FMS environment:
FMS is a single VM with embedded mySQL database. We started it initially with 4GB ram, 2 processors running version 5.2.2. The console ran a bit slow, but was acceptable given that at that time we weren't even at the minimum requirements. As we added agents it started to slow down. Increased to 6 GB ram, performance went back to initial. Increased a few weeks after to 8 GB ram due to another drop in performance, but did not help any. Upgraded to 5.2.3 also did not help performance.
The VM was then given 4 processors, and 12 GB RAM. FMS service would start, run for approximately 5 minutes, and stop. Resized the Pagefile for windows from 6 GB to 19.3GB. Server would start and run, but after about 10 minutes the performance is at a crawl. Have restarted several times (service and OS) and still crawls. CPU is basically maxed out, and Pagefile usage is at 17.9 GB.
What can be done to improve performance?
Default memory allocated to JVM (environment in which Foglight runs) is too low for amount and type of agents being used.Default memory allocated to JVM (environment in which Foglight runs) is too low for amount and type of agents being used.
Increase the amount of memory that is allocated to the JVM (environment which Admin Console runs) by modifying the
fogServerHomeconfig foglight.config file
look for the following lines:
foglight.vm.option0 =
foglight.vm.option1 =
If they are commented out (have a '#' symbol in front of them), un comment them (remove the '#' symbol) and change the allocation to the following:
foglight.vm.option0 = "-Xms2048m";
foglight.vm.option1 = "-Xmx2048m";
If the foglight.vm.option0 = and foglight.vm.option1 = lines do not exist in the foglight.config file, add the entries above with the newly allocated settings.
Xms is minimum memory allocated, Xmx is the maximum allocated. The default for both (even if lines are missing from foglight.config file, is 1024. You may have to experiment with multiples of 256, if 2048 is too much to allocate on your machine - example: 1024, 1280, 1536, etc.
