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Read and writable partitioned sources #969

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merged 3 commits into from Jul 28, 2014
Merged

Read and writable partitioned sources #969

merged 3 commits into from Jul 28, 2014

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stephanh
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This is an initial implementation of partitioned versions of the TypeDelimited and TextLine sources.

I'll add the tests next.

}
}

// Create the underlying scrooge-parquet scheme and explicitly set the sink fields to be only the
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looks like these comments are out of sync.

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Fixed.

@johnynek
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This looks great! Thanks for sharing this. Once we have tests and address some minor issues we will merge.

@stephanh
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I have added some tests for writing. I'm not sure how to set up tests for reading though. I don't really know how the JobTest works for reading. Does it actually create files on disk?

@johnynek
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I think you will want to use hadoop-platform test:

https://github.com/twitter/scalding/blob/develop/scalding-hadoop-test/src/test/scala/com/twitter/scalding/platform/PlatformTest.scala

This actually spins up a minicluster and behaves very closely to hadoop.

There are methods in HadoopPlatformJobTest to initialize the sources (and feel free to add one of two if you think it is needed).

By default, JobTest does mocking of the sources and sinks, so it is only testing job logic.

@johnynek
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Actually, your test looks great. Merging this.

Thanks a ton!

johnynek added a commit that referenced this pull request Jul 28, 2014
Read and writable partitioned sources
@johnynek johnynek merged commit c4e6b82 into twitter:develop Jul 28, 2014
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2 participants