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From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-4650) Provide an ability to show task counters for a given task type in Web UI
Date Tue, 11 Sep 2012 09:59:07 GMT
Hemanth Yamijala created MAPREDUCE-4650:
-------------------------------------------

             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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