[HBASE-13245] Revamp mutation metrics

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 1.1.0, 2.0.0
• Component/s: metrics
• Assignee: Unassigned
• Reporter: Elliott Neil Clark
• Created: 15/Mar/15 05:39
• Updated: 23/Jun/22 20:44
• Resolved: 31/Mar/16 18:27

Description

Counts of deletes and puts ( called mutations in metrics ) are totally off.

The time for delete or mutate is really the time that a batch of mutations containing a put or delete. The same is true for count.

We should have:

• number of puts
• number of deletes
• time for batch mutations
• number of batch mutations
• histogram of number of mutations in each batch

That way it's less reading tea leaves and more explicit that things are batched and we don't have more fine grained info.