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https://issues.apache.org/jira/browse/HBASE-10049?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13852506#comment-13852506
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Jean-Marc Spaggiari commented on HBASE-10049:
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{quote}
Ps: For large clusters, we plan to dev a region_mover which can unload/load
multi regionservers at the same time
{quote}
Take a look at HBASE-8803 ;)
For the 20 seconds, I have opened HBASE-10202. I have few options in mind and
will provide a patch as soon as HBASE-8803 is commited.
For the login of "Moved ...." and "Moving ..." etc. I will see what we can do
to reduce the logging and keep all the information. Here again, few ideas in
mind. Will use HBAE-10202 too to submit them...
Thanks for your feedback! Very appreciated.
> Small improvments in region_mover.rb
> ------------------------------------
>
> Key: HBASE-10049
> URL: https://issues.apache.org/jira/browse/HBASE-10049
> Project: HBase
> Issue Type: Improvement
> Reporter: Liu Shaohui
> Assignee: Liu Shaohui
> Priority: Minor
> Fix For: 0.98.0, 0.94.15, 0.96.2
>
> Attachments: HBASE-10049-0.94-v1.diff, HBASE-10049-0.94-v2.diff,
> HBASE-10049-trunk-v1.diff
>
>
> We use region_mover.rb in the graceful upgrade of hbase cluster.
> Here are small improvements.
> a. remove the table.close(), because the htable could be reused.
> b. Add more info in the log of moving region.
> c. Add 20s sleep in load command to make sure the rs finished initialization
> of rpc server. There is a time gap between rs startup report and rpc server
> initialization.
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