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https://issues.apache.org/jira/browse/GIRAPH-23?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13094969#comment-13094969
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Avery Ching commented on GIRAPH-23:
-----------------------------------

That is weird, haven't seen this issue on 0.20.203 and 0.20.204, nor on the 
0.20.1 release we have at Yahoo!.

> Giraph causes capacity scheduler to report crazy statistics
> -----------------------------------------------------------
>
>                 Key: GIRAPH-23
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-23
>             Project: Giraph
>          Issue Type: Bug
>         Environment: Hadoop 20.2, non-secure with capacity scheduler
>            Reporter: Jakob Homan
>
> Not sure why, but all our Giraph jobs create crazy values for the scheduler 
> in terms of number of mappers:
> {noformat}51 running map tasks using -52224 map slots, 0 running reduce tasks 
> using 0 reduce slots. {noformat}
> and this trickles out to the whole cluster:
> {noformat}Used capacity: -58229 (-12468.7% of Capacity){noformat}
> These numbers don't appear to affect the job and the correct themselves a 
> short time after the Giraph job finishes running.

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