openstack-ansible/releasenotes/notes/remove-fax-fail-5038b4b6eb4951b3.yaml
zhaoleilc 058eaab25f Correct a typo in the document
This patch changes 'the problems are are'
to 'the problems are' in releasenotes/notes
/remove-fax-fail-5038b4b6eb4951b3.yaml

Change-Id: I3801f56bc5287c6b99307af34f49b059bb537cad
2020-06-11 17:59:21 +08:00

22 lines
1.4 KiB
YAML

---
other:
- The `max_fail_percentage` playbook option has been used with the default
playbooks since the first release of the playbooks back in **Icehouse**.
While the intention was to allow large-scale deployments to succeed in
cases where a single node fails due to transient issues, this option has
produced more problems that it solves. If a failure occurs that is transient
in nature but is under the set failure percentage the playbook will report a
success, which can cause silent failures depending on where the failure
happened. If a deployer finds themselves in this situation the problems
are then compounded because the tools will report there are no known issues.
To ensure deployers have the best deployment experience and the most
accurate information a change has been made to remove the
`max_fail_percentage` option from all of the default playbooks. The removal
of this option has the side effect of requiring the deploy to skip specific
hosts should one need to be omitted from a run, but has the benefit of
eliminating silent, hard to track down, failures. To skip a failing host
for a given playbook run use the `--limit '!$HOSTNAME'` CLI switch for the
specific run. Once the issues have been resolved for the failing host rerun
the specific playbook without the `--limit` option to ensure everything
is in sync.