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https://issues.apache.org/jira/browse/HBASE-18984?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16208505#comment-16208505
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Ted Yu commented on HBASE-18984:
--------------------------------

{code}
186         if (this.targetServer != null && !isServerOnline(env, 
targetServer)) {
187           LOG.info("Can not assign region to a dead target RegionServer:"
{code}
DEBUG logging should be enough.

> [AMv2] Retain assignment does not work well in AMv2
> ---------------------------------------------------
>
>                 Key: HBASE-18984
>                 URL: https://issues.apache.org/jira/browse/HBASE-18984
>             Project: HBase
>          Issue Type: Bug
>          Components: proc-v2
>    Affects Versions: 2.0.0
>            Reporter: Yi Liang
>            Assignee: Yi Liang
>             Fix For: 2.0.0
>
>         Attachments: HBASE-18984-V1-master.patch, Screen Shot 2017-10-10 at 
> 2.24.19 PM.png
>
>
> work on 8.17 Retain assignment in 
> https://docs.google.com/document/d/1eVKa7FHdeoJ1-9o8yZcOTAQbv0u0bblBlCCzVSIn69g/edit#heading=h.epjn9nege80k
> To reproduce this error, in hbase shell:
> createTable t1 --> list_regions 't1' --> disable 't1' ---> enable 't1' --> 
> list_reigons 't1' (maybe you need to try enable/disable multiple times)
> See attached images. same region assigned to different region servers



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