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https://issues.apache.org/jira/browse/HDFS-4867?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Konstantin Shvachko updated HDFS-4867:
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Release Note: (was: I just committed this. Thank you Plamen and Ravi.)
I just committed this. Thank you Plamen and Ravi.
> 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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