Above shown is an overview about Slony-I Asynchronous replication in short. For more information,Slony-I documentation is your best friend :). Let’s start with replication methods, in perltools method,you need to configure slony at the time of source installation to enable built-in perl scripts. These scripts start with “SLONIK_” and they are designed to carry replication…
PostgreSQL Processes are very few and countable like, writer process, wal writer proces,stats collector,autovacuum process,syslogger process,archiver process & daemon postmaster. If replication enabled then there will be wal sender & wal receiver process. In my trainings, I use to show process information by executing “ps -ef | grep postgres”, but how could I show the…
Slony-1 2.1 has very good fixes and new features like adding Bulk tables, improvement on WAIT FOR with Merge Set/Move Set, support for TRUNCATE on replicating tables and many more. Am using Slony-I 2.0.7, so thought of upgrading it to latest version. Upgrading Slony-I is very simple and it can be achievable in few steps….
PostgresPlus Advance Server 9.1(PPAS) is EnterpriseDB product, which comes with enterprise features as additional with community PostgreSQL. Most of the contrib modules(pgfoundry) can be pluged into this product using Stackbuilder. However,currently Pl/Proxy is not bundled or downloadable with Stack-builder. So,here is how you can compile the Pl/Proxy with PPAS 9.1. 1. Download Pl/Proxy. wget http://pgfoundry.org/frs/download.php/3274/plproxy-2.4.tar.gztar…
Currently am working on Migrations from Oracle to PostgreSQL. Though am DBA, these days am learning a bit on Developer track too … 🙂Let’s see a small feature of Oracle and a similar way in PostgreSQL. Autonomous Transaction,what is it ? An autonomous transaction is an independent transaction that is initiated by another transaction, and…
