[HBASE-14314] Metrics for block cache should take region replicas into account

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.2.0, 1.3.0, 2.0.0
• Component/s: metrics, regionserver
• Hadoop Flags: Reviewed

Release Note

The following metrics for primary region replica are added:

blockCacheHitCountPrimary
blockCacheMissCountPrimary
blockCacheEvictionCountPrimary

• Assignee: Ted Yu
• Reporter: Ted Yu
• Created: 26/Aug/15 02:50
• Updated: 01/Jul/22 21:05
• Resolved: 09/Sep/15 20:34

Description

Currently metrics for block cache are aggregates in the sense that they don't distinguish primary from secondary / tertiary replicas.

This JIRA separates the block cache metrics for primary region replica from the aggregate.