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From "Zhijie Shen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-1166) YARN 'appsFailed' metric should be of type 'counter'
Date Fri, 03 Jan 2014 07:33:53 GMT

     [ https://issues.apache.org/jira/browse/YARN-1166?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zhijie Shen updated YARN-1166:
------------------------------

    Attachment: YARN-1166.6.patch

Given YARN-1493 separates app and app-attempt events, I created a new patch which not only
change 'appsFailed' from MutableGaugeInt to MutableCounterInt, but also bind the change of
the counter with the correct event:

1. SubmitApp: increment appsSubmitted
2. SubmitAppAttempt: increment appsPending
3. RunAppAttempt: decrement appsPending, increment appsRunning
4. FinishAppAttempt: decrement appsRunning
5. FinishApp: increment appsCompleted/appsKilled/appsFailed

1,2 and 5 are binded to the app related events, and are always increasing, while 3 and 4 are
binded to the app-attempt related events, and can increase and decrease.

> YARN 'appsFailed' metric should be of type 'counter'
> ----------------------------------------------------
>
>                 Key: YARN-1166
>                 URL: https://issues.apache.org/jira/browse/YARN-1166
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.1.0-beta
>            Reporter: Srimanth Gunturi
>            Assignee: Zhijie Shen
>            Priority: Blocker
>         Attachments: YARN-1166.2.patch, YARN-1166.3.patch, YARN-1166.4.patch, YARN-1166.5.patch,
YARN-1166.6.patch, YARN-1166.patch
>
>
> Currently in YARN's queue metrics, the cumulative metric 'appsFailed' is of type 'guage'
- which means the exact value will be reported. 
> All other cumulative queue metrics (AppsSubmitted, AppsCompleted, AppsKilled) are all
of type 'counter' - meaning Ganglia will use slope to provide deltas between time-points.
> To be consistent, AppsFailed metric should also be of type 'counter'. 



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