[HBASE-11683] Metrics for MOB

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: hbase-11339, 2.0.0
• Component/s: regionserver, Scanners
• Hadoop Flags: Reviewed

Release Note

Adds new mob related metrics:

mobCompactedIntoMobCellsCount
mobCompactedIntoMobCellsSize
mobCompactedFromMobCellsCount
mobCompactedFromMobCellsSize
mobFlushCount
mobFlushedCellsCount
mobFlushedCellsSize
mobScanCellsCount
mobScanCellsSize
mobFileCacheAccessCount
mobFileCacheMissCount
mobFileCacheHitPercent
mobFileCacheEvictedCount
mobFileCacheCount

• Assignee: Jingcheng Du
• Reporter: Jonathan Hsieh
• Created: 06/Aug/14 03:49
• Updated: 17/Jun/22 05:55
• Resolved: 30/Oct/14 14:12

Description

We need to make sure to capture metrics about mobs.
Some basic ones include:

1. of mob writes
2. of mob reads
3. avg size of mob
4. mob files
5. of mob compactions / sweeps

Issue Links

• is blocked by: HBASE-11646 Handle the MOB in compaction
• is blocked by: HBASE-11816 Initializing custom Metrics implementation failed in Mapper or Reducer