Github user aarondav commented on the pull request:
https://github.com/apache/spark/pull/1331#issuecomment-48514775
Just to be sure, this will only change the exported SPARK_HOME variable,
which may be used to actually start executors or some such. However, we will
keep using `$FWDIR` for running other commands within the script. I wonder if
we should use SPARK_HOME instead of FWDIR (i.e., move the usage of FWDIR inside
of this if statement) when available.
@pwendell I know you've looked at this problem before (of having multiple
spark directories that we multiplex between), could you take a look at this?
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