Troubleshooting the installation
Ansible is a tool, written by people, that runs playbooks, written by people, to configure systems that would ordinarily be manually performed by people, and as such, errors can occur. The end result is only as good as the input.
Typical failures either occur quickly, such as connection problems, and will be relatively self-evident, or after long running jobs that may be as a result of load or network timeouts. In any case, the OpenStack-Ansible playbooks provide an efficient mechanism to rerun playbooks without having to repeat the tasks it has already completed.
On failure, Ansible produces a file in /root (as we're running these playbooks as root) called the playbook name, with the file extension of .retry. This ...
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