Re: PgPool II configuration with PostgreSQL 8.4

On Wed, May 5, 2010 at 10:17 PM, Neha Mehta <Neha(dot)Mehta(at)lntinfotech(dot)com>wrote:

> I am trying to have synchronous master-master replication in PostgreSQL8.4
> using PgPool II. I am not able to configure PgPool on the system, it gives
> me an error, libpq is not installed or libpq is old.
>
(FYI: This topic is probably more germane to the -ADMIN list, or at least
-GENERAL, than it is to -PERFORM.)

Is there a particular reason you're building pgpool, rather than installing
it via your distribution's package manager? Most distributions have it
available these days. (At a minimum, any distribution that's widely-used
and well-enough understood to warrant hosting something as critical as your
RDBMS should have it.)

FWIW, I'm successfully using pgpool-II against a pair of 8.4 instances (in
the connection pool mode, not replication, and all installed from the PGDG
RPM repository). I'm also using Bucardo (in its multi-master/swap mode) to
handle the replication, as suggested by someone else down-thread. So
there's an existence proof that it *can* work.

Finally, when PostgreSQL is installed, libpq.so.N is usually put under
/usr/lib(64)/, not under the postgres install directory. Your distribution
should have a postgresql-devel package available which will provide a
pg_config command that can be used to pass the *actual* installed locations
to a configure invocation, as in:

./configure --with-pgsql-libdir=`pg_config --libdir`...

rls

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:wq