Out of memory in PlayFramework 2.0
How do I increase the memory available to the Play environment? I am running out of memory after a time while running tests.
In particular, I get this error:
java.lang.OutOfMemoryError: PermGen space
I solved this problem by adding:
javaOptions ++= Seq("-Xmx2048M", "-Xms512M", "-XX:MaxPermSize=2048M")
in Build.scala to the settings.
By setting the environment variable "_JAVA_OPTIONS", you can pass in variables that play/sbt will use during normal use. I found that this helped me avoid PermGen space errors when running my dev and tests.
For example:
export _JAVA_OPTIONS="-Xms64m -Xmx1024m -Xss2m -XX:MaxPermSize=256m"
The Java startup options for play are founder in the script:
$PLAY_HOME/framework/build
The PermGen space can be increased by modifying the line at the bottom of the file:
java ${DEBUG_PARAM} -Xms512M -Xmx1536M -Xss1M -XX:+CMSClassUnloadingEnabled -XX:MaxPermSize=384M ...
Set the MaxPermSize variable to an appropriate value.
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