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Posted to hdfs-dev@hadoop.apache.org by "Andrew Wang (JIRA)" <ji...@apache.org> on 2012/09/19 06:47:07 UTC

[jira] [Created] (HDFS-3957) Change MutableQuantiles to use a shared thread for rolling over metrics

Andrew Wang created HDFS-3957:
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             Summary: Change MutableQuantiles to use a shared thread for rolling over metrics
                 Key: HDFS-3957
                 URL: https://issues.apache.org/jira/browse/HDFS-3957
             Project: Hadoop HDFS
          Issue Type: Improvement
    Affects Versions: 2.0.3-alpha
            Reporter: Andrew Wang
            Assignee: Andrew Wang
            Priority: Minor


Each MutableQuantiles currently creates its own thread to rollover the histogram every interval. It'd be better to do this with a single, shared thread or executor, and do it with a ThreadFactory that names it properly.

Similar changes were made when porting MutableQuantiles to HBase in HBASE-6409, so this would also help keep them in sync.

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