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From "Tom White (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HDFS-412) Hadoop JMX usage makes Nagios monitoring impossible
Date Mon, 07 Sep 2009 10:45:57 GMT

     [ https://issues.apache.org/jira/browse/HDFS-412?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Tom White updated HDFS-412:

    Fix Version/s: 0.21.0
           Status: Patch Available  (was: Open)

Re-submitting to Hudson.

> Hadoop JMX usage makes Nagios monitoring impossible
> ---------------------------------------------------
>                 Key: HDFS-412
>                 URL: https://issues.apache.org/jira/browse/HDFS-412
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Brian Bockelman
>            Assignee: Brian Bockelman
>             Fix For: 0.21.0
>         Attachments: hadoop-4482.patch, hdfs-412.patch, jmx_name.patch, jmx_name_replaced.patch
> When Hadoop reports Datanode information to JMX, the bean uses the name "DataNode-" +
storageid.  The storage ID incorporates a random number and is unpredictable.
> This prevents me from monitoring DFS datanodes through Hadoop using the JMX interface;
in order to do that, you must be able to specify the bean name on the command line.
> The fix is simple, patch will be coming momentarily.  However, there was probably a reason
for making the datanodes all unique names which I'm unaware of, so it'd be nice to hear from
the metrics maintainer.

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