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Jonathan Ellis updated CASSANDRA-4341: -------------------------------------- Reviewer: yukim Component/s: Core Priority: Minor (was: Major) Affects Version/s: 1.0.0 Fix Version/s: 1.1.2 Assignee: Jonathan Ellis Labels: compaction (was: ) Issue Type: Improvement (was: Bug) > Small SSTable Segments Can Hurt Leveling Process > ------------------------------------------------ > > Key: CASSANDRA-4341 > URL: https://issues.apache.org/jira/browse/CASSANDRA-4341 > Project: Cassandra > Issue Type: Improvement > Components: Core > Affects Versions: 1.0.0 > Reporter: Benjamin Coverston > Assignee: Jonathan Ellis > Priority: Minor > Labels: compaction > Fix For: 1.1.2 > > Attachments: 4341.txt > > > This concerns: > static int MAX_COMPACTING_L0 = 32; > Repair can create very small SSTable segments. We should consider moving to a > threshold that takes into account the size of the files brought into > compaction rather than the number of files for this and similar situations. > Bringing the small files from L0 to L1 magnifies the issue. > If there are too many very small files in L0 perhaps even an intermediate > compaction would even reduce the magnifying effect of a L0 to L1 compaction. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira