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From "rajeshbabu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-9593) Region server left in online regionservers list if the region server went down after registering to master and before creating ephemeral node
Date Fri, 20 Sep 2013 06:37:51 GMT
rajeshbabu created HBASE-9593:
---------------------------------

             Summary: Region server left in online regionservers list if the region server
went down after registering to master and before creating ephemeral node
                 Key: HBASE-9593
                 URL: https://issues.apache.org/jira/browse/HBASE-9593
             Project: HBase
          Issue Type: Bug
          Components: master
    Affects Versions: 0.94.11
            Reporter: rajeshbabu
            Assignee: rajeshbabu


In some of our tests we found that regionserer always showing online in master UI but its
actually dead.
If region server went down in the middle following steps then the region server always showing
in master online servers list.
1) register to master
2) create  ephemeral znode

Since no notification from zookeeper, master is not removing the expired server.
Assignments also failing if the RS is selected as destination server.
Some cases 
 

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