Linux Ulimit OpenFiles

example error

   Feb 11 01:55:05 server service[26075]: INFO: I/O exception (java.net.SocketException) caught when processing request to {}->http://10.55.55.5:41111: Too many open files

Check ulimit
```
   $ ulimit -n
1024
```

getACL = 0.000s
init = 0.001s
load_multi_cfg = 0.000s
run = 0.010s
send_page = 0.009s
send_page_content = 0.001s
total = 0.011s