  co  m
    try {
        // Create launch context for app master
        LOG.info("Setting up application submission context for ASM");
        ApplicationSubmissionContext appContext = rmClient.createApplication()
                .getApplicationSubmissionContext();
        ApplicationId appId = appContext.getApplicationId();

        // set the application name
        appContext.setApplicationName(appName);

        // Set the priority for the application master
        Priority pri = Records.newRecord(Priority.class);
        pri.setPriority(amPriority);
        appContext.setPriority(pri);

        // Set the queue to which this application is to be submitted in the RM
        appContext.setQueue(amQueue);

        // Set up the container launch context for the application master
        ContainerLaunchContext amContainer = Records.newRecord(ContainerLaunchContext.class);
        appContext.setAMContainerSpec(amContainer);

        // unmanaged AM
        appContext.setUnmanagedAM(true);
        LOG.info("Setting unmanaged AM");

        // Submit the application to the applications manager
        LOG.info("Submitting application to ASM");
        rmClient.submitApplication(appContext);

        ApplicationReport appReport = monitorApplication(appId, EnumSet.of(YarnApplicationState.ACCEPTED,
                YarnApplicationState.KILLED, YarnApplicationState.FAILED, YarnApplicationState.FINISHED));

        if (appReport.getYarnApplicationState() == YarnApplicationState.ACCEPTED) {
            // Monitor the application attempt to wait for launch state
            ApplicationAttemptReport attemptReport = monitorCurrentAppAttempt(appId,
                    YarnApplicationAttemptState.LAUNCHED);
            ApplicationAttemptId attemptId = attemptReport.getApplicationAttemptId();
            LOG.info("Launching AM with application attempt id " + attemptId);
            // launch AM
            launchAM(attemptId);
            // Monitor the application for end state
            appReport = monitorApplication(appId, EnumSet.of(YarnApplicationState.KILLED,
                    YarnApplicationState.FAILED, YarnApplicationState.FINISHED));
        }

        YarnApplicationState appState = appReport.getYarnApplicationState();
        FinalApplicationStatus appStatus = appReport.getFinalApplicationStatus();

        LOG.info("App ended with state: " + appReport.getYarnApplicationState() + " and status: " + appStatus);

        boolean success;
        if (YarnApplicationState.FINISHED == appState && FinalApplicationStatus.SUCCEEDED == appStatus) {
            LOG.info("Application has completed successfully.");
            success = true;
        } else {
            LOG.info("Application did finished unsuccessfully." + " YarnState=" + appState.toString()
                    + ", FinalStatus=" + appStatus.toString());
            success = false;
        }

        return success;
    } finally {
        rmClient.stop();
    }
}

---