Github user dszeto commented on the issue:
https://github.com/apache/incubator-predictionio/pull/336
@marevol @pferrel Would have never expected about the plugins mechanism
being found without documentation. It's a debt that I should pay. :)
The original intention is for implementing event server and prediction
server plugins, so that you can put arbitrary filters in front by just dropping
in JARs.
Using `spark-submit --jars` is ideal. I was actually going to propose
moving away from submitting a PIO assembly and instead submit a `lib` folder of
JARs or even take advantage of Spark's dependency management (automatic
downloads of all other dependencies). If we agree going down this path, let's
follow @marevol 's suggestion and rename `plugins` to `lib` instead? What do
you think?
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