Itanium 11.23 reboot/patch issue with perl modules

[Ed Loehr_1]

After a reboot (and usually after an OS patch) on our HP-UX 11.23 64-bit Itanium DB servers, our PostgreSQL DB client apps using a perl module linked to a C library (libpq/DBD::Pg libraries and run on the DB server itself cease to work. Instead, they give the standard PostgreSQL connection error message you get when the DB cluster is not running. But we *know* it is running and all other access paths are working. We have found a workaround by switching from 64-bit perl to 32-bit perl, build a 32-bit pgsql, and rebuilding the perl DBD module using 32-bit perl, and linking with the 32-bit pgsql. But the fact we're having to do that is a problem for us.

I don't understand this problem and am at a loss as to where to look. Any ideas?

TIA.

Ed

[Ed Loehr_1]

I should add that it is only those perl client apps running on the DB server itself having any trouble. Remote clients have no problems connecting, so I am suspecting something with the perl library linkages.

TIA.

Ed