[jira] [Resolved] (SPARK-5630) Open a little bit metrics API

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

     [ https://issues.apache.org/jira/browse/SPARK-5630?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen resolved SPARK-5630.
------------------------------
    Resolution: Won't Fix

> Open a little bit metrics API
> -----------------------------
>
>                 Key: SPARK-5630
>                 URL: https://issues.apache.org/jira/browse/SPARK-5630
>             Project: Spark
>          Issue Type: Wish
>          Components: Input/Output, Spark Core
>            Reporter: Jacek Lewandowski
>
> For the input and output metrics in {{TaskMetrics}} there very few data types available (memory, disk, hadoop and network for reading and only hadoop for writing). They are defined as enums and they are used mostly to present the value in the UI. As there are many custom inputs and outputs wouldn't it be useful to open these sets so that the method is defined as just a {{String}}?
> The other useful thing would be to make the {{Source}} interface public, so that it can be implemented by custom components which then could get registered in the Spark metrics system. 
> Is it reasonable enough to start work on this?



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