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https://issues.apache.org/jira/browse/HBASE-22040?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Duo Zhang updated HBASE-22040:
------------------------------
Release Note:
Add a mergeRegionsAsync(byte[][], boolean) method in the AsyncAdmin interface.
Instead of using assert, now we will throw IllegalArgumentException when you
want to merge less than 2 regions at client side. And also, at master side,
instead of using assert, now we will throw DoNotRetryIOException if you want
merge more than 2 regions, since we only support merging two regions at once
for now.
> Add mergeRegionsAsync with a List of region names method in AsyncAdmin
> ----------------------------------------------------------------------
>
> Key: HBASE-22040
> URL: https://issues.apache.org/jira/browse/HBASE-22040
> Project: HBase
> Issue Type: Sub-task
> Components: Admin, asyncclient, Client
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Priority: Major
> Fix For: 3.0.0, 2.2.0, 2.3.0
>
> Attachments: HBASE-22040-branch-2.patch, HBASE-22040-v1.patch,
> HBASE-22040-v2.patch, HBASE-22040-v3.patch, HBASE-22040.patch
>
>
> Although we only support merging two regions until now, but the rpc protocol
> does support passing more than two regions to master.
> So I think we should provide the methods, but need to add comments to say
> that for now we only support merging two regions so do not try to pass more
> than two regions.
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