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From "Mahadev konar (JIRA)" <j...@apache.org>
Subject [jira] [Reopened] (AMBARI-2513) Update hdfs-site config to new 'stale' configuration used in hadoop 1.2+
Date Mon, 29 Jul 2013 03:13:48 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-2513?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mahadev konar reopened AMBARI-2513:
-----------------------------------

    
> Update hdfs-site config to new 'stale' configuration used in hadoop 1.2+
> ------------------------------------------------------------------------
>
>                 Key: AMBARI-2513
>                 URL: https://issues.apache.org/jira/browse/AMBARI-2513
>             Project: Ambari
>          Issue Type: Bug
>          Components: controller
>    Affects Versions: 1.2.3
>            Reporter: Nate Cole
>            Assignee: Nate Cole
>             Fix For: 1.2.5
>
>         Attachments: AMBARI-2513.patch
>
>
> In Hadoop 1.2 which is shipped with HDP 1.3, the configuration in hdfs-site.xml for detecting
stale nodes has changed. Ambari still exposed the configuration for Hadoop 1.1.
> The old configuration needs to be removed:
> <!-- stale mode - branch 1.1.1+ -->
> <property>
> <name>dfs.namenode.check.stale.datanode</name>
> <value>true</value>
> </property>
> And replaced with the new configuration switches:
> <!-- stale mode - 1.2+ -->
> <property>
> <name>dfs.namenode.avoid.read.stale.datanode</name>
> <value>true</value>
> </property>
> <property>
> <name>dfs.namenode.avoid.write.stale.datanode</name>
> <value>true</value>
> </property>
> <property>
> <name>dfs.namenode.write.stale.datanode.ratio</name>
> <value>1.0f</value>
> </property>
> <property>
> <name>dfs.namenode.stale.datanode.interval</name>
> <value>30000</value>
> <description>Datanode is stale after not getting a heartbeat in this interval in
ms</description>
> </property>

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