PostgreSQL postmaster will not start after configuring for SymmetricDS I'm trying to configure SymmetricDS for use with PostgreSQL, a database platform widely supported by the former.

When running through the quick-start tutorial (which leads you to some pre-setup documentation), I am instructed to append the following line to postgresql.conf:

custom_variable_classes = 'symmetric'


The next step of the tutorial requires the postmaster to be running (at least that's what I glean from the stack trace...), so I

service postgresql-9.2 start


but this fails.

Without this single line added (or if it's commented out), PostgreSQL starts as expected.

I must be doing something wrong, so what is it?


yum install postgresql92 postgresql92-server
Download and unzip SymmetricDS into ~
service postgresql-9.2 initdb
Edit /var/lib/pgsql/9.2/data/postgresql.conf as above
I must be doing something wrong, so what is it?


Per the 9.2 release notes, custom_variable_classes was removed. It is no longer required or supported. You can just leave it out without problems.