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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-5008) LeveldbRMStateStore database can grow substantially leading to long recovery times
Date Thu, 28 Apr 2016 14:31:12 GMT
Jason Lowe created YARN-5008:
--------------------------------

             Summary: LeveldbRMStateStore database can grow substantially leading to long
recovery times
                 Key: YARN-5008
                 URL: https://issues.apache.org/jira/browse/YARN-5008
             Project: Hadoop YARN
          Issue Type: Bug
          Components: resourcemanager
    Affects Versions: 2.7.0
            Reporter: Jason Lowe
            Assignee: Jason Lowe


On large clusters with high application churn the background compaction in leveldb may not
be able to keep up with the write rate.  This can lead to large leveldb databases that take
many minutes to recover despite not having very much real data in the database to load.  Most
the time is spent traversing tables full of keys that have been deleted.



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