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Posted to hdfs-dev@hadoop.apache.org by "Todd Lipcon (JIRA)" <ji...@apache.org> on 2012/09/07 05:24:07 UTC

[jira] [Created] (HDFS-3899) QJM: Writer-side metrics

Todd Lipcon created HDFS-3899:
---------------------------------

             Summary: QJM: Writer-side metrics
                 Key: HDFS-3899
                 URL: https://issues.apache.org/jira/browse/HDFS-3899
             Project: Hadoop HDFS
          Issue Type: Sub-task
    Affects Versions: QuorumJournalManager (HDFS-3077)
            Reporter: Todd Lipcon
            Assignee: Todd Lipcon


We already have some metrics on the server side (JournalNode) but it's useful to also gather metrics from the client side (NameNode). This is important in order to monitor that the client is seeing good performance from the individual JNs, and so that administrators can set up alerts if any of the JNs has become inaccessible to the NN.

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[jira] [Resolved] (HDFS-3899) QJM: Writer-side metrics

Posted by "Todd Lipcon (JIRA)" <ji...@apache.org>.

     [ https://issues.apache.org/jira/browse/HDFS-3899?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Todd Lipcon resolved HDFS-3899.
-------------------------------

       Resolution: Fixed
    Fix Version/s: QuorumJournalManager (HDFS-3077)

Committed to branch, thx.
                
> QJM: Writer-side metrics
> ------------------------
>
>                 Key: HDFS-3899
>                 URL: https://issues.apache.org/jira/browse/HDFS-3899
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>    Affects Versions: QuorumJournalManager (HDFS-3077)
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>             Fix For: QuorumJournalManager (HDFS-3077)
>
>         Attachments: hdfs-3899.txt, hdfs-3899.txt
>
>
> We already have some metrics on the server side (JournalNode) but it's useful to also gather metrics from the client side (NameNode). This is important in order to monitor that the client is seeing good performance from the individual JNs, and so that administrators can set up alerts if any of the JNs has become inaccessible to the NN.

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