Hi, On 2018-10-15 00:15:53 +0530, bhargav kamineni wrote: > Hi Team, > > I am getting this ERROR while starting my second slave server > > PANIC: too many replication slots active before shutdown > HINT: Increase max_replication_slots and try again. > > max_replication_slots on my master is 2 and one of them is already active > for another slave, > do i need to increase this parameter for the need of working of another > slave ? if so whats the reason ? You're getting that error on the standby, not the primary, right? In all likelihood the problem is that you copied over replication slots to your standby server, but that *on the standby* haven't set max_replication_slots high enough. Greetings, Andres Freund