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

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.3-alpha
• Fix Version/s: 2.0.3-alpha
• Target Version/s: 2.0.3-alpha
• Hadoop Flags: Reviewed
• Assignee: Andrew Wang
• Reporter: Andrew Wang
• Created: 19/Sep/12 04:46
• Updated: 03/Sep/14 23:09
• Resolved: 25/Sep/12 23:16

Description

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.

Issue Links

• is related to: HBASE-6409 Create histogram class for metrics 2