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https://issues.apache.org/jira/browse/IMPALA-6519?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong resolved IMPALA-6519.
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Resolution: Fixed
Fix Version/s: Impala 2.12.0
Impala 3.0
> Allow atomic allocation of an unreserved buffer
> -----------------------------------------------
>
> Key: IMPALA-6519
> URL: https://issues.apache.org/jira/browse/IMPALA-6519
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Reporter: Tim Armstrong
> Assignee: Tim Armstrong
> Priority: Major
> Labels: resource-management
> Fix For: Impala 3.0, Impala 2.12.0
>
>
> [~kwho] needs this for his KRPC work. We want the exchange node to allocate
> buffer pool buffers to store incoming data. However, the current interface
> doesn't easily allow multiple threads to allocate buffers for which they
> don't have reservations. Generally allocating buffers without having a
> reservation would be an anti-pattern but it is a useful transitional
> mechanism until we can reserve memory for the exchange node.
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