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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