Enable updated in /etc/sysctl.conf parameters for UseLargePages
OS of vApp has 32 GB RAM
IM (Wildfly) has 24 GB RAM as max JVM memory.
We have set the parameter of kernel.shmax=34359738368
And calculated the vm.nr_hugepages = 16384
vApp was rebooted. We can login with config but have limited access.
bash: fork cannot allocate memory
CA IDENTITY SUITE (VIRTUAL APPLIANCE)
Caused by lack of RAM. "Hugepages" was miscalculated and set too high at 32 GB (16284 x 2k pages).
If the system does not allow you to revert changes, have your VM administrator add additional RAM, (temporarily or permanently).