[Fail2ban-users] fail2ban open files exceeded

[<ima...@mo...>]

Fedora 25

I am trying to enable the jail functions but getting numerous errors
dealing with too many files open.

2017-06-08 10:38:04,410 fail2ban.transmitter    [2387]: WARNING Command
['add', 'mysqld-auth', 'auto'] has failed. Received OSError('Cannot
initialize new instance of inotify, Errno=Too many open files (EMFILE)',)


iptables -w -I INPUT -p tcp -m multiport --dports ssh -j f2b-sshd --
failed with [Errno 24] Too many open files: '/tmp/fai2ban_agrqnj5f.stdout'
2017-06-08 10:38:04,533 fail2ban.actions        [2387]: ERROR   Failed to
start jail 'sshd' action 'iptables-multiport': local variable 'stdout'
referenced before assignment

iptables -w -I INPUT -p tcp -m multiport --dports ssh -j f2b-sshd-ddos --
failed with [Errno 24] Too many open files: '/tmp/fai2ban_9sost_lb.stdout'

2017-06-08 10:38:04,662 fail2ban                [2387]: CRITICAL Unhandled
exception in Fail2Ban:
Traceback (most recent call last):
  File "/usr/lib/python3.5/site-packages/fail2ban/server/jailthread.py",
line 66, in run_with_except_hook
  File
"/usr/lib/python3.5/site-packages/fail2ban/server/filtersystemd.py",
line 263, in run
  File "/usr/lib64/python3.5/site-packages/systemd/journal.py", line 298,
in wait
OSError: [Errno 24] Too many open files


I have played with sysctl fs.file-max and ulimit -n to set a max 50000.
ulimit -Hn and ulimit -Sn both report 50000 but when I start fail2ban I
still get the "too many files open" errors.