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From Peter Schuller <>
Subject Re: one question about cassandra write
Date Fri, 06 Aug 2010 22:35:08 GMT
> a) It is a major compaction [1]
> b) The old version was deleted/overwritten more than GCGraceSeconds ago [2]

c) and the memtable containing the delete/overwrite has been flushed.

(I suppose that's kinda obvious in retrospect, but it took me a little
bit to realize this was why a 'nodetool compact' was not clearing up
diskspace after bulk deletion even with GCGraceSeconds set to 0.)

/ Peter Schuller

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