chunhui shen created HBASE-5970:
-----------------------------------
Summary: Improve the AssignmentManager#updateTimer and speed up
handling opened event
Key: HBASE-5970
URL: https://issues.apache.org/jira/browse/HBASE-5970
Project: HBase
Issue Type: Improvement
Components: master
Reporter: chunhui shen
Assignee: chunhui shen
We found handing opened event very slow in the environment with lots of regions.
The problem is the slow AssignmentManager#updateTimer.
We do the test for bulk assigning 10w regions, the whole process of bulk
assigning took 1 hours.
2012-05-06 20:31:49,201 INFO org.apache.hadoop.hbase.master.AssignmentManager:
Bulk assigning 100000 region(s) round-robin across 5 server(s)
2012-05-06 21:26:32,103 INFO org.apache.hadoop.hbase.master.AssignmentManager:
Bulk assigning done
I think we could do the improvement for the AssignmentManager#updateTimer: Make
a thread do this work.
After the improvement, it took only 4.5mins
2012-05-07 11:03:36,581 INFO org.apache.hadoop.hbase.master.AssignmentManager:
Bulk assigning 100000 region(s) across 5 server(s), retainAssignment=true
2012-05-07 11:07:57,073 INFO org.apache.hadoop.hbase.master.AssignmentManager:
Bulk assigning done
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
