Re: pg_upgrade : 9.X to 11.X issue CentoOS 7.6

Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com> writes:
> On 7/23/19 7:17 AM, Perumal Raj wrote:
>> command: "/usr/pgsql-9.2/bin/pg_ctl" -w -l "pg_upgrade_server.log" -D
>> "/data/db/data" -o "-p 5432 -b -c listen_addresses='' -c
>> unix_socket_permissions=0700 -c unix_socket_directory='/var/lib/pgsql'"
>> start >> "pg_upgrade_server.log" 2>&1
>> waiting for server to start....FATAL: unrecognized configuration
>> parameter "unix_socket_directory"

> Well unix_socket_directory changed to unix_socket_directories in 9.3.

Yeah, this is clearly a version-skew problem. pg_upgrade knows it
should say unix_socket_directory not unix_socket_directories to a pre-9.3
server, but that's going wrong somehow.

> Are you sure that /usr/pgsql-9.2/bin/pg_ctl is really pointing to a 9.2
> binary?

For quite some time, Red Hat shipped versions of 9.2.x that were patched
to understand unix_socket_directories not unix_socket_directory. I would
be suspicious that the source server was one of those, except that the
cited path doesn't match where the Red Hat RPMs put it.

regards, tom lane