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https://issues.apache.org/jira/browse/HADOOP-2780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12566936#action_12566936
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dhruba borthakur commented on HADOOP-2780:
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This is a "performance improvement" fix rather than a bug fix. I do not expect
to have a unit test for this one (unless anybody in QA thinks otherwise).
> Socket receive buffer size on datanode too large
> ------------------------------------------------
>
> Key: HADOOP-2780
> URL: https://issues.apache.org/jira/browse/HADOOP-2780
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Reporter: dhruba borthakur
> Assignee: dhruba borthakur
> Fix For: 0.16.1
>
> Attachments: socketBufferSize.patch
>
>
> HADOOP-1707 introduced code that created the socket receive buffer size to be
> 1MB by default. This should be changed back to 128K.
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