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From "Mike Drob (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (ACCUMULO-2359) compact range hanging indefinately
Date Fri, 18 Jul 2014 03:46:07 GMT

     [ https://issues.apache.org/jira/browse/ACCUMULO-2359?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mike Drob resolved ACCUMULO-2359.
---------------------------------

    Resolution: Cannot Reproduce

[~ecn] - Please re-open if the user sees this again on a newer version.

> compact range hanging indefinately
> ----------------------------------
>
>                 Key: ACCUMULO-2359
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2359
>             Project: Accumulo
>          Issue Type: Bug
>          Components: tserver
>    Affects Versions: 1.4.4
>         Environment: large production cluster
>            Reporter: Eric Newton
>
> A user pointed out to me that he's seen a range compaction hang.
> These compactions are run every day.  99% of the time they complete successfully.  But
twice, they have hung.
> The client is dutifully waiting for the RPC to the master to return.
> The master does not have a FATE transaction for the compaction, but the client's thread
is waiting for a compaction.  There were no table locks.
> There are no errors in the master.
> A tablet server was known to have died around the time the client requested the compaction.
 The tablets were all reassigned and recovered.
> There were no splits added to the tablet at any time during the request (or after).
> There's another very large table on the same system that is range compacted almost continuously,
and that has never hung.



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