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From "David Bowen (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-132) An API for reporting performance metrics
Date Thu, 13 Apr 2006 20:13:00 GMT
An API for reporting performance metrics
----------------------------------------

         Key: HADOOP-132
         URL: http://issues.apache.org/jira/browse/HADOOP-132
     Project: Hadoop
        Type: New Feature

    Reporter: David Bowen



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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