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https://issues.apache.org/jira/browse/HBASE-18984?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16210942#comment-16210942
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ramkrishna.s.vasudevan edited comment on HBASE-18984 at 10/19/17 12:34 PM:
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Now checked the code. I agree that marking OPENING is not needed in META if
AssignProcedure is idempotent. Can you be sure on this? Just wanted to get it
confirmed.
bq.// 2. UnAssignProcedure run first, this region will be assigned as OPEN. =>
wrong
So you mean this could happen now? Is there anyway we could avoid this?
was (Author: ram_krish):
Now checked the code. I agree that marking OPENING is not needed in META if
AssignProcedure is idempotent. Can you be sure on this? Just wanted to get it
confirmed.
bq.// 2. UnAssignProcedure run first, this region will be assigned as OPEN. =>
wrong
> [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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