The error "Temporary failure in name resolution" comes out of the DNS lookup sub-system on your OS, and likely indicates a fault of some sort when accessing one or more of your nameservers (defined in /etc/resolv.conf). If this is a repeating yet intermittent problem, I'd recommend contacting the DNS maintainers to find out if there are maintenance events or other downtime related issues ongoing with their servers. You can also check your /var/log/messages or "dmesg" contents for more clues about this lower-env trouble. The RM and other alerts you see coming out as a result of this failure is an avalanche effect. The agent polls metrics and states from the roles it runs, by contacting their webserver end-points. Since that's failing to resolve (its really a local address, shouldn't have to go through DNS if your /etc/nsswitch.conf is setup right) the alert gets flagged too. Its worth also running a local nameservice caching daemon (Such as nscd, etc.) to help cushion such effects to a certain degree and also to prevent overloading the DNS with too many queries which could also cause this potentially. ... View more