Missed hosts on playbook run

[Bill Carlson]

Hello all,

Currently running v2.1.0, have noted several times where hosts are missing in a playbook run. No failure, no error for those hosts, no mention at all.
It's also random which hosts get missed.

One common item I've noticed is this occurs when some host in the run has failed, either on a task or timeout during setup. Serial is used.

Is this a known issue?


ansible.cfg, if it matters:

remote_user=root
forks=10
timeout=30

In playbook file:

- hosts: blah
  serial: 10
  roles: blah blah


Host count is 90+.

Thanks,

Bill Carlson