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From "Weiwei Yang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMBARI-12349) Datanode failed to start when use non-default dfs.datanode.data.dir.mount.file or net.topology.script.file.name
Date Thu, 09 Jul 2015 02:19:04 GMT

    [ https://issues.apache.org/jira/browse/AMBARI-12349?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14619749#comment-14619749
] 

Weiwei Yang commented on AMBARI-12349:
--------------------------------------

This is because rack_awareness.py only handles the creation of the file but not the parent
directory. Default value doesn't have this problem because the directory /etc/hadoop/conf
was created in yum install.

> Datanode failed to start when use non-default dfs.datanode.data.dir.mount.file or net.topology.script.file.name
> ---------------------------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-12349
>                 URL: https://issues.apache.org/jira/browse/AMBARI-12349
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-server
>    Affects Versions: 2.0.0
>            Reporter: Weiwei Yang
>            Priority: Critical
>             Fix For: 2.1.0
>
>   Original Estimate: 3h
>  Remaining Estimate: 3h
>
> When configure hadoop from install wizard, set "File that stores mount point" or "net.topology.script.file.name"
to a non default location, e.g 
> /etc/hadoop1/conf/dfs_data_dir_mount.hist
> /etc/hadoop1/conf/topology_script.py
> install failed because datanode could not be start, with error message
> Applying File['/etc/hadoop1/conf/topology_mappings.data'] failed, parent directory /etc/hadoop1/conf
doesn't exist



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