When issuing the following command on Primary and Replica nodes, vPostgres returns a max connection result.
su - postgres -c "/opt/vmware/vpostgres/current/bin/psql -p 5433 -A -t -c \"SHOW max_connections;\""
However, when the same command is issued on the Data node, the following error displayed:
psql.bin: error: connection to server on socket "/tmp/.s.PGSQL.5433" failed: No such file or directory
Aria Operations 8.10
Aria Operations 8.12
Aria Operations 8.14
Aria Operations 8.16
Aria Operations 8.17
Port 5433 establishes the connectivity from the data node within the same cluster to the Postgres Central DB on the Primary node. This port is only available on the Primary/Replica node.
The following command can only be issued and will only get a result from the Primary/Replica node:
su - postgres -c "/opt/vmware/vpostgres/current/bin/psql -p 5433 -A -t -c \"SHOW max_connections;\""