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https://issues.apache.org/jira/browse/HDFS-3548?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Colin Patrick McCabe reassigned HDFS-3548:
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Assignee: Colin Patrick McCabe
> NamenodeFsck.copyBlock fails to create a Block Reader
> -----------------------------------------------------
>
> Key: HDFS-3548
> URL: https://issues.apache.org/jira/browse/HDFS-3548
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: name-node
> Affects Versions: 0.23.1, 2.0.0-alpha
> Reporter: Todd Lipcon
> Assignee: Colin Patrick McCabe
> Priority: Critical
>
> NamenodeFsck.copyBlock creates a Socket using {{new Socket()}}, and thus that
> socket doesn't have an associated Channel. Then, it fails to create a
> BlockReader since RemoteBlockReader2 needs a socket channel.
> (thanks to Hiroshi Yokoi for reporting)
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