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From "Dmitriy V. Ryaboy (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PIG-2923) Lazily register bags with SpillableMemoryManager
Date Sat, 22 Sep 2012 18:08:07 GMT

     [ https://issues.apache.org/jira/browse/PIG-2923?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Dmitriy V. Ryaboy updated PIG-2923:

    Attachment: bagspill_delay.patch
> 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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