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Posted to issues@hbase.apache.org by "ramkrishna.s.vasudevan (JIRA)" <ji...@apache.org> on 2016/06/30 16:08:10 UTC

[jira] [Created] (HBASE-16156) In write heavy scenario creating in memory flushes leads to contention

ramkrishna.s.vasudevan created HBASE-16156:
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             Summary: In write heavy scenario creating in memory flushes leads to contention
                 Key: HBASE-16156
                 URL: https://issues.apache.org/jira/browse/HBASE-16156
             Project: HBase
          Issue Type: Sub-task
    Affects Versions: 2.0.0
            Reporter: ramkrishna.s.vasudevan
             Fix For: 2.0.0


In write heavy cases, the inmemory flushes blocks the write because it takes a update lock. Dumps show that it is causing heavy contention and leads to memstore filling up and so intern blocks the flush from happening sooner. This JIRA is to discuss optimal settings and then make suitable changes.



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