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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-19757) hbase:meta table gets stuck after enabling region server group feature
Date Fri, 12 Jan 2018 19:59:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-19757?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16324481#comment-16324481

Andrew Purtell commented on HBASE-19757:

For HBASE-19752, change the log level to WARN for the second case as described on the JIRA
and you have my +1.

As for this patch, 

// need to assign system table even if its group is null

I think the question is why is the RSGroup for the system table is null. Fix that and we don't
need this special case, which doesn't look quite right.

> hbase:meta table gets stuck after enabling region server group feature
> ----------------------------------------------------------------------
>                 Key: HBASE-19757
>                 URL: https://issues.apache.org/jira/browse/HBASE-19757
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Ted Yu
>            Assignee: Ted Yu
>         Attachments: 19757.v1.txt, 19757.v2.txt
> I was testing on an hbase-2 secure cluster against hadoop 3 where some tables were created
without region server group feature.
> After adding the RSGroupAdminEndpoint and RSGroupBasedLoadBalancer to hbase-site, I restarted
the whole cluster.
> After the restart, hbase:meta region got stuck in transition (forever).
> {code}
> 2018-01-10 21:20:16,696 INFO  [org.apache.hadoop.hbase.rsgroup.RSGroupInfoManagerImpl$RSGroupStartupWorker-ctr-e137-1514896590304-8706-01-000002.hwx.site,20000,1515619212617]
 zookeeper.MetaTableLocator: Failed verification of hbase:meta,,1 at address=ctr-e137-1514896590304-8706-01-000004.hwx.site,16020,1515618538016,
exception=org.apache.hadoop.    hbase.NotServingRegionException: hbase:meta,,1 is not online
on ctr-e137-1514896590304-8706-01-000004.hwx.site,16020,1515619181453
>         at org.apache.hadoop.hbase.regionserver.HRegionServer.getRegionByEncodedName(HRegionServer.java:3314)
>         at org.apache.hadoop.hbase.regionserver.HRegionServer.getRegion(HRegionServer.java:3291)
>         at org.apache.hadoop.hbase.regionserver.RSRpcServices.getRegion(RSRpcServices.java:1355)
>         at org.apache.hadoop.hbase.regionserver.RSRpcServices.getRegionInfo(RSRpcServices.java:1667)
> {code}

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