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https://issues.apache.org/jira/browse/YARN-5375?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15381831#comment-15381831
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sandflee commented on YARN-5375:
--------------------------------
seems we could use a sync way to process scheduler event like, this will simple
the process and code.
{code}
@Override
protected EventHandler<SchedulerEvent> createSchedulerEventDispatcher() {
// Dispatch inline for test sanity
return new EventHandler<SchedulerEvent>() {
@Override
public void handle(SchedulerEvent event) {
scheduler.handle(event);
}
};
}
{code}
> invoke MockRM#drainEvents implicitly in MockRM methods to reduce test failures
> ------------------------------------------------------------------------------
>
> Key: YARN-5375
> URL: https://issues.apache.org/jira/browse/YARN-5375
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: sandflee
> Assignee: sandflee
> Attachments: YARN-5375.01.patch, YARN-5375.03.patch
>
>
> seen many test failures related to RMApp/RMAppattempt comes to some state but
> some event are not processed in rm event queue or scheduler event queue,
> cause test failure, seems we could implicitly invokes drainEvents(should also
> drain sheduler event) in some mockRM method like waitForState
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