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From "Arpit Gupta (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-5140) Too many safemode monitor threads being created in the standby namenode
Date Wed, 28 Aug 2013 18:02:52 GMT
Arpit Gupta created HDFS-5140:
---------------------------------

             Summary: Too many safemode monitor threads being created in the standby namenode
                 Key: HDFS-5140
                 URL: https://issues.apache.org/jira/browse/HDFS-5140
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: ha
    Affects Versions: 2.1.0-beta
            Reporter: Arpit Gupta
            Assignee: Jing Zhao
            Priority: Blocker


While running namenode load generator with 100 threads for 10 mins namenode was being failed
over ever 2 mins.
The standby namenode shut itself down as it ran out of memory and was not able to create another
thread.
When we searched for 'Safe mode extension entered' in the standby log it was present 55000+
times

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