Thomas Graves created SPARK-12384:
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Summary: Allow -Xms to be set differently then -Xmx
Key: SPARK-12384
URL: https://issues.apache.org/jira/browse/SPARK-12384
Project: Spark
Issue Type: Improvement
Components: Spark Submit, YARN
Affects Versions: 1.6.0
Reporter: Thomas Graves
Currently Spark automatically sets the -Xms parameter to be the same as the
-Xmx parameter. We should allow the user to set this separately.
The main use case here is if I'm running the spark-shell on a shared gateway.
Many users specify a larger memory size then needed and will never use that
much memory, so all its doing is preventing other users from potentially using
that memory. Allowing it to be less is just more multi-tenant friendly.
I think it makes sense to leave this for cluster mode, although if a user
really wants to override I don't see why we shouldn't let them.
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