[Pgpool-general] Question about binary install of pgpool-II

[Tatsuo Ishii]

> Hello,
> I have the following configuration in my development environment:
> 
> 1. CentOs machine with pgpool-II installed from these binaries 
> - pgpool-II-90-3.0.1-1.fhel5.x86_64.rpm
> - pgpool-II-90-devel-3.0.1-1.fhel5.x86_64.rpm
> 
> 2. CentOS machine with PostgreSQL 9.0.2 installed
> 
> 3. CentOS machine with PostgreSQL 9.0.2 installed
> 
> So, I currently have pgpool configured to see the two remote database servers.
> And I was able to create a database from pgpool and see it replicate to the
> remote servers.
> 
> I also tested a scenario where I took down the master node and watched (via the
> log file) how pgpool made the remaining node the master. So I feel the fail-over
> functionality is working as expected.
> 
> However, I'm having trouble understanding what is required to configure pgpool
> and the remote database servers to utilize replication and online recovery.
> After reading the user manual, tutorial and other sources, it seems I need to
> install pgpool-regclass.sql and pgpool-recovery.sql. I can't execute the first
> one on machine 1 as it complains that there is no such file or directory as
> $libdir/pgpool-regclass...I wonder if because I used the binary installs and did
> not build it from source, I may not have certain environment variables set?
> 
> Also, do I still follow all the online recovery instructions found at
> http://pgpool.projects.postgresql.org/pgpool-II/doc/pgpool-en.html#online-recovery
> ? Or, do I tweak them in any way because I did not install from source?

You need to tweak the rpm binary. But if you are novice, that would be
hard I guess. I suspect it's rather easy to install from the source
code.

> Lastly, when the instructions say to execute psql commands with *.sql files, is
> it assumed that this is on the machine where PostgresQL is installed or where
> pgpool is installed?

PostgreSQL.

> Thank you very much in advance for any help. I'm a Unix novice and new to pgpool.
> 
> Vanessa Pao
> 
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