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From "Harsh J (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2413) Add public APIs for safemode
Date Tue, 18 Oct 2011 04:46:11 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2413?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13129482#comment-13129482
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Harsh J commented on HDFS-2413:
-------------------------------

I like Srivas's idea, but its gonna be a behavior change at the moment. I think we should
pursue this on another ticket.

The remaining question for this issue is if we should add the API to a new class (say, 'HDFSAdmin',
since DFSAdmin seems limited for shell usage and is also marked for private audience), or
if we should support the whole of DFSAdmin with a new addition, publicly?
                
> Add public APIs for safemode
> ----------------------------
>
>                 Key: HDFS-2413
>                 URL: https://issues.apache.org/jira/browse/HDFS-2413
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs client
>    Affects Versions: 0.23.0
>            Reporter: Todd Lipcon
>            Assignee: Harsh J
>             Fix For: 0.23.0
>
>
> Currently the APIs for safe-mode are part of DistributedFileSystem, which is supposed
to be a private interface. However, dependent software often wants to wait until the NN is
out of safemode. Though it could poll trying to create a file and catching SafeModeException,
we should consider making some of these APIs public.

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