Josh Elser created ACCUMULO-2119:
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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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