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https://issues.apache.org/jira/browse/MAHOUT-1636?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14257748#comment-14257748
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Dmitriy Lyubimov edited comment on MAHOUT-1636 at 12/24/14 12:58 AM:
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yes, non-engine specific _math_.
Math is operative word here. Like quasi-newton optimizers for example. Or
matrices. Not drivers. or command line parsers.
but anyhow. if you want to add new dependencies to front end, the way to do it
is to add it to /lib. and to do that, it'd need a new assembly pom. Which
probably should go over dependencies of module where your cli routines are. (I
assume it's spark, right?)
was (Author: dlyubimov):
yes, non-engine specific _math_.
Math is operative word here. Like quasi-newton optimizers for example. Or
matrices. Not drivers. or command line parsers.
> Class dependencies for the spark module are put in a job.jar, which is very
> inefficient
> ---------------------------------------------------------------------------------------
>
> Key: MAHOUT-1636
> URL: https://issues.apache.org/jira/browse/MAHOUT-1636
> Project: Mahout
> Issue Type: Bug
> Components: spark
> Affects Versions: 1.0-snapshot
> Reporter: Pat Ferrel
> Fix For: 1.0-snapshot
>
>
> using a maven plugin and an assembly job.xml a job.jar is created with all
> dependencies including transitive ones. This job.jar is in
> mahout/spark/target and is included in the classpath when a Spark job is run.
> This allows dependency classes to be found at runtime but the job.jar include
> a great deal of things not needed that are duplicates of classes found in the
> main mrlegacy job.jar. If the job.jar is removed, drivers will not find
> needed classes. A better way needs to be implemented for including class
> dependencies.
> I'm not sure what that better way is so am leaving the assembly alone for
> now. Whoever picks up this Jira will have to remove it after deciding on a
> better method.
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