Just as we have seen for PostgreSQL, PgBouncer and most other tools covered in this book, we can either install pgpool from source or just use a binary. Again, we will describe how the code can be compiled from source.

To install pgpool, we have to download it first from the following path:

http://www.pgpool.net/download.php?f=pgpool-II-3.4.2.tar.gz.

Once this has been done, we can extract the tarball:

$ tar xvfz pgpool-II-3.4.2.tar.gz

The installation procedure is just like we have seen already. The first thing we have to call is configure along with some parameters. In our case, the main parameter is --with-pgsql, which tells the build process where to find our PostgreSQL installation.

$ ./configure --with-pgsql=/usr/local/pgsql/

Of course, there are some additional settings: