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Posted to hdfs-dev@hadoop.apache.org by "Junping Du (JIRA)" <ji...@apache.org> on 2014/02/25 03:24:19 UTC

[jira] [Resolved] (HDFS-3746) Invalid counter tag in HDFS balancer which lead to infinite loop

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

Junping Du resolved HDFS-3746.
------------------------------

    Resolution: Cannot Reproduce

This issue has been fixed in HDFS-4261, let's resolve it as "Cannot Reproduce".

> 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
>             Fix For: 3.0.0, 2.4.0
>
>
> 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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