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https://issues.apache.org/jira/browse/HBASE-21351?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16669501#comment-16669501
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Duo Zhang commented on HBASE-21351:
-----------------------------------
Review board link:
https://reviews.apache.org/r/69219/
> The force update thread may have race with PE worker when the procedure is
> rolling back
> ---------------------------------------------------------------------------------------
>
> Key: HBASE-21351
> URL: https://issues.apache.org/jira/browse/HBASE-21351
> Project: HBase
> Issue Type: Sub-task
> Components: proc-v2
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Priority: Critical
> Fix For: 3.0.0, 2.2.0, 2.0.3, 2.1.2
>
> Attachments: HBASE-21351-v1.patch, HBASE-21351.patch
>
>
> We will acquire the procExecutionLock for a procedure when force updating its
> state to prevent race with PE worker, but this does not work then the
> procedure is rolling back.
> If a procedure is failed, we will mark the root procedure stack as FAILED,
> and then start to rollback the whole procedure stack. We will pop every
> procedure in the stack and try to rollback them. So we may change the state
> of a procedure without holding its procExecutionLock when rolling back.
> This means we may persist an intermediate state of a procedure and cause
> corruption when loading procedures.
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