[jira] [Updated] (MAPREDUCE-3487) jobhistory web ui task counters no longer links to singletakecounter page

["Jason Lowe (Updated) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3487?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jason Lowe updated MAPREDUCE-3487:
----------------------------------

    Attachment: mapreduce-3487.patch

Patch to restore links to the single task counter page.  Also fixed a bug found during testing where task attempts that were killed before generating any counters (e.g.: speculative execution) could cause an NPE when the task counter page was rendered.
                
> jobhistory web ui task counters no longer links to singletakecounter page
> -------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3487
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3487
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.0
>            Reporter: Thomas Graves
>            Priority: Critical
>         Attachments: mapreduce-3487.patch
>
>
> The task counters on the job history task counter web ui page ( ie host:19888/jobhistory/taskcounters/task_1322451030861_9_9_m_0) are no longer links. They are supposed to be links that take you to the singletaskcounter page and show you the task attempts that affected the counter.
> Looks like MAPREDUCE-3258  changed CounterBlock.java so it doesn't show the link on the counter:
>  if (mg == null && rg == null) {
>            groupRow.td().$title(counter.getName())._(counter.getDisplayName()).
>             _();
>           } else {

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