Github user felixcheung commented on the issue: https://github.com/apache/spark/pull/18465 thinking more about this, how would it handle the case when the forked process is in a bad state? say, if we put `stop()` in the gapply UDF. Or something more serious say some sort of native error (Rcpp?). Would that state be reflected there in the returned terminated process id list? Can `pskill` still be effective in those cases?
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