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https://issues.apache.org/jira/browse/HBASE-21345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17018353#comment-17018353
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Sakthi commented on HBASE-21345:
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This looks like a good addition candidate for branch-2.2+ as well. Any
objections if create a Jira for porting this to 2.2+ [~stack]?
> [hbck2] Allow version check to proceed even though master is 'initializing'.
> ----------------------------------------------------------------------------
>
> Key: HBASE-21345
> URL: https://issues.apache.org/jira/browse/HBASE-21345
> Project: HBase
> Issue Type: Bug
> Components: hbck2
> Reporter: Michael Stack
> Assignee: Michael Stack
> Priority: Major
> Fix For: 2.1.1, 2.0.3
>
> Attachments:
> 0001-HBASE-21345-hbck2-Allow-version-check-to-proceed-eve.patch,
> 0001-HBASE-21345-hbck2-Allow-version-check-to-proceed-eve.patch
>
>
> We recently added to hbck2 a check of the cluster version it is to go
> against. This means a getClusterMetrics call with the option HBASE_VERSION
> set.
> In testing, trying to fix a failed namespace assign on startup, hbck2 was
> shut out with a "PleaseHoldException".
> Let the getClusterMetrics call happen even during startup... so tooling can
> probe Master state externally.
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