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https://issues.apache.org/jira/browse/HBASE-8127?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13605616#comment-13605616
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Jeffrey Zhong commented on HBASE-8127:
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[~rajesh23] Thanks for the detailed comments.
{quote}
If I am not wrong HBASE-7824 patch applied at that time right?
{quote}
No. Actually with the {code}failedServers.remove(preMetaServer);{code} we don't
see any issue at all. The only problem is when we have non-empty dead severs
which are simulated by the reproduce-hang patch
Anyway, the opening RIT of disabled table which causing issues is on the live
RS not the one dies(or aborted) in the test. So the changes in SSH should not
have any impact IMHO.
> Region of a disabling or disabled table could be stuck in transition state
> when RS dies during Master initialization
> --------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-8127
> URL: https://issues.apache.org/jira/browse/HBASE-8127
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.94.5
> Reporter: Jeffrey Zhong
> Assignee: Jeffrey Zhong
> Fix For: 0.94.7
>
> Attachments: HBASE-8127_feedback.patch, HBASE-8127.patch,
> hbase-8127_v1.patch, reproduce-hang.patch
>
>
> The issue happens when a RS dies during a master starts up. After the RS
> reports open to the new master instance and dies immediately thereafter, the
> RITs of disabling tables(or disabled table) on the died RS will be in RIT
> state forever.
> I attached a patch to simulate the situation and you can run the following
> command to reproduce the issue:
> {code}mvn test -PlocalTests
> -Dtest=TestMasterFailover#testMasterFailoverWithMockedRITOnDeadRS{code}
> Basically, we skip regions of a dead server inside
> AM.processDeadServersAndRecoverLostRegions as the following code and relies
> on SSH to process those skipped regions:
> {code}
> for (Pair<HRegionInfo, Result> deadRegion : deadServer.getValue()) {
> nodes.remove(deadRegion.getFirst().getEncodedName());
> }
> {code}
> While in SSH, we skip regions of disabling(or disabled table) again by
> function processDeadRegion. Finally comes to the issue that RITs of
> disabling(or disabled table) stuck there forever.
>
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