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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.patch2
Cleaned up the demo slightly. Got rid of all the old accrights style fd
passing, improved unit tests for passing two file descriptors, added lots of
comments in domain socket code. Also got rid of old test binaries and a vim
.swp file that got dragged into previous patch.
Unit tests are built using a little bash script to reduce number of variables
in play until this is working. Running libhdfspp/lib/localreader/test/test.sh
will generate a client and server. The server will open and pass two FDs to
the client, the client will read the contents of both.
> 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.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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