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https://issues.apache.org/jira/browse/HBASE-5916?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13268973#comment-13268973
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Hadoop QA commented on HBASE-5916:
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-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12525729/HBASE-5916_trunk_1.patch
against trunk revision .
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 6 new or modified tests.
-1 patch. The patch command could not apply the patch.
Console output:
https://builds.apache.org/job/PreCommit-HBASE-Build/1779//console
This message is automatically generated.
> RS restart just before master intialization we make the cluster non operative
> -----------------------------------------------------------------------------
>
> Key: HBASE-5916
> URL: https://issues.apache.org/jira/browse/HBASE-5916
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.92.1, 0.94.0
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Priority: Critical
> Fix For: 0.94.1
>
> Attachments: HBASE-5916_trunk.patch, HBASE-5916_trunk_1.patch,
> HBASE-5916_trunk_1.patch
>
>
> Consider a case where my master is getting restarted. RS that was alive when
> the master restart started, gets restarted before the master initializes the
> ServerShutDownHandler.
> {code}
> serverShutdownHandlerEnabled = true;
> {code}
> In this case when the RS tries to register with the master, the master will
> try to expire the server but the server cannot be expired as still the
> serverShutdownHandler is not enabled.
> This case may happen when i have only one RS gets restarted or all the RS
> gets restarted at the same time.(before assignRootandMeta).
> {code}
> LOG.info(message);
> if (existingServer.getStartcode() < serverName.getStartcode()) {
> LOG.info("Triggering server recovery; existingServer " +
> existingServer + " looks stale, new server:" + serverName);
> expireServer(existingServer);
> }
> {code}
> If another RS is brought up then the cluster comes back to normalcy.
> May be a very corner case.
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