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Posted to common-dev@hadoop.apache.org by "Brian Bockelman (JIRA)" <ji...@apache.org> on 2008/10/21 22:40:44 UTC
[jira] Updated: (HADOOP-4482) Hadoop JMX usage makes Nagios
monitoring impossible
[ https://issues.apache.org/jira/browse/HADOOP-4482?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Brian Bockelman updated HADOOP-4482:
------------------------------------
Attachment: jmx_name.patch
Make the bean name non-unique for the datanode.
> Hadoop JMX usage makes Nagios monitoring impossible
> ---------------------------------------------------
>
> Key: HADOOP-4482
> URL: https://issues.apache.org/jira/browse/HADOOP-4482
> Project: Hadoop Core
> Issue Type: Improvement
> Components: metrics
> Affects Versions: 0.18.1
> Reporter: Brian Bockelman
> Fix For: 0.19.1
>
> Attachments: jmx_name.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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