A while back we added capability to hive-js (one of the primary libraries used to develop frontends like hive.blog) for it to detect when a node starts failing and allow for it to failover to other nodes. The frontends nowadays also allow for you to set which set of nodes you want it to be able to failover too, and the order in which that should take place. Still, there's probably more than can be done to improve the failover process.