[HBASE-12870] "Major compaction triggered" and "Skipping major compaction" messages lack the region information

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.3.1
• Fix Version/s: 1.4.0, 2.0.0
• Component/s: Compaction
• Labels: compaction patch
• Hadoop Flags: Reviewed
• Assignee: Chinmay Kulkarni
• Reporter: Hari Krishna Dara
• Created: 16/Jan/15 10:26
• Updated: 17/Jun/22 18:48
• Resolved: 03/May/17 21:10

Description

The below messages coming from RatioBasedCompactionPolicy log the default .toString() output of itself, which is not useful:

2015-01-16 06:15:07,166 DEBUG org.apache.hadoop.hbase.regionserver.compactions.RatioBasedCompactionPolicy: Major compaction triggered on store org.apache.hadoop.hbase.regionserver.compactions.ExploringCompactionPolicy@4acab1f5; time since last major compaction 339994249ms

2015-01-16 09:49:12,872 DEBUG org.apache.hadoop.hbase.regionserver.compactions.RatioBasedCompactionPolicy: Skipping major compaction of org.apache.hadoop.hbase.regionserver.compactions.ExploringCompactionPolicy@7b9f47bb because one (major) compacted file only and oldestTime 6795587394ms is < ttl=15552000000

It should log the store/region information instead. Unfortunately, this information seems to be unavailable at this point, so more context needs to be supplied while calling RatioBasedCompactionPolicy.isMajorCompaction().