[jira] [Updated] (FLINK-4830) Show latency statistics in web interface

["Till Rohrmann (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-4830?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Till Rohrmann updated FLINK-4830:
---------------------------------
    Issue Type: New Feature  (was: Sub-task)
        Parent:     (was: FLINK-456)

> Show latency statistics in web interface
> ----------------------------------------
>
>                 Key: FLINK-4830
>                 URL: https://issues.apache.org/jira/browse/FLINK-4830
>             Project: Flink
>          Issue Type: New Feature
>          Components: Metrics, Webfrontend
>            Reporter: Robert Metzger
>            Priority: Major
>
> With FLINK-3660, we added a metric that measures the latency of records flowing through the system.
> With this JIRA, I would like to expose the latency also in the web frontend.
> Therefore, we'll probably need to change the format the latency is reported in the metric.
> I think we should show the latencies in two different views in the interface:
> - A global end-to-end latency in the overview of running jobs. This number is probably pretty inaccurate, but should give users a first impression of the latency characteristics currently present in the job
> - A detailed latency drill-down view, that allows to see how much latency is added on average at each operator, for the sources.



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