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Posted to hdfs-dev@hadoop.apache.org by "Harsh J (Created) (JIRA)" <ji...@apache.org> on 2011/10/18 05:54:12 UTC

[jira] [Created] (HDFS-2466) Need a public way to check DFS Safemode status

Need a public way to check DFS Safemode status
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                 Key: HDFS-2466
                 URL: https://issues.apache.org/jira/browse/HDFS-2466
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: hdfs client
    Affects Versions: 0.23.0
            Reporter: Harsh J
            Assignee: Harsh J
            Priority: Critical


The current way for a DFS client to check or set safemode status is via the private DistributedFileSystem instances.

While user/downstream (HBASE, PIG, HIVE) clients do not really need a way to "set" the safemode (doable by shell functions today), they can surely benefit from having a public API to check for safemode. Right now there is no way to do so.

I plan to introduce a safemode check via a new public, evolving API "HDFSAdmin" (DFSAdmin already seems taken up by shell).

(Part of HBASE-4510 can benefit from this, for example)

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[jira] [Resolved] (HDFS-2466) Need a public way to check DFS Safemode status

Posted by "Harsh J (Resolved) (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/HDFS-2466?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Harsh J resolved HDFS-2466.
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    Resolution: Duplicate

Sorry, this is a dupe of HDFS-2413
                
> Need a public way to check DFS Safemode status
> ----------------------------------------------
>
>                 Key: HDFS-2466
>                 URL: https://issues.apache.org/jira/browse/HDFS-2466
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs client
>    Affects Versions: 0.23.0
>            Reporter: Harsh J
>            Assignee: Harsh J
>            Priority: Critical
>
> The current way for a DFS client to check or set safemode status is via the private DistributedFileSystem instances.
> While user/downstream (HBASE, PIG, HIVE) clients do not really need a way to "set" the safemode (doable by shell functions today), they can surely benefit from having a public API to check for safemode. Right now there is no way to do so.
> I plan to introduce a safemode check via a new public, evolving API "HDFSAdmin" (DFSAdmin already seems taken up by shell).
> (Part of HBASE-4510 can benefit from this, for example)

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