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From "Brian Bockelman (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-4675) Current Ganglia metrics implementation is incompatible with Ganglia 3.1
Date Sun, 29 Mar 2009 00:46:51 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-4675?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Brian Bockelman updated HADOOP-4675:

    Attachment: HADOOP-4675-v6.patch

Hm - found a bug in the v5 patch.  This next one currently uses the DNS class correctly as
Steve suggested.

This next one includes a test case for Ganglia -- it's quite simple.  All it does is configure
the MiniDFSCluster to report to Ganglia31, and then starts up a separate thread which listens
for metrics.  It verifies that the hostname is properly set inside the packet sent to Ganglia,
but does not verify that all the formatting is correct.

This appears to be the first test for Ganglia?  Probably should have written it awhile ago.

> Current Ganglia metrics implementation is incompatible with Ganglia 3.1
> -----------------------------------------------------------------------
>                 Key: HADOOP-4675
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4675
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: metrics
>    Affects Versions: 0.18.2
>            Reporter: Brian Bockelman
>             Fix For: 0.19.2, 0.20.0
>         Attachments: hadoop-4675-2.patch, hadoop-4675-3.patch, HADOOP-4675-4.patch, HADOOP-4675-v5.patch,
HADOOP-4675-v6.patch, hadoop-4675.patch
> Ganglia changed its wire protocol in the 3.1.x series; the current implementation only
works for 3.0.x.

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