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https://issues.apache.org/jira/browse/CASSANDRA-8367?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14803168#comment-14803168
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Jim Witschey commented on CASSANDRA-8367:
-----------------------------------------
[~zvo] I'm closing this for now -- if this hasn't been resolved to your
satisfaction, could you follow the contribution instructions Philip linked to
and reopen? Thanks.
> Clash between Cassandra and Crunch mapreduce config
> ---------------------------------------------------
>
> Key: CASSANDRA-8367
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8367
> Project: Cassandra
> Issue Type: Bug
> Components: Hadoop
> Reporter: Radovan Zvoncek
> Priority: Minor
>
> We would like to use Cassandra's (Cql)BulkOutputFormats to implement Resource
> IOs for Crunch. We want to do this to allow Crunch users write results of
> their jobs directly to Cassandra (thus skipping writing them to file system).
> In the process of doing this, we found out there is a clash in the mapreduce
> job config. The affected config key is 'mapreduce.output.basename'. Cassandra
> is using it [1] for something different than Crunch [2]. This is resulting in
> some obscure behavior I personally don't understand, but it causes the jobs
> to fail.
> We went ahead and re-implemented the output format classes to use different
> config key, but we'd very much like to stop using them.
> [1]
> https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/hadoop/ConfigHelper.java#L54
> [2]
> https://github.com/apache/crunch/blob/3f13ee65c9debcf6bd7366607f58beae6c73ffe2/crunch-core/src/main/java/org/apache/crunch/io/CrunchOutputs.java#L99
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