[jira] [Resolved] (HBASE-21788) OpenRegionProcedure (after recovery?) is unreliable and needs to be improved

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

     [ https://issues.apache.org/jira/browse/HBASE-21788?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Duo Zhang resolved HBASE-21788.
-------------------------------
    Resolution: Incomplete

We have done a bunch of fixes on AMv2 and PV2, resolve for now as no new findings for a long time.

> OpenRegionProcedure (after recovery?) is unreliable and needs to be improved
> ----------------------------------------------------------------------------
>
>                 Key: HBASE-21788
>                 URL: https://issues.apache.org/jira/browse/HBASE-21788
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 3.0.0-alpha-1
>            Reporter: Sergey Shelukhin
>            Assignee: Michael Stack
>            Priority: Critical
>         Attachments: WAL-Orphan.log
>
>
> Not much for this one yet.
> I repeatedly see the cases when the region is stuck in OPENING, and after master restart RIT is recovered, and stays WAITING; its OpenRegionProcedure (also recovered) is stuck in Runnable and never does anything for hours. I cannot find logs on the target server indicating that it ever tried to do anything after master restart.
> This procedure needs at the very least logging of what it's trying to do, and maybe a timeout so it unconditionally fails after a configurable period (1 hour?).
> I may also investigate why it doesn't do anything and file a separate bug. I wonder if it's somehow related to the region status check, but this is just a hunch.



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