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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HDFS-4867) metaSave NPEs when there are invalid blocks in repl queue.
Date Thu, 06 Jun 2013 21:00:20 GMT

     [ https://issues.apache.org/jira/browse/HDFS-4867?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Konstantin Shvachko resolved HDFS-4867.
---------------------------------------

       Resolution: Fixed
    Fix Version/s:     (was: 2.0.5-alpha)
                       (was: 3.0.0)
                   0.23.9
                   2.1.0-beta
     Release Note: I just committed this. Thank you Plamen and Ravi.
     Hadoop Flags: Reviewed
    
> metaSave NPEs when there are invalid blocks in repl queue.
> ----------------------------------------------------------
>
>                 Key: HDFS-4867
>                 URL: https://issues.apache.org/jira/browse/HDFS-4867
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 0.23.7, 2.0.4-alpha, 0.23.8
>            Reporter: Kihwal Lee
>            Assignee: Plamen Jeliazkov
>             Fix For: 2.1.0-beta, 0.23.9
>
>         Attachments: HDFS-4867.branch-0.23.patch, HDFS-4867.branch-0.23.patch, HDFS-4867.branch-0.23.patch,
HDFS-4867.branch-0.23.patch, HDFS-4867.branch-2.patch, HDFS-4867.branch2.patch, HDFS-4867.branch2.patch,
HDFS-4867.branch2.patch, HDFS-4867.trunk.patch, HDFS-4867.trunk.patch, HDFS-4867.trunk.patch,
HDFS-4867.trunk.patch, testMetaSave.log
>
>
> Since metaSave cannot get the inode holding a orphaned/invalid block, it NPEs and stops
generating further report. Normally ReplicationMonitor removes them quickly, but if the queue
is huge, it takes very long time. Also in safe mode, they stay.

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