increase the java heap size permanently?
Apparently, _JAVA_OPTIONS works on Linux, too:
$ export _JAVA_OPTIONS="-Xmx1g"$ java -jar jconsole.jar &Picked up _JAVA_OPTIONS: -Xmx1g
For Windows users, you can add a system environment variable named _JAVA_OPTIONS, and set the heap size values there. The JVM should be able to grab the virtual machine options from _JAVA_OPTIONS.
This worked for me:
export _JAVA_OPTIONS="-Xmx1g"It's important that you have no spaces because for me it did not work. I would suggest just copying and pasting. Then I ran:
java -XshowSettings:vm and it will tell you:
Picked up _JAVA_OPTIONS: -Xmx1g