[jcase]

Automatic failover is a pretty big feature though. I wish Postgres had a built-in solution. Sure, I could use Pacemaker but it's no where near as painless.

[lucian1900]

You should be aware however that Mongo's failover incurs downtime.

A Postgres bouncer + WAL replication achieves a similar result: There is no downtime on failover, but there is a single slave.