Sriranjan Manjunath commented on PIG-1102:

Hadoop currently does not provide us average CPU usage  / mem usage per job. It 
even does not provide the number of spills per job. I have created a jira 
requesting the same: https://issues.apache.org/jira/browse/MAPREDUCE-1257

The only information we can currently gather is the number of spill records.

> Collect number of spills per job
> --------------------------------
>                 Key: PIG-1102
>                 URL: https://issues.apache.org/jira/browse/PIG-1102
>             Project: Pig
>          Issue Type: Improvement
>            Reporter: Olga Natkovich
>            Assignee: Sriranjan Manjunath
>             Fix For: 0.7.0
> Memory shortage is one of the main performance issues in Pig. Knowing when we 
> spill do the disk is useful for understanding query performance and also to 
> see how certain changes in Pig effect that.
> Other interesting stats to collect would be average CPU usage and max mem 
> usage but I am not sure if this information is easily retrievable.
> Using Hadoop counters for this would make sense.

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