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From "Micah Whitacre (JIRA)" <>
Subject [jira] [Updated] (CRUNCH-569) Don't reuse avros on SparkPipeline cache()
Date Fri, 16 Oct 2015 16:01:05 GMT


Micah Whitacre updated CRUNCH-569:
    Attachment: CRUNCH-569.patch

Ok took a quick pass a handling the deep copy when persisting.  It makes the original test
pass which is good but I don't think the work is necessarily complete as I'm guessing similar
changes for the other impls in org.apache.crunch.impl.spark.collect are still needed.

[~joshwills] does this seem to align with what you were thinking enough to try and carry forward
or is there a better way?

> Don't reuse avros on SparkPipeline cache()
> ------------------------------------------
>                 Key: CRUNCH-569
>                 URL:
>             Project: Crunch
>          Issue Type: Bug
>          Components: Spark
>    Affects Versions: 0.12.0
>            Reporter: Nithin Asokan
>         Attachments: CRUNCH-569.patch, CRUNCH-569_test.patch
> A cached PCollection/PTable built by Avros using SparkPipeline seem to reuse avro objects.
Here is a test that shows this behavior
> I would expect the output of this program to create a pair with same key, value. However,
this produces Pair with different key value. I have tested this with text file input source
and it works as expected. Removing cache() produces expected result. 
> Mailing list:

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