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From "Dian Fu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-6637) Rolling upgrade won't finish if SBN is configured without StandbyCheckpointer
Date Tue, 08 Jul 2014 05:55:34 GMT
Dian Fu created HDFS-6637:
-----------------------------

             Summary: Rolling upgrade won't finish if SBN is configured without StandbyCheckpointer
                 Key: HDFS-6637
                 URL: https://issues.apache.org/jira/browse/HDFS-6637
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: namenode
    Affects Versions: 3.0.0
            Reporter: Dian Fu


In HA setup cluster, for rolling upgrade, the image file "fsimage_rollback" is generated by
StandbyCheckpointer thread of SBN. While if configuration "dfs.ha.standby.checkpoints" is
set false, there will be no StandbyCheckpointer thread in SBN. This will lead to the rolling
upgrade never finish. 



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