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From "Milind Bhandarkar (JIRA)" <j...@apache.org>
Subject [jira] Commented: (PIG-856) PERFORMANCE: reduce number of replicas
Date Fri, 19 Jun 2009 01:11:07 GMT

    [ https://issues.apache.org/jira/browse/PIG-856?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12721599#action_12721599
] 

Milind Bhandarkar commented on PIG-856:
---------------------------------------

+1 to Sathosh to documenting Knobs. Better to add and document knobs rather than modify language
like this:

{code}
%TempReplicate 2
store A into PigStorage('\t') with replication 2;
{code}

> PERFORMANCE: reduce number of replicas
> --------------------------------------
>
>                 Key: PIG-856
>                 URL: https://issues.apache.org/jira/browse/PIG-856
>             Project: Pig
>          Issue Type: Improvement
>    Affects Versions: 0.3.0
>            Reporter: Olga Natkovich
>
> Currently Pig uses the default number of replicas between MR jobs. Currently, the number
is 3. Given the temp nature of the data, we should never need more than 2 and should explicitely
set it to improve performance and to be nicer to the name node.

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