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https://issues.apache.org/jira/browse/PIG-2619?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13239874#comment-13239874
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Andy Lindeman commented on PIG-2619:
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But yah, under circumstances like random access, it's useful.
> 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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