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From "Jason (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-3422) Ganglia counter metrics are all reported with the metric name "value", so the counter values can not be seen
Date Mon, 20 Oct 2008 04:56:44 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-3422?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jason updated HADOOP-3422:
--------------------------

    Attachment: ganglia-patch-3422-qand-4137-1.patch

This patch removes the thread local code and uses StringBuilder instead of StringBuffer.

The core ganglia pieces are unchanged.

At this point an outstanding issue is that it is not possible to distinguish the metrics from
different jvms.

> Ganglia counter metrics are all reported with the metric name "value", so the counter
values can not be seen
> ------------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-3422
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3422
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: metrics
>    Affects Versions: 0.18.1
>            Reporter: Jason
>         Attachments: diff-20080520-1025.txt, ganglia-patch-3422-and-4137.patch, ganglia-patch-3422-and-4137.patch,
ganglia-patch-3422-qand-4137-1.patch
>
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> The JobInProgress class reports all metrics with the name "value". The FileMetrics class
puts all of the tags into the name when reporting the individual values, but the Ganglia Context
does not put the tags into the name..
> This patch modifies the context to build names for the counter metrics out of the tag
values. This enables the user to see the indivdual counter values with the ganglia web tool,
on a per job basis

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