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From Peter Schuller <>
Subject Re: compaction strategy
Date Sat, 07 May 2011 16:44:21 GMT
> If you are seeing 600 pending compaction tasks regularly you almost
> definitely need more hardware.

Note that pending compactions is pretty misleading and you can't
really draw conclusions just based on the pending compactions
number/graph. For example, standard behavior during e.g.a  long repair
may end up accumulating thousands of pending compactions that suddenly
drop to zero once you're done and a bunch of tasks that don't actually
need to do anything are "completed". With the concurrent compaction
support I suppose this will be mitigated as long as you don't hit your
concurrency limit.

/ Peter Schuller

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