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Posted to hdfs-dev@hadoop.apache.org by "Aaron T. Myers (Created) (JIRA)" <ji...@apache.org> on 2012/02/23 17:10:49 UTC

[jira] [Created] (HDFS-2997) Expose status of DNs from the NN programmatically

Expose status of DNs from the NN programmatically
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                 Key: HDFS-2997
                 URL: https://issues.apache.org/jira/browse/HDFS-2997
             Project: Hadoop HDFS
          Issue Type: New Feature
          Components: name-node
    Affects Versions: 0.23.1
            Reporter: Aaron T. Myers


Users who would like monitor the NN's view of DN health currently have two options: either parse the NN web UI, or call the (private API) DFSClient#datanodeReport. We should expose this in a nicer way, e.g. through metrics.

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[jira] [Resolved] (HDFS-2997) Expose status of DNs from the NN programmatically

Posted by "Aaron T. Myers (Resolved) (JIRA)" <ji...@apache.org>.

     [ https://issues.apache.org/jira/browse/HDFS-2997?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aaron T. Myers resolved HDFS-2997.
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          Resolution: Not A Problem
    Target Version/s:   (was: 0.23.2)

My mistake, Suresh. This info is indeed already present. Sorry for the noise.
                
> Expose status of DNs from the NN programmatically
> -------------------------------------------------
>
>                 Key: HDFS-2997
>                 URL: https://issues.apache.org/jira/browse/HDFS-2997
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: name-node
>            Reporter: Aaron T. Myers
>
> Users who would like monitor the NN's view of DN health currently have two options: either parse the NN web UI, or call the (private API) DFSClient#datanodeReport. We should expose this in a nicer way, e.g. through metrics.

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