Hi, In the master pg_hba.conf file, standby server hostname name is not being read even with the domain name, but server ip is working fine.
output of /etc/hosts is given below 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 <server ip> <hostname>.domainname hostname Regards. On Fri, Dec 1, 2023 at 3:33 AM Ron Johnson <ronljohnso...@gmail.com> wrote: > On Thu, Nov 30, 2023 at 3:41 PM Atul Kumar <akumar14...@gmail.com> wrote: > >> Hi, >> >> I have postgres 12 running in centos 7. >> >> I have configured streaming replication between one master and one >> standby server. >> >> In the pg_hba.conf file of the master server, I have put the standby >> server's hostname instead of IP and due to which replication got broken and >> I started getting below error. >> >> FATAL: no pg_hba.conf entry for replication connection from host >> "10.20.8.22", user "replication", SSL off >> >> 2023-11-30 12:00:25 PST|pid=24096|FATAL: XX000: could not connect to the >> primary server: FATAL: no pg_hba.conf entry for replication connection >> >> from host "10.20.8.22", user "replication", SSL on >> >> >> I put the ip of standby back in pg_hba.conf file of the master server and >> replication got started, though in the standby server I mentioned the >> hostname of master in primary_conninfo on the standby side. >> >> >> So why is the master not reading the hostname of standby ? What am I >> missing here ? >> > > You'd have to show us pg_hba.conf and /etc/hosts. > > My guess, though, is that you're not taking the domain name into account. > >