That's weird. We have used salt to manage hundreds of machines for a few years and have had no issues with bugs. However, we are only using it with ubuntu so that may be a reason we haven't encountered the bugs you speak of.
I will note that the zmq layer very occasionally seems to loose connections and you need to ssh into a machine and restart the salt minion, that's the only issue I've seen.
I will note that the zmq layer very occasionally seems to loose connections and you need to ssh into a machine and restart the salt minion, that's the only issue I've seen.