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Posted to dev@pig.apache.org by "Jonathan Coveney (Commented) (JIRA)" <ji...@apache.org> on 2012/03/27 20:29:27 UTC

[jira] [Commented] (PIG-2619) HBaseStorage constructs a Scan with cacheBlocks = false

    [ https://issues.apache.org/jira/browse/PIG-2619?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13239792#comment-13239792 ] 

Jonathan Coveney commented on PIG-2619:
---------------------------------------

Good catch, Andy! I assume that the feature is used in normal HBase operations, just counterproductive in MR jobs?
                
> HBaseStorage constructs a Scan with cacheBlocks = false
> -------------------------------------------------------
>
>                 Key: PIG-2619
>                 URL: https://issues.apache.org/jira/browse/PIG-2619
>             Project: Pig
>          Issue Type: Improvement
>            Reporter: Andy Lindeman
>              Labels: hbase
>         Attachments: PIG-2619.patch
>
>
> Per <http://hbase.apache.org/book/mapreduce.example.html>, Scan objects for map-reduce jobs should disable cache blocks.
>     scan.setCacheBlocks(false);  // don't set to true for MR jobs
> This issue and the attached patch does so for Pig's HBaseStorage.

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