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https://issues.apache.org/jira/browse/HDFS-8765?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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James Clampffer updated HDFS-8765:
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Attachment: short-circuit-demo.patch4
Rebased to head again. I haven't really touched this since the last rebase;
though I should have some more time to spend on it in the next 2-3 weeks.
Todo:
-a lot of dead printf/cout style debugging code can be removed
-lots of easy whitespace/formatting fixes
-make sure the block TokenProto gets passed over the domain socket
-If passing the tokenproto doesn't help it looks like some kernel debugging is
going to be required to figure out what's dropping the ancillary data (fds)
> Implement local block reader in libhdfspp
> -----------------------------------------
>
> Key: HDFS-8765
> URL: https://issues.apache.org/jira/browse/HDFS-8765
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
> Reporter: James Clampffer
> Assignee: James Clampffer
> Attachments: short-circuit-demo.patch2, short-circuit-demo.patch3,
> short-circuit-demo.patch4, short_circuit_demo.patch
>
>
> Implement a block reader that uses the hdfs short circuit protocol to read
> colocated data as efficiently as possible. Implementation will be based on
> BlockReaderLocal.java + the associated JNI bindings.
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