I'm trying to configure pgpool as the load balancer for my Postgres cluster. I have two postgres nodes, 1 master and 1 slave.
My pg_hba.conf looks like
hostssl user mydb 1.1.1.1/32 md5
hostssl user postgres 1.1.1.1/32 md5
host user mydb 1.1.1.1/32 md5
host user postgres 1.1.1.1/32 md5
where 1.1.1.1/32 is my actual pgpool server IP.
If I try to establish a connection to ether master or slave using psql right from the pgpool container, I can do it without any problems. But when I start pgpool I got this error message:
2021-10-26 13:50:13: pid 753: ERROR: backend authentication failed
2021-10-26 13:50:13: pid 753: DETAIL: backend response with kind 'E' when expecting 'R'
2021-10-26 13:50:13: pid 753: HINT: This issue can be caused by version mismatch (current version 3)
2021-10-26 13:50:13: pid 736: ERROR: backend authentication failed
2021-10-26 13:50:13: pid 736: DETAIL: backend response with kind 'E' when expecting 'R'
2021-10-26 13:50:13: pid 736: HINT: This issue can be caused by version mismatch (current version 2)
If I edit pool_passwd file and set some invalid password I got a proper error
2021-10-26 13:59:03: pid 736: ERROR: md5 authentication failed
2021-10-26 13:59:03: pid 736: DETAIL: password does not match
So I guess that's not a problem with my postgres credentials.
Any ideas?