gistfile1.txt

^andrew@centos:: ulimit -n                                                                                                               [~]
1024
^andrew@centos:: su - riak                                                                                                               [~]
Password: 
[riak@centos ~]$ ulimit -n
2048
[riak@centos ~]$ cat /etc/security/limits.conf | grep riak
riak          soft     nofile          2048
riak          hard     nofile          4096
[riak@centos ~]$