saltstack 官方英文文档 关键点摘抄

reactor:
While the reactor system uses the same basic data structure as the state system, the functions that will be called using that data structure are different functions than are called via Salt's state system.
The Reactor can call Runner modules using the runner prefix, Wheel modules using the wheel prefix, and can also cause minions to run Execution modules using the local prefix.

Running and debugging salt states.

Once the rules in an SLS are ready, they should be tested to ensure they work properly. To invoke these rules, simply execute salt '*' state.highstate on the command line. If you get back only hostnames with a : after, but no return, chances are there is a problem with one or more of the sls files. On the minion, use the salt-call command: salt-call state.highstate -l debug to examine the output for errors. This should help troubleshoot the issue. The minions can also be started in the foreground in debug mode: salt-minion -l debug.