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https://issues.apache.org/jira/browse/HDFS-2246?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13150136#comment-13150136
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Jitendra Nath Pandey commented on HDFS-2246:
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> with these benchmarks, the optimization seems to be about 3x vs trunk, which
> is pretty nice.
That's awesome! How many threads you ran? Did you turn off the checksum?
> Shortcut a local client reads to a Datanodes files directly
> -----------------------------------------------------------
>
> Key: HDFS-2246
> URL: https://issues.apache.org/jira/browse/HDFS-2246
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Sanjay Radia
> Attachments: 0001-HDFS-347.-Local-reads.patch,
> HDFS-2246-branch-0.20-security-205.1.patch,
> HDFS-2246-branch-0.20-security-205.2.patch,
> HDFS-2246-branch-0.20-security-205.patch,
> HDFS-2246-branch-0.20-security-205.patch,
> HDFS-2246-branch-0.20-security-205.patch,
> HDFS-2246-branch-0.20-security.3.patch,
> HDFS-2246-branch-0.20-security.no-softref.patch,
> HDFS-2246-branch-0.20-security.patch, HDFS-2246-branch-0.20-security.patch,
> HDFS-2246-trunk.patch, HDFS-2246-trunk.patch, HDFS-2246.20s.1.patch,
> HDFS-2246.20s.2.txt, HDFS-2246.20s.3.txt, HDFS-2246.20s.4.txt,
> HDFS-2246.20s.patch, TestShortCircuitLocalRead.java,
> localReadShortcut20-security.2patch
>
>
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