0FATAL: too many connections for database

Hi All,

We are currently seeing "FATAL: too many connections for database error" in the $PG_DATA/pg_log.

However, pg_stat_activity shows 50 connections with max_connections set to 800 in postgresql.conf and the role connection limit in pg_roles for all users is unlimited (-1).

Any ideas what could cause the error when connections seem to be available?

Thanks for any suggestions!

Lacey