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Posted to mapreduce-issues@hadoop.apache.org by "Hemanth Yamijala (JIRA)" <ji...@apache.org> on 2012/09/11 12:07:07 UTC
[jira] [Commented] (MAPREDUCE-4650) Provide an ability to show task
counters for a given task type in Web UI
[ https://issues.apache.org/jira/browse/MAPREDUCE-4650?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13452867#comment-13452867 ]
Hemanth Yamijala commented on MAPREDUCE-4650:
---------------------------------------------
I am thinking on the lines of hyperlinking the counter values in the map or reduce columns of the job counters page. Selecting any of these queries for singlejobcounter with an additional tasktype parameter in the URL and the rest of the filtering can happen in the view / model.
With this change, the URL for the singlejobcounter looks like this:
singlejobcounter/$JOBID/$COUNTERGROUP/$COUNTER/$TASKTYPE.
If no TaskType is passed, it behaves as today. Otherwise the filter is applied.
> 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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