Github user mxm commented on the pull request:
https://github.com/apache/flink/pull/859#issuecomment-119883278
Typically, programs can allocate as much memory as they like. We only take
a fraction of the free physical memory for the manged memory. We could also
take only half of the physical memory. Or, alternatively, fail with an
exception that the maximum memory for the JVM is not set (-Xmx is missing). In
my opinion, it is ok to take a fraction of the physical memory for local
execution.
---
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.
---
