There is issue [1] with reactor in salt 2017, one of the workarounds is to set reactor workers to 1 [1] https://github.com/saltstack/salt/issues/47539 Change-Id: I47d76cc1dc5d0afe6d8b215e2d32cdbab3ac1a8c Related-Prod: https://mirantis.jira.com/browse/PROD-21463