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Even think about distributed systems like databases. You absolutely should not call 2 db servers that are configured in a cluster as "redundant" You introduce t
by MrOwen 8y ago
Even think about distributed systems like databases. You absolutely should not call 2 db servers that are configured in a cluster as "redundant" You introduce things like split brain and broken quorum voting (not even possible without a third node) in the event a network connection is severed between them.
- crocal 8y agoYou can use 2 dbs if you apply the STONITH principle (Shoot The Other Node In The Head). Typically, when one node decides to be master, it can switch off with certainty the other one. Routinely used in HA (Highly Available) industrial applications.