Setting JVM parameters in application.conf

[peng.j...@gmail.com]

Hi all,

We are trying to find out how to set JVM parameters with some configuration file, so our play apps can share the same configuration without typing it out. We find that in very early version of play, there is one parameter called jvm.memory to set up the heap size. So, can we still set such parameters in application.conf or somewhere else? Your answers will be highly appreciated!

Thanks,

Peng

[Greg Methvin]

I think jvm.memory was a play 1 option. I know little about the internals of Play 1.x, but IIRC it uses a python script to read options like that and then starts the JVM. In Play 2.x, the Play server itself reads the configuration, so unfortunately you can't use the application configuration to do it.

If you use a forked JVM in SBT, you can add your javaOptions in SBT. You can also configure JVM options for sbt-native-packager ("sbt dist") that define which options are passed to your native start script.

I hope that helps.

Greg

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Greg Methvin

Senior Software Engineer

Lightbend, Inc.

[peng.j...@gmail.com]

Thank you very much Greg! We will try your solution.

Best,

Peng