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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-2575) Fault scenario of dead root drive on RS causes cluster lockup
Date Wed, 19 May 2010 23:30:53 GMT
Fault scenario of dead root drive on RS causes cluster lockup
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                 Key: HBASE-2575
                 URL: https://issues.apache.org/jira/browse/HBASE-2575
             Project: Hadoop HBase
          Issue Type: Bug
          Components: regionserver
    Affects Versions: 0.21.0
            Reporter: Todd Lipcon
            Priority: Critical


We performed a fault test where we physically pulled the root drive out of a machine while
it was on. The regionserver continued to run fine with existing clients. But any new clients
that tried to connect to it for RPC would not work correctly. So when I started a new client,
that client made no progress. Despite this, the RS continued to happily heartbeat to the master,
so the master did not remove it from the cluster. Note that in this case, we were logging
to NFS, and the logs continued to write, but no exceptions shown.

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