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From "Charles Lamb (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7257) Add the time of last HA state transition to NN's /jmx page
Date Wed, 22 Oct 2014 00:32:34 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7257?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Charles Lamb updated HDFS-7257:
    Attachment: HDFS-7257.003.patch

Hi [~andrew.wang],

Thanks for the review!

I've uploaded .003 of the patch which changes back to Time.now(). It also changes the original
metric to LastTransitionTimeInMs (long, ms since epoch) and adds a new metric: LastTransitionTime
(String, dow mon hh:mm:ss zzz yyyy format).

Over to jenkins for his opinion.

> Add the time of last HA state transition to NN's /jmx page
> ----------------------------------------------------------
>                 Key: HDFS-7257
>                 URL: https://issues.apache.org/jira/browse/HDFS-7257
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namenode
>            Reporter: Charles Lamb
>            Assignee: Charles Lamb
>            Priority: Minor
>         Attachments: HDFS-7257.001.patch, HDFS-7257.002.patch, HDFS-7257.003.patch
> It would be useful to some monitoring apps to expose the last HA transition time in the
NN's /jmx page.

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