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From "Ravi Prakash (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4867) metaSave NPEs when there are invalid blocks in repl queue.
Date Wed, 05 Jun 2013 23:25:25 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13676481#comment-13676481
] 

Ravi Prakash commented on HDFS-4867:
------------------------------------

This may be because BeforeClass is initializing the cluster only once. In which case patches
for trunk and 2.0 will have to be updated too. Let me check.
                
> 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: 2.0.4-alpha, 0.23.8
>            Reporter: Kihwal Lee
>            Assignee: Plamen Jeliazkov
>             Fix For: 3.0.0, 2.0.5-alpha
>
>         Attachments: HDFS-4867.branch-0.23.patch, HDFS-4867.branch2.patch, HDFS-4867.branch2.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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