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From "Jonathan Gray (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-3050) Limit maximum number of files to include in a major compaction
Date Wed, 29 Sep 2010 22:50:33 GMT
Limit maximum number of files to include in a major compaction
--------------------------------------------------------------

                 Key: HBASE-3050
                 URL: https://issues.apache.org/jira/browse/HBASE-3050
             Project: HBase
          Issue Type: New Feature
            Reporter: Jonathan Gray
            Assignee: Jonathan Gray
            Priority: Minor
             Fix For: 0.90.0


We had a situation where we had massively overrun compactions during a load tests.

A single store ended up with something like 200 store files.  This table also had large values,
like 1MB+.  A major compaction came in for the region and we OOME'd.

It would be useful to have a maximum number of files to include during a major compaction
as a just-in-case measure if we do manage to get this many files in there.  Can make it so
0 means infinite so there will be no change in default behavior.

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