I'm running an stress test on my openfire server and I cannot connect more than 4k users. When my computer connects 4k users, just to be sure that the problem is in the EC2, I run same test with different user offset on another computer, and still no improvement.
This is my ulimit -a.
ubuntu@amazon.ip:~$ ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 31534
max locked memory (kbytes, -l) 64
max memory size (kbytes, -m) unlimited
open files (-n) 65535
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 31534
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
This is the end of my /etc/security/limits.conf
# End of file
* soft nofile 65535
* hard nofile 65535
What do you suggest?