Jacek Lewandowski created SPARK-5745:
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Summary: Allow to use custom TaskMetrics implementation
Key: SPARK-5745
URL: https://issues.apache.org/jira/browse/SPARK-5745
Project: Spark
Issue Type: Wish
Components: Spark Core
Reporter: Jacek Lewandowski
There can be various RDDs implemented and the `TaskMetrics` provides a great
API for collecting metrics and aggregating them. However some RDDs may want to
register some custom metrics and the current implementation doesn't allow for
this (for example the number of read rows or whatever).
I suppose that this can be changed without modifying the whole interface -
there could used some factory to create the initial `TaskMetrics` object. The
default factory could be overridden by user.
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