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From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ACCUMULO-2119) Ensure compactions don't block table deletion
Date Thu, 02 Jan 2014 15:50:50 GMT
Josh Elser created ACCUMULO-2119:
------------------------------------

             Summary: Ensure compactions don't block table deletion
                 Key: ACCUMULO-2119
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2119
             Project: Accumulo
          Issue Type: Improvement
    Affects Versions: 1.5.0
            Reporter: Josh Elser
            Priority: Minor


I was ingesting some data into an Accumulo instance. My TServer's heap was a little small
-- that, combined with a bug in my code that was writing very large keys, caused a minor compaction
to take a very long time.

I ultimately wanted to just delete the table and re-run my code with the bug fixed, but, despite
the table trying to be deleted, it looked like that table operation was blocked until the
minc finished. It seems plausible that we could interrupt that compaction, delete that in-memory
map, and unload the tablet so we can delete it.

It would be nice to interrupt the minor compaction when the table is trying to be deleted
so we can actually delete the table. I'm not positive if the same thing happens with a major
compaction, but I would assume so (if you're compacting a large tablet, you could also have
to wait order of 10's of minutes for your deletion to occur).



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