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https://issues.apache.org/jira/browse/HBASE-3744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13017279#comment-13017279
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Ted Yu commented on HBASE-3744:
-------------------------------
Since AssignmentManager.assign() is outside BulkStartupAssigner and
SingleServerBulkAssigner. It needs a startup parameter so that decision of
whether to abort master can be made.
So BulkStartupAssigner and BulkTableAssigner would pass startup parameter to
SingleServerBulkAssigner.
The only difference between BulkStartupAssigner and BulkTableAssigner is in
their getUncaughtExceptionHandler() method. Meaning, we can write this:
{code}
static class BulkTableAssigner extends BulkStartupAssigner {
@Override
protected UncaughtExceptionHandler getUncaughtExceptionHandler() {
return new UncaughtExceptionHandler() {
@Override
public void uncaughtException(Thread t, Throwable e) {
LOG.error("Error assigning regions in " + t.getName(), e);
}
};
}
}
{code}
> createTable blocks until all regions are out of transition
> ----------------------------------------------------------
>
> Key: HBASE-3744
> URL: https://issues.apache.org/jira/browse/HBASE-3744
> Project: HBase
> Issue Type: Bug
> Components: master
> Affects Versions: 0.90.1
> Reporter: Todd Lipcon
> Assignee: Ted Yu
> Priority: Critical
> Fix For: 0.92.0
>
> Attachments: 3744.txt, 3744.txt
>
>
> In HBASE-3305, the behavior of createTable was changed and introduced this
> bug: createTable now blocks until all regions have been assigned, since it
> uses BulkStartupAssigner. BulkStartupAssigner.waitUntilDone calls
> assignmentManager.waitUntilNoRegionsInTransition, which waits across all
> regions, not just the regions of the table that has just been created.
> We saw an issue where one table had a region which was unable to be opened,
> so it was stuck in RegionsInTransition permanently (every open was failing).
> Since this was the case, waitUntilDone would always block indefinitely even
> though the newly created table had been assigned.
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