GitHub user superbobry opened a pull request:
https://github.com/apache/spark/pull/17230
[SPARK-19353][CORE] Generalize PipedRDD to use I/O formats
## What changes were proposed in this pull request?
This patch allows to use arbitrary input and output formats when
streaming data to and from the piped process. The API uses
java.io.Data{Input,Output} for I/O, therefore all methods operating
on multibyte primitives assume big-endian byte order.
The change is fully backward-compatible in terms of both public API
and behaviour. Additionally, existing line-based format is available
via TextInputWriter/TextOutputReader.
## How was this patch tested?
PipedRDD unit tests and in-house integration tests.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/criteo-forks/spark pipe-binary-io-upstream
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/17230.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #17230
----
commit 1265fda3c7399a635b985565b0d915d901d48382
Author: Sergei Lebedev <[email protected]>
Date: 2017-01-26T17:30:25Z
[SPARK-19353][CORE] Generalize PipedRDD to use I/O formats
This commit allows to use arbitrary input and output formats when
streaming data to and from the piped process. The API uses
java.io.Data{Input,Output} for I/O, therefore all method operating
on multibyte primitives assume big-endian byte order.
The change is fully backward-compatible in terms of both public API
and behaviour. Additionally, existing line-based format is available
via TextInputWriter/TextOutputReader.
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