What values do you recommend for JAVA_OPTS parameters –Xms and –Xms for LAS Armstrong 1.1.1 when 21 users are using the server at the same time?
We were running (site http://mynasadata.larc.nasa.gov/las.armstrong/servlets/dataset) yesterday with the following:
JAVA_OPTS="-Djava.awt.headless=true –Xmx2048M –Xms2048M"
(by the way, these numbers worked for 20 users for LAS 6.5 at this time last year on same system which has 12G of memory)
and managed to lock up the server to the point that we could not get the user interface to display.
A local sys admin recommended that we change our parameters to –Xms512M and –Xms4096M but since we are running 32-bit java, tomcat would not come up with 4096.
We are also ran out of space in /tmp overnight so I’m not sure if we just have a space issue or if we should be changing JAVA_OPTS parameters. Admins are going to reboot the system this morning.
Any thoughts or guidance would be very much appreciated!