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Posted to issues@hbase.apache.org by "huaxiang sun (JIRA)" <ji...@apache.org> on 2017/03/15 23:49:41 UTC

[jira] [Created] (HBASE-17792) Use a shared thread pool for AtomicityWriter, AtomicGetReader, AtomicScanReader's connections in TestAcidGuarantees

huaxiang sun created HBASE-17792:
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             Summary: Use a shared thread pool for AtomicityWriter, AtomicGetReader, AtomicScanReader's connections in TestAcidGuarantees
                 Key: HBASE-17792
                 URL: https://issues.apache.org/jira/browse/HBASE-17792
             Project: HBase
          Issue Type: Bug
    Affects Versions: 2.0.0
            Reporter: huaxiang sun
            Assignee: huaxiang sun
            Priority: Minor


AtomicityWriter, AtomicGetReader, AtomicScanReader creates connection inside, since the thread pool is not shared, by default each connection will create 256 threads. If there are 5 AtomicityWriters, 1 AtomicGetReader, and 1 AtomicScanReader, it will create lots of threads and causes max user processes  to be reached, and OOME. Use a share thread pool to work around this issue.



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