Github user shivaram commented on the issue:
https://github.com/apache/spark/pull/12836
The out of memory error seems to be coming from trying to form a
`.toString` of the query plan. Is there something in the query plan for R UDFs
that might create a very large string ?
Also one more source of difference is that Jenkins could be running with
info log level while local R execution might run with warning log level.
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