[HBASE-3647] Distinguish read and write request count in region

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.92.0
• Hadoop Flags: Reviewed
• Assignee: Ted Yu
• Reporter: Ted Yu
• Created: 15/Mar/11 18:19
• Updated: 20/Nov/15 12:43
• Resolved: 01/Apr/11 23:15

Description

Distinguishing read and write request counts, on top of HBASE-3507, would benefit load balancer.
The action for balancing read vs. write load should be different. For read load, region movement should be low (to keep scanner happy). For write load, region movement is allowed.
Now that we have cheap(er) counters, it should not be too burdensome keeping up the extra count.

Issue Links

• blocks: HBASE-3704 Show per region request count in table.jsp