[jira] [Created] (MAPREDUCE-4650) Provide an ability to show task counters for a given task type in Web UI

["Hemanth Yamijala (JIRA)" <ji...@apache.org>]

Hemanth Yamijala created MAPREDUCE-4650:
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             Summary: Provide an ability to show task counters for a given task type in Web UI
                 Key: MAPREDUCE-4650
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4650
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
          Components: webapps
            Reporter: Hemanth Yamijala
            Assignee: Hemanth Yamijala


In the Web UI for Hadoop (post YARN), there is a view that lists counter values per task for a given counter (singlejobcounter page). I found this very useful to get a consolidated view of a specific counter across all tasks, for e.g. in debugging slow tasks. We can navigate to this view by selecting the specific counter from the Job Counters page.

This JIRA is to allow for the singlejobcounter page to be prepopulated only with map task values or reduce task values (if one were interested in only a particular type of task).

I understand there is a 'search' option on the singlejobcounter page that can be used to accomplish the same purpose. However, seems a little more usable to provide a direct filter before getting on to the page.

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