Closed
Description
I'm getting the following error when running my playbook to update a remote CentOS7
machine
(the same playbook works perfectly well on all my Ubuntu
instances).
____________
< PLAY [all] >
------------
\ ^__^
\ (oo)\_______
(__)\ )\/\
||----w |
|| ||
________________________
< TASK [Gathering Facts] >
------------------------
\ ^__^
\ (oo)\_______
(__)\ )\/\
||----w |
|| ||
fatal: [centos7]: FAILED! => {"msg": "error occurred on host xxx.xxx.xxx.xxx: Failed to create a PTY: [Errno 1] Operation not permitted. It is likely the maximum number of PTYs has been reached. Consider increasing the 'kern.tty.ptmx_max' sysctl on OS X, the 'kernel.pty.max' sysctl on Linux, or modifying your configuration to avoid PTY use."}
to retry, use: --limit @/Users/xxx/ansible/script/update.retry
____________
< PLAY RECAP >
------------
\ ^__^
\ (oo)\_______
(__)\ )\/\
||----w |
|| ||
centos7 : ok=0 changed=0 unreachable=0 failed=1
My CentOS7
instance has enough PTYs as you can see:
# sysctl kernel.pty.max
kernel.pty.max = 5120
Moreover, it's an idle machine. No service is running on it except the default ones.
My host config is:
- macOS High Sierra
10.13.6
- Mitogen from GIT
master (ec05604)
- Python
$ python
Python 2.7.15 (default, Oct 2 2018, 11:47:18)
[GCC 4.2.1 Compatible Apple LLVM 10.0.0 (clang-1000.11.45.2)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
- Ansible from
brew
$ ansible --version
ansible 2.7.5
config file = /Users/xxx/.ansible.cfg
configured module search path = ['/Users/xxx/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
ansible python module location = /usr/local/Cellar/ansible/2.7.5/libexec/lib/python3.7/site-packages/ansible
executable location = /usr/local/bin/ansible
python version = 3.7.1 (default, Nov 28 2018, 11:51:54) [Clang 10.0.0 (clang-1000.11.45.5)]
- My
~/.ansible.cfg
is:
[ssh_connection]
retries=3
pipelining = True
[defaults]
timeout = 20
host_key_checking = False
ssh_args = -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -o ServerAliveInterval=60
strategy_plugins = ~/.ansible/plugins/mitogen/ansible_mitogen/plugins/strategy
strategy = mitogen_linear
[ IMPORTANT ]
if I disablemitogen
, the playbook works well forCentOS7
!!!