[jira] Commented: (HADOOP-3200) Job history counters should be avaible on the UI.

["Amar Kamat (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-3200?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12630975#action_12630975 ] 

Amar Kamat commented on HADOOP-3200:
------------------------------------

Few comments
1) I think you could use the default job history parser and retrieve counters inline instead of writing a new listener which will rescan the whole history file.
2) There is a piece of code in {{TestCounters}} that does counter comparison. You can reuse that to check counter's content equality.
3) {{JobTracker.getJobCounters()}} can be used to get the job level counters instead of getting the counters from the task reports and adding/merging them.

> Job history counters should be avaible on the UI.
> -------------------------------------------------
>
>                 Key: HADOOP-3200
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3200
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: mapred
>    Affects Versions: 0.16.0
>            Reporter: Amareshwari Sriramadasu
>            Assignee: Vinod K V
>         Attachments: HADOOP-3200-20080915.1.txt
>
>
> Job history is logging counters. But they are not visible on the UI. 
> Job history parser and UI should be modified to view counters.

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