[jira] [Resolved] (SPARK-5745) Allow to use custom TaskMetrics implementation

["Sean Owen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-5745?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen resolved SPARK-5745.
------------------------------
    Resolution: Won't Fix

> 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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