[jira] [Commented] (HBASE-20752) Make sure the regions are truly reopened after ReopenTableRegionsProcedure

["Duo Zhang (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-20752?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16517922#comment-16517922 ] 

Duo Zhang commented on HBASE-20752:
-----------------------------------

The patch is ready but when testing I found that a region in OPEN state could have a -1 openSeqNum in the RegionStateNode, this is a bit strange. Digging.

> Make sure the regions are truly reopened after ReopenTableRegionsProcedure
> --------------------------------------------------------------------------
>
>                 Key: HBASE-20752
>                 URL: https://issues.apache.org/jira/browse/HBASE-20752
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Duo Zhang
>            Priority: Major
>             Fix For: 3.0.0, 2.1.0
>
>
> The MRP may fail due to some reason, so we need to add some checks in ReopenTableRegionsProcedure, if we fail to reopen a region, then we should schedule a new MRP for it again.
> And a future improvement maybe that, we can introduce a new type of procedure to reopen a region, where we just need a simple call to RS, and do not need to unassign it and assign it again.



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