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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4867) metaSave NPEs when there are invalid blocks in repl queue.
Date Wed, 12 Jun 2013 22:48:20 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13681715#comment-13681715
] 

Konstantin Shvachko commented on HDFS-4867:
-------------------------------------------

Oops, sorry.
                
> 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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