pgpool-II may do what you want. Lots of people use it.
On Wed, Jan 22, 2014 at 1:35 PM, Dmitry Koterov <dmitry.kote...@gmail.com>wrote: > Hello. > > I googled 1 hour approximately, but have not found a ready solution for > this. So maybe this feature is in PostgreSQL todo-list, or something > similar exists somewhere... > > Before the actual question, I'd like to give a small analogy. What I > mostly love in MongoDB is that it supports a fully transparent scheme of > replication failover. If you have >= 3 MongoDB notes (e.g. 1 master and 2 > replicas), and the master dies, in a couple of seconds a replica is > AUTOMATICALLY elected as a new master, and all other replicas are > AUTOMATICALLY begin to follow it. If the dead master is back again > suddenly, it first appears as a replica, but in a couple of seconds it > becomes a new master back (because it initially had a highest weight > assigned), and all replicas become to follow it. All these steps are done > automatically and transparently. It just works. > > So does something similar and more-or-less stable exist for PostgrSQL too? > > P.S. > The links I've found already: > - http://www.databasesoup.com - that's it, but too young and, possibly, > not yet stable > - repmgr: always referred at StackOverflow (thousands of times), but it > does not provide an automatic failover :-) > - pgpool-2: it contains a couple of config options for "failover", but in > practice they are too poor to be used in production and with large > databases, I believe after reading the docs > - pacemaker's plugin: extremely complex (IMHO) overweighted for this > purpose > - EnterpriseDB's solutions: they are not free >
