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Posted to commits@samza.apache.org by "Yan Fang (JIRA)" <ji...@apache.org> on 2014/09/02 20:22:22 UTC

[jira] [Created] (SAMZA-401) Add utilization metrics for the event loop

Yan Fang created SAMZA-401:
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             Summary: Add utilization metrics for the event loop
                 Key: SAMZA-401
                 URL: https://issues.apache.org/jira/browse/SAMZA-401
             Project: Samza
          Issue Type: Improvement
            Reporter: Yan Fang


As discussed [here|https://issues.apache.org/jira/browse/SAMZA-349?focusedCommentId=14116417&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14116417],
{quote}
it would be useful to add "utilization" (aka "duty cycle") as a metric, which is the sum of all the timings divided by the window length. That can tell you how much idle time there is in the event loop (how much headroom before the job will start falling behind).
{quote}

It is useful to add this metric for the event loop.



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