If you are not sure whether or not a Minion has been joined the Master, verify the output of salt-key. The output of the command lists all known keys in the following states:
Nodes in this state have successfully joined the Salt Master
Nodes in this state have not successfully joined because of a bad, duplicate, or rejected key. Nodes in this state require additional user action to join the Master.
Nodes in this state have been explicitly rejected by an administrator.
To verify Minions have joined the Master, run:
salt-key
Example of a system response:
Accepted Keys:
<NODE_NAME>.domain.local
… [snip] ...
Execute salt-key:
Denied Keys:
Unaccepted Keys:
Rejected Keys: