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From "Marcus Eriksson (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-6851) Improve anticompaction after incremental repair
Date Thu, 13 Mar 2014 07:42:42 GMT
Marcus Eriksson created CASSANDRA-6851:
------------------------------------------

             Summary: Improve anticompaction after incremental repair
                 Key: CASSANDRA-6851
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6851
             Project: Cassandra
          Issue Type: Improvement
            Reporter: Marcus Eriksson
            Priority: Minor
             Fix For: 2.1 beta2


After an incremental repair we iterate over all sstables and split them in two parts, one
containing the repaired data and one the unrepaired. We could in theory double the number
of sstables on a node.

To avoid this we could make anticompaction also do a compaction, for example, if we are to
anticompact 10 sstables, we could anticompact those to 2.

Note that we need to avoid creating too big sstables though, if we anticompact all sstables
on a node it would essentially be a major compaction.



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