EL7 and Apache private /tmp/ directories

Greetings,

In EL7 (RHEL+CentOS), as a security measure, Apache processes get a private /tmp/ directory [1].  As a result, this means that any Apache processes attempting to connect to postgresql using a domain socket will be unable to connect.

EL7 (and Fedora) address this problem by updating the following setting in postgresql.conf [2]

unix_socket_directories = '/var/run/postgresql, /tmp'

Thanks,
James

[1] https://fedoraproject.org/wiki/Features/ServicesPrivateTmp
[2] http://bugzilla.redhat.com/825448
[3] http://pkgs.fedoraproject.org/cgit/postgresql.git/tree/postgresql-var-run-socket.patch