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From "Daniel Dai (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PIG-2208) Restrict number of PIG generated Haddop counters
Date Mon, 26 Sep 2011 21:06:15 GMT

    [ https://issues.apache.org/jira/browse/PIG-2208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13114925#comment-13114925
] 

Daniel Dai commented on PIG-2208:
---------------------------------

It seems no matter what else we want to do, option 2 is a good addition. I am going to commit
the patch, objection?
                
> Restrict number of PIG generated Haddop counters 
> -------------------------------------------------
>
>                 Key: PIG-2208
>                 URL: https://issues.apache.org/jira/browse/PIG-2208
>             Project: Pig
>          Issue Type: Bug
>          Components: impl
>    Affects Versions: 0.8.1, 0.9.0
>            Reporter: Richard Ding
>            Assignee: Richard Ding
>             Fix For: 0.9.1
>
>         Attachments: PIG-2208.patch
>
>
> PIG 8.0 implemented Hadoop counters to track the number of records read for each input
and the number of records written for each output (PIG-1389 & PIG-1299). On the other
hand, Hadoop has imposed limit on per job counters (MAPREDUCE-1943) and jobs will fail if
the counters exceed the limit.
> Therefore we need a way to cap the number of PIG generated counters.
> Here are the two options:
> 1. Add a integer property (e.g., pig.counter.limit) to the pig property file (e.g., 20).
If the number of inputs of a job exceeds this number, the input counters are disabled. Similarly,
if the number of outputs of a job exceeds this number, the output counters are disabled.
> 2. Add a boolean property (e.g., pig.disable.counters) to the pig property file (default:
false). If this property is set to true, then the PIG generated counters are disabled.
>   

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