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https://issues.apache.org/jira/browse/PIG-2923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13461230#comment-13461230
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Dmitriy V. Ryaboy commented on PIG-2923:
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New patch attached, please review.
> Lazily register bags with SpillableMemoryManager
> ------------------------------------------------
>
> Key: PIG-2923
> URL: https://issues.apache.org/jira/browse/PIG-2923
> Project: Pig
> Issue Type: Improvement
> Reporter: Dmitriy V. Ryaboy
> Assignee: Dmitriy V. Ryaboy
> Attachments: bagspill_delayed_register.patch, bagspill_delay.patch
>
>
> Currently, all Spillable DataBags get registered by the BagFactory at the
> moment of creation. In practice, a lot of these bags will not get large
> enough to be worth spilling; we can avoid a lot of memory overhead and
> cheapen the process of finding a bag to spill when we do need it, by allowing
> Bags themselves to register when they grow to some respectable threshold.
> Related JIRAs: PIG-2917, PIG-2918
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