[ http://issues.apache.org/jira/browse/HADOOP-237?page=all ]
Milind Bhandarkar updated HADOOP-237:
-------------------------------------
Attachment: hadoop-metrics.patch
Attached a patch that uses hadoop metrics API and a properties file that
defaults to null context but has examples of file and ganglia output contexts.
All metrics requested in the bug, except for output-bytes for reduce tasks have
been included. The output-bytes required a change to recordwriter interface,
and therefore has been postponed.
I have tested it with file and null context. Have not tested it with ganglia.
> Standard set of Performance Metrics for Hadoop
> ----------------------------------------------
>
> Key: HADOOP-237
> URL: http://issues.apache.org/jira/browse/HADOOP-237
> Project: Hadoop
> Type: Improvement
> Components: metrics
> Versions: 0.3.0
> Environment: All
> Reporter: Milind Bhandarkar
> Assignee: Milind Bhandarkar
> Attachments: hadoop-metrics.patch
>
> I am starting to use Hadoop's shiny new Metrics API to publish performance
> (and other) Metrics of running jobs and other daemons.
> Which performance metrics are people interested in seeing ? If possible,
> please group them according to modules, such as map-reduce, dfs,
> general-cluster-related etc. I will follow this process:
> 1. collect this list
> 2. assess feasibility of obtaining metric
> 3. assign context/record/metrics names
> 4. seek approval for names
> 5. instrument the code.
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