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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] Commented: (PIG-1062) load-store-redesign branch: change SampleLoader and subclasses to work with new LoadFunc interface
Date Tue, 17 Nov 2009 00:25:39 GMT

    [ https://issues.apache.org/jira/browse/PIG-1062?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12778666#action_12778666
] 

Arun C Murthy commented on PIG-1062:
------------------------------------

bq. It looks like ReduceContext has a getCounter() method. Am I missing a subtlety?

The counters you get from a {Map|Reduce}Context are only specific to the specific task. One
would have to jump through a whole set of hoops i.e. create new JobClient or equivalent in
the new context object apis), query the JobTracker for rolled up counters and even then they
aren't guaranteed to be completely accurate (until job completion), thus I wouldn't recommend
that we rely upon them.

> load-store-redesign branch: change SampleLoader and subclasses to work with new LoadFunc
interface 
> ---------------------------------------------------------------------------------------------------
>
>                 Key: PIG-1062
>                 URL: https://issues.apache.org/jira/browse/PIG-1062
>             Project: Pig
>          Issue Type: Sub-task
>            Reporter: Thejas M Nair
>            Assignee: Thejas M Nair
>         Attachments: PIG-1062.patch, PIG-1062.patch.3
>
>
> This is part of the effort to implement new load store interfaces as laid out in http://wiki.apache.org/pig/LoadStoreRedesignProposal
.
> PigStorage and BinStorage are now working.
> SampleLoader and subclasses -RandomSampleLoader, PoissonSampleLoader need to be changed
to work with new LoadFunc interface.  
> Fixing SampleLoader and RandomSampleLoader will get order-by queries working.
> PoissonSampleLoader is used by skew join. 

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