From: Tatsuo Ishii [mailto:is...@sraoss.co.jp] > I don't know what PgJDBC is doing, however I think libpq needs to do > more than just retrying. > > 1) Try to find a node on which pg_is_in_recovery() returns false. If > found, then we assume that is the primary. We also assume that > other nodes are standbys. done. > > 2) If there's no node on which pg_is_in_recovery() returns false, then > we need to retry until we find it. To not retry forever, there > should be a timeout counter parameter.
It may be convenient for libpq to be able to retry connection attempts for a specified duration (by failover_timeout or such), because it eliminates the need for the application to do the retry. But I think it's a desirable feature, not a required one. Regards Takayuki Tsunakawa
