[root@rabbitmq rabbitmq]# ulimit -n 65535

[root@rabbitmq rabbitmq]# ulimit -n

65535

[root@rabbitmq rabbitmq]# vim /etc/security/limits.conf

* soft nofile 65536

* hard nofile 131072

* soft nproc 2048

* hard nproc 4096

[root@rabbitmq rabbitmq]# rabbitmqctl stop

Stopping and halting node rabbit@rabbitmq

[root@rabbitmq rabbitmq]# rabbitmq-server -detached

Warning: PID file not written; -detached was passed.

[root@rabbitmq rabbitmq]#