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https://issues.apache.org/jira/browse/HADOOP-1841?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12548019
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Mukund Madhugiri commented on HADOOP-1841:
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I ran sort benchmark on 500 nodes and here is the data:
trunk:
* sort: 1.776 hr
* random writer: 0.459 hr
* sort validation: 0.341 hr
trunk + patch:
* sort: 1.776 hr
* random writer: 0.423 hr
* sort validation: 0.450 hr
> IPC server should write repsonses asynchronously
> ------------------------------------------------
>
> Key: HADOOP-1841
> URL: https://issues.apache.org/jira/browse/HADOOP-1841
> Project: Hadoop
> Issue Type: Improvement
> Components: ipc
> Reporter: Doug Cutting
> Assignee: dhruba borthakur
> Attachments: asyncRPC-2.patch, asyncRPC-4.patch, asyncRPC.patch,
> asyncRPC.patch
>
>
> Hadoop's IPC Server currently writes responses from request handler threads
> using blocking writes. Performance and scalability might be improved if
> responses were written asynchronously.
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