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https://issues.apache.org/jira/browse/HDFS-5077?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Plamen Jeliazkov reassigned HDFS-5077:
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Assignee: Plamen Jeliazkov
> NPE in FSNamesystem.commitBlockSynchronization()
> ------------------------------------------------
>
> Key: HDFS-5077
> URL: https://issues.apache.org/jira/browse/HDFS-5077
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 2.0.5-alpha
> Reporter: Konstantin Shvachko
> Assignee: Plamen Jeliazkov
>
> NN starts a block recovery, which will synchronize block replicas on
> different DNs. In the end one of DNs will report the list of the nodes
> containing the consistent replicas to the NN via commitBlockSynchronization()
> call. The NPE happens if just before processing commitBlockSynchronization()
> NN removes from active one of DNs that are then reported in the call.
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