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https://issues.apache.org/jira/browse/HBASE-11626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14093070#comment-14093070
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Andrew Purtell commented on HBASE-11626:
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Sorry for the misunderstanding [~cuijianwei], I agree with your opinion.
> Region will be closed if user try to move it to an error destination server
> ---------------------------------------------------------------------------
>
> Key: HBASE-11626
> URL: https://issues.apache.org/jira/browse/HBASE-11626
> Project: HBase
> Issue Type: Improvement
> Components: master
> Affects Versions: 0.98.4
> Reporter: cuijianwei
> Priority: Minor
>
> When moving region to a destination server by hbase shell command, such as:
> {code}
> move '7dbe79eb3a77df085c8546b2ee540e7f', 'localhost,58220,1406806842691'
> {code}
> user could pass an error destination server name, such as misspellinging the
> server name. Then, HMaster will close the region firstly and then assign the
> region to a random server when finding the destination server is not online,
> and the region can not serve before it is online again. Do we need to check
> the destination server name corresponds to an online server before closing
> region?(in HMaster.move(...))
> {code}
> ...
> if (destServerName == null || destServerName.length == 0) {
> ....
> } else {
> dest = ServerName.valueOf(Bytes.toString(destServerName));
> if (dest.equals(regionState.getServerName())) {
> ...
> }
> // ### check the destination sever is online before closing region ###
> }
> ...
> {code}
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