Examples with FAILED com.hazelcast.jet.core.JobStatus.FAILED used on opensource projects

Example 6 with FAILED

use of com.hazelcast.jet.core.JobStatus.FAILED in project hazelcast-jet by hazelcast.

the class MasterContext method getInitResult.

/**
 * If there is no failure, then returns null. If the job is cancelled, then returns CancellationException.
 * If there is at least one non-restartable failure, such as an exception in user code, then returns that failure.
 * Otherwise, the failure is because a job participant has left the cluster.
 * In that case, TopologyChangeException is returned so that the job will be restarted.
 */
private Throwable getInitResult(Map<MemberInfo, Object> responses) {
    if (cancellationToken.isCompleted()) {
        logger.fine(jobIdString() + " to be cancelled after init");
        return new CancellationException();
    }
    Map<Boolean, List<Entry<MemberInfo, Object>>> grouped = groupResponses(responses);
    Collection<MemberInfo> successfulMembers = grouped.get(false).stream().map(Entry::getKey).collect(toList());
    if (successfulMembers.size() == executionPlanMap.size()) {
        logger.fine("Init of " + jobIdString() + " is successful.");
        return null;
    }
    List<Entry<MemberInfo, Object>> failures = grouped.get(true);
    logger.fine("Init of " + jobIdString() + " failed with: " + failures);
    // otherwise, return TopologyChangedException so that the job will be restarted
    return failures.stream().map(e -> (Throwable) e.getValue()).filter(t -> !isTopologicalFailure(t)).findFirst().map(ExceptionUtil::peel).orElse(new TopologyChangedException());
}