[jira] [Commented] (CRUNCH-557) Fix file distribution from HDFS in Crunch-on-Spark

["Micah Whitacre (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CRUNCH-557?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14728196#comment-14728196 ] 

Micah Whitacre commented on CRUNCH-557:
---------------------------------------

Sure, I'll try and write up some tests for this too.

> Fix file distribution from HDFS in Crunch-on-Spark
> --------------------------------------------------
>
>                 Key: CRUNCH-557
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-557
>             Project: Crunch
>          Issue Type: Bug
>            Reporter: Josh Wills
>         Attachments: CRUNCH-557.patch
>
>
> From the user list:
> I was trying to determine effect of changing JoinStrategy on a Spark pipeline. I noticed that my pipeline works fine with DefaultJoinStrategy, however I could not get it to working with MapSideJoinStrategy and BloomFilterJoinStrategy. For MapSideJoinStrategy I get an exceptions[1] on driver itself and for BloomFilterJoinStrategy I get exceptions[2] in one of the stages. I have not tried to do any configuration changes but I did run tests with datasets of different sizes to ensure that my PCollection is small enough to fit in memory. I am running spark in yarn-client mode with Crunch 0.11.0-cdh5.4.2.
> [1] https://gist.github.com/anonymous/15d6c691b743ad392d42
> [2] https://gist.github.com/anonymous/b02a82401a30a69f1cff
> The bug is in the SparkRuntime.distributeFiles method, which needs to include a scheme for the URI it's handing to Spark.



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