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Jonathan Ellis commented on CASSANDRA-2558: ------------------------------------------- +1 > Add "concurrent_compactions" configuration > ------------------------------------------ > > Key: CASSANDRA-2558 > URL: https://issues.apache.org/jira/browse/CASSANDRA-2558 > Project: Cassandra > Issue Type: Improvement > Components: Core > Affects Versions: 0.8 beta 1 > Reporter: Sylvain Lebresne > Assignee: Sylvain Lebresne > Priority: Trivial > Fix For: 0.8.1 > > Attachments: > 0001-Make-compaction-thread-number-configurable-v2.patch, > 0001-Make-compaction-thread-number-configurable.patch > > Original Estimate: 2h > Remaining Estimate: 2h > > We should expose a way to configure the max number of thread to use when > multi_threaded compaction is turned on. So far, it uses nb_of_processors > thread, which if you have many cores may be unreasonably high (as far as > random IO is concerned and thus independently of compaction throttling)... at > least unless you have SSD. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira