[HBASE-1722] Add support for exporting HBase metrics via JMX

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.19.3
• Fix Version/s: 0.20.1
• Component/s: IPC/RPC, master, regionserver
• Hadoop Flags: Reviewed
• Assignee: Gary Helmling
• Reporter: Gary Helmling
• Created: 30/Jul/09 00:39
• Updated: 20/Nov/15 13:01
• Resolved: 12/Sep/09 20:51

Description

Current HBase metrics collection and reporting (for the 0.19 releases at least) doesn't seem to export any of the metrics as MBeans via JMX.

This patch adds JMX MBean support for reporting metrics collected in 3 areas:

• org.apache.hadoop.hbase.ipc.HBaseRpcMetrics
• org.apache.hadoop.hbase.master.metrics.MasterMetrics
• org.apache.hadoop.hbase.regionserver.metrics.RegionServerMetrics

This patch is only against the 0.19 branch, as the metrics API seems to have changed a bit in Hadoop 0.20, including adding support for dynamic MBeans. I'll add a patch reworked for trunk shortly.