Jimmy Xiang created HBASE-6976:
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Summary: Change assignment related logging to TRACE level
Key: HBASE-6976
URL: https://issues.apache.org/jira/browse/HBASE-6976
Project: HBase
Issue Type: Improvement
Components: Region Assignment
Reporter: Jimmy Xiang
Priority: Minor
As JD and Elliot mentioned, turning off ZKAssign logging can improve AM
performance a lot. During the testing, I also noticed that: after all regions
are already opened, master UI still shows lots of regions in transition. It is
because AM hasn't finished the ZK event processing yet.
Changing the logging level from debug to trace will improve AM performance.
With HBASE-6611, I think AM is getting stable and reliable. I hope we don't
need to see these logging any more.
The logging is still available after turning trace logging level on for AM and
ZKAssign class.
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