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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-3746) Invalid counter tag in HDFS balancer which lead to infinite loop
Date Tue, 09 Sep 2014 20:19:29 GMT

     [ https://issues.apache.org/jira/browse/HDFS-3746?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Allen Wittenauer updated HDFS-3746:
-----------------------------------
    Fix Version/s:     (was: 2.4.0)
                       (was: 3.0.0)

> Invalid counter tag in HDFS balancer which lead to infinite loop
> ----------------------------------------------------------------
>
>                 Key: HDFS-3746
>                 URL: https://issues.apache.org/jira/browse/HDFS-3746
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: balancer
>    Affects Versions: 2.0.0-alpha, 3.0.0
>            Reporter: meng gong
>            Assignee: meng gong
>              Labels: patch
>
> Everytime banlancer try to move a block cross the rack. For every NameNodeConnector it
will instance a new banlancer. The tag notChangedIterations is reseted to 0. Then it won't
reach 5 and exit the thread for not moved in 5 consecutive iterations. This lead to a infinite
loop



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