Examples with CancelOptions org.apache.flink.client.cli.CancelOptions used on opensource projects

Example 1 with CancelOptions

use of org.apache.flink.client.cli.CancelOptions in project flink by apache.

the class CliFrontend method cancel.

/**
	 * Executes the CANCEL action.
	 * 
	 * @param args Command line arguments for the cancel action.
	 */
protected int cancel(String[] args) {
    LOG.info("Running 'cancel' command.");
    CancelOptions options;
    try {
        options = CliFrontendParser.parseCancelCommand(args);
    } catch (CliArgsException e) {
        return handleArgException(e);
    } catch (Throwable t) {
        return handleError(t);
    }
    // evaluate help flag
    if (options.isPrintHelp()) {
        CliFrontendParser.printHelpForCancel();
        return 0;
    }
    String[] cleanedArgs = options.getArgs();
    boolean withSavepoint = options.isWithSavepoint();
    String targetDirectory = options.getSavepointTargetDirectory();
    JobID jobId;
    // - cancel -s <targetDir> <jobID> => custom target dir (parsed correctly)
    if (cleanedArgs.length > 0) {
        String jobIdString = cleanedArgs[0];
        try {
            jobId = new JobID(StringUtils.hexStringToByte(jobIdString));
        } catch (Exception e) {
            LOG.error("Error: The value for the Job ID is not a valid ID.");
            System.out.println("Error: The value for the Job ID is not a valid ID.");
            return 1;
        }
    } else if (targetDirectory != null) {
        // Try this for case: cancel -s <jobID> (default savepoint target dir)
        String jobIdString = targetDirectory;
        try {
            jobId = new JobID(StringUtils.hexStringToByte(jobIdString));
            targetDirectory = null;
        } catch (Exception e) {
            LOG.error("Missing JobID in the command line arguments.");
            System.out.println("Error: Specify a Job ID to cancel a job.");
            return 1;
        }
    } else {
        LOG.error("Missing JobID in the command line arguments.");
        System.out.println("Error: Specify a Job ID to cancel a job.");
        return 1;
    }
    try {
        ActorGateway jobManager = getJobManagerGateway(options);
        Object cancelMsg;
        if (withSavepoint) {
            if (targetDirectory == null) {
                logAndSysout("Cancelling job " + jobId + " with savepoint to default savepoint directory.");
            } else {
                logAndSysout("Cancelling job " + jobId + " with savepoint to " + targetDirectory + ".");
            }
            cancelMsg = new CancelJobWithSavepoint(jobId, targetDirectory);
        } else {
            logAndSysout("Cancelling job " + jobId + ".");
            cancelMsg = new CancelJob(jobId);
        }
        Future<Object> response = jobManager.ask(cancelMsg, clientTimeout);
        final Object rc = Await.result(response, clientTimeout);
        if (rc instanceof CancellationSuccess) {
            if (withSavepoint) {
                CancellationSuccess success = (CancellationSuccess) rc;
                String savepointPath = success.savepointPath();
                logAndSysout("Cancelled job " + jobId + ". Savepoint stored in " + savepointPath + ".");
            } else {
                logAndSysout("Cancelled job " + jobId + ".");
            }
        } else if (rc instanceof CancellationFailure) {
            throw new Exception("Canceling the job with ID " + jobId + " failed.", ((CancellationFailure) rc).cause());
        } else {
            throw new IllegalStateException("Unexpected response: " + rc);
        }
        return 0;
    } catch (Throwable t) {
        return handleError(t);
    }
}