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From "Greg Hogan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-3160) Aggregate operator statistics by TaskManager
Date Fri, 11 Dec 2015 16:50:10 GMT
Greg Hogan created FLINK-3160:

             Summary: Aggregate operator statistics by TaskManager
                 Key: FLINK-3160
                 URL: https://issues.apache.org/jira/browse/FLINK-3160
             Project: Flink
          Issue Type: Improvement
          Components: Webfrontend
    Affects Versions: 1.0.0
            Reporter: Greg Hogan

The web client job info page presents a table of the following per task statistics: start
time, end time, duration, bytes received, records received, bytes sent, records sent, attempt,
host, status.

Flink supports clusters with thousands of slots and a job setting a high parallelism renders
this job info page unwieldy and difficult to analyze in real-time.

It would be helpful to optionally or automatically aggregate statistics by TaskManager. These
rows could then be expanded to reveal the current per task statistics.

Start time, end time, duration, and attempt are not applicable to a TaskManager since new
tasks for repeated attempts may be started. Bytes received, records received, bytes sent,
and records sent are summed. Any throughput metrics can be averaged over the total task time
or time window. Status could reference the number of running tasks on the TaskManager or an
idle state.

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