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https://issues.apache.org/jira/browse/PIG-96?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Olga Natkovich resolved PIG-96.
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Resolution: Fixed
Based on the discussion I don't see a reason to spill to DFS
> It should be possible to spill big databags to HDFS
> ---------------------------------------------------
>
> Key: PIG-96
> URL: https://issues.apache.org/jira/browse/PIG-96
> Project: Pig
> Issue Type: Improvement
> Components: data
> Reporter: Pi Song
>
> Currently databags only get spilled to local disk which costs 2 disk io
> operations.If databags are too big, this is not efficient.
> We should take advantage of HDFS so if the databag is too big (determined by
> DataBag.getMemorySize() > a big threshold), let's spill it to HDFS. Also
> read from HDFS in parallel when data is required.
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