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

[Shang Yuanchun (Jira)]

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 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.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)