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https://issues.apache.org/jira/browse/HADOOP-1999?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Christian Kunz updated HADOOP-1999:
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Attachment: jstack.datanode
> DFSClients get stuck when running 'dfsadmin finalizeUpgrade'
> ------------------------------------------------------------
>
> Key: HADOOP-1999
> URL: https://issues.apache.org/jira/browse/HADOOP-1999
> Project: Hadoop
> Issue Type: Bug
> Components: dfs
> Affects Versions: 0.15.0
> Environment: Sep 14 nightly build
> Reporter: Christian Kunz
> Attachments: jstack.datanode
>
>
> I restarted namenode with -upgrade option, started a few scripts running
> hadoop command line utility to upload a few files into dfs, and ran at some
> time
> hadoop dfsadmin -finalizeUpgrade.
> At this time all the dfs clients I started before got stuck during block
> transmission.
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