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Posted to hdfs-issues@hadoop.apache.org by "Junping Du (JIRA)" <ji...@apache.org> on 2013/03/29 12:05:15 UTC

[jira] [Updated] (HDFS-4652) Node with one topology layer should be handled as fault topology when NodeGroup layer is enabled

     [ https://issues.apache.org/jira/browse/HDFS-4652?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Junping Du updated HDFS-4652:
-----------------------------

    Attachment: HDFS-4652.patch
    
> Node with one topology layer should be handled as fault topology when NodeGroup layer is enabled
> ------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-4652
>                 URL: https://issues.apache.org/jira/browse/HDFS-4652
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 1.1.2
>            Reporter: Junping Du
>            Assignee: Junping Du
>         Attachments: HDFS-4652.patch
>
>
> Currently, nodes with one layer topology are allowed to join in the cluster that with enabling NodeGroup layer which cause some exception cases. 
> When NodeGroup layer is enabled, the cluster should assumes that at least two layer (Rack/NodeGroup) is valid topology for each nodes, so should throw exceptions for one layer node in joining.

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