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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 00:30:07 GMT

    [ https://issues.apache.org/jira/browse/PIG-856?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12721581#action_12721581
] 

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

+1. I will file a separate Jira (if replication of 1 is decided upon) so that Pig retries
a map-reduce stage if it fails for *external* reasons.

> 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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