[ http://issues.apache.org/jira/browse/HADOOP-132?page=all ]
David Bowen updated HADOOP-132:
-------------------------------
Attachment: (was: metrics.patch)
> An API for reporting performance metrics
> ----------------------------------------
>
> Key: HADOOP-132
> URL: http://issues.apache.org/jira/browse/HADOOP-132
> Project: Hadoop
> Type: New Feature
> Versions: 0.2
> Reporter: David Bowen
> Fix For: 0.2
> Attachments: javadoc.tgz, javadoc.tgz, metrics.patch
>
> I'd like to propose adding an API for reporting performance metrics. I will
> post some javadoc as soon as I figure out how to do so. The idea is for the
> API to be sufficiently abstract that various different implementations can be
> plugged in. In particular, there would be one that just writes the metric
> data to a file, and another that sends metrics to Ganglia. It would also be
> possible to plug in an implementation that can support high-frequency (say,
> per-second) sending of fairly large amounts of data (up to hundreds of
> metrics) across the network.
> I'd be very interested in people's thoughts about what the requirements
> should be for such an API.
> - David Bowen
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