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https://issues.apache.org/jira/browse/HADOOP-13426?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15456644#comment-15456644
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Kihwal Lee commented on HADOOP-13426:
-------------------------------------
Pushed to 2.8.
> More efficiently build IPC responses
> ------------------------------------
>
> Key: HADOOP-13426
> URL: https://issues.apache.org/jira/browse/HADOOP-13426
> Project: Hadoop Common
> Issue Type: Sub-task
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Fix For: 2.8.0, 3.0.0-alpha1
>
> Attachments: HADOOP-13426.1.patch, HADOOP-13426.patch
>
>
> The call response buffer is allowed to dynamically grow until a max size is
> reached. Often times the full size of the response can be known in advance
> which avoids copies. This is very advantageous for large responses.
> Automatic framing of the response buffer will also prevent unnecessary
> allocations and copies when the size is/isn't known.
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