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From "Robert Metzger (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-2944) Collect, expose and display operator-specific stats
Date Fri, 15 Apr 2016 12:25:25 GMT

     [ https://issues.apache.org/jira/browse/FLINK-2944?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Metzger updated FLINK-2944:
----------------------------------
    Issue Type: Sub-task  (was: New Feature)
        Parent: FLINK-3766

> Collect, expose and display operator-specific stats
> ---------------------------------------------------
>
>                 Key: FLINK-2944
>                 URL: https://issues.apache.org/jira/browse/FLINK-2944
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Local Runtime, Webfrontend
>            Reporter: Fabian Hueske
>              Labels: requires-design-doc
>
> It would be nice to collect operator-specific stats such as:
> - HashJoin: bytes spilled build side, bytes spilled probe side, num keys (build / probe)
> - GroupBy: bytes spilled, num keys, max group size, avg. group size
> - Combiner: combine rate (in/out ratio)
> - Streaming Ops: avg. throughput
> - etc.
> and display these stats in the webUI. 



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