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https://issues.apache.org/jira/browse/PIG-2318?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julien Le Dem updated PIG-2318:
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Attachment: PIG-2318_2.patch
PIG-2318_2.patch addresses the comments. I'm now streaming jars from the URL to
HDFS instead of copyFromLocal, so that would work from any URL. I don't know
for the Vector for skipJars, but it seems that before my change it was a static
list, so Vector vs ArrayList does not seem necessary.
> Push extra jars to distributed cache and use the classloader enxtension
> mechanism in PigContext to load them on the backend
> ---------------------------------------------------------------------------------------------------------------------------
>
> Key: PIG-2318
> URL: https://issues.apache.org/jira/browse/PIG-2318
> Project: Pig
> Issue Type: Improvement
> Components: impl
> Reporter: Julien Le Dem
> Assignee: Julien Le Dem
> Attachments: PIG-2318.patch, PIG-2318_2.patch
>
>
> This is related to PIG-2010 with a slightly different approach
> https://issues.apache.org/jira/browse/PIG-2010
> Currently Pig bundles up all dependencies in a single jar which is a lot of
> overhead when there are a lot of dependencies and short lived jobs. This
> patch instead pushes the dependencies to distributed cache and uses the
> PigContext classloading mechanism to make the UDFs available.
> Possible improvements: push jars to HDFS/distributed cache only once per
> script. have a cache on HDFS to avoid repeatedly pushing jars to HDFS.
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