Github user willb commented on the pull request:
https://github.com/apache/spark/pull/2401#issuecomment-55902476
Here's a somewhat-related concern: it seems like JVM overhead is unlikely
to scale linearly with requested heap size, so maybe a straight-up 15% isn't a
great default? (If you have hard data on how heap requirements grow with job
size, I'd be interested in seeing it.) Perhaps it would make more sense to
reserve whichever is smaller of 15% or some fixed but reasonable amount.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
