[HBASE-10645] Fix wrapping of Requests Counts Regionserver level metrics

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.94.15
• Fix Version/s: 0.94.22
• Component/s: regionserver
• Hadoop Flags: Reviewed
• Release Note: Changed request counts metric type from int to long.
• Assignee: deepankar
• Reporter: deepankar
• Created: 28/Feb/14 23:38
• Updated: 09/Aug/14 04:40
• Resolved: 23/Jul/14 18:49

Description

For aggregating the metrics from all of its regions HRegionServer is using int, while the underlying region level metrics use long. Due to this they get wrapped around giving out negative values if the regionserver is not restarted for a long time.