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https://issues.apache.org/jira/browse/HBASE-7327?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13582608#comment-13582608
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Jimmy Xiang commented on HBASE-7327:
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TOM is a safety net to protect some region from stuck in transition. Since
assignment is an async process, something could go wrong, right? Even for
thread pool, we need an unhandled exception handler. I think we do need some
safety net. We can make it light-weight and strong, if it is too heavy. I am
out of town now and have limited internet access. If Stack and Ram are also ok
with this idea, it is fine with me too. I just have a concern that
users/operations may need to come up some way to handle stuck region
transitions if we don't build it in. Ideally, region transition should not
stuck, but it could be, because of asynchronous, right?
> Assignment Timeouts: Remove the code from the master
> ----------------------------------------------------
>
> Key: HBASE-7327
> URL: https://issues.apache.org/jira/browse/HBASE-7327
> Project: HBase
> Issue Type: Improvement
> Components: master
> Affects Versions: 0.96.0
> Reporter: nkeywal
> Assignee: nkeywal
> Attachments: 7327.v1.uncomplete.patch, 7327.v2.patch
>
>
> As per HBASE-7247...
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