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From "Christian Kunz (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1999) DataNodes can become dead nodes when running 'dfsadmin finalizeUpgrade'
Date Wed, 10 Oct 2007 03:04:53 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1999?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12533578

Christian Kunz commented on HADOOP-1999:

Konstantin, I got he jstack much later after the -finalizeUpgrade, and the datanode was declared
a dead node by the nameserver a long time before.
But the issue might be fixed by HADOOP-1946.

> DataNodes can become dead nodes 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
>            Priority: Critical
>         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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