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From "Robert Metzger (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-4830) Show latency statistics in web interface
Date Fri, 14 Oct 2016 12:43:20 GMT
Robert Metzger created FLINK-4830:

             Summary: Show latency statistics in web interface
                 Key: FLINK-4830
                 URL: https://issues.apache.org/jira/browse/FLINK-4830
             Project: Flink
          Issue Type: Sub-task
          Components: Metrics
            Reporter: Robert Metzger
            Assignee: Robert Metzger

With FLINK-3660, we added a metric that measures the latency of records flowing through the

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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