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https://issues.apache.org/jira/browse/PIG-1307?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12847587#action_12847587
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Daniel Dai commented on PIG-1307:
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Hi, Ben,
Is the patch ready? Do you need help to add some test cases?
> when we spill the DefaultDataBag we are not setting the sized changed flag to
> be true.
> --------------------------------------------------------------------------------------
>
> Key: PIG-1307
> URL: https://issues.apache.org/jira/browse/PIG-1307
> Project: Pig
> Issue Type: Bug
> Reporter: Benjamin Reed
> Assignee: Benjamin Reed
> Fix For: 0.7.0
>
> Attachments: PIG-1307.patch
>
>
> pig uses a size changed flag to indicate when we should recalculate the
> memory footprint of the bag. the setting of this flag is sprinkled throughout
> the code. unfortunately, it is missing in DefaultDataBag.spill(). there may
> be other cases as well. the problem with this case is that when the low
> memory threshold kicks in, bags are spilled until the desired amount of
> memory is "freed". since the flag is not being reset subsequent calls to the
> threshold events will retrigger the spill() and think more memory was freed
> even though nothing was actually spilled.
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