[jira] [Created] (HBASE-8105) RegionServer Doesn't Rejoin Cluster after Netsplit

["philo vivero (JIRA)" <ji...@apache.org>]

philo vivero created HBASE-8105:
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             Summary: RegionServer Doesn't Rejoin Cluster after Netsplit
                 Key: HBASE-8105
                 URL: https://issues.apache.org/jira/browse/HBASE-8105
             Project: HBase
          Issue Type: Bug
          Components: regionserver
    Affects Versions: 0.92.1
         Environment: Linux Ubuntu 10.04 LTS
            Reporter: philo vivero


Running a 15-node HBase cluster. Testing various failure scenarios. Segregate one RegionServer from the cluster by firewalling off every port except SSH (because we need to be able to re-enable the node later).

After the RS is automatically removed from the cluster, we re-enable all ports again, but RS never rejoins the cluster.

I suspect the possibility this is desired behaviour, but haven't found proof so far. The code doesn't have any comment indicating this is the behaviour desired:

http://grepcode.com/file/repo1.maven.org/maven2/org.apache.hbase/hbase/0.92.2/org/apache/hadoop/hbase/regionserver/HRegionServer.java/

See lines starting at 624, public void run(). It makes it through the first try/catch block, but then loops inside the second try/catch block. Our hypothesis is that it never gets out naturally.

If we bounce the RegionServer process, then it rejoins the cluster.

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