This is last and final blog on Master-Slave replication in PostgreSQL database. In last blog, we have seen Async node setup. We are exploring Sync node in this blog. We will use the same automation script for Sync node also with two changes in master and one change in slave configuration. Let’s start with master. Read more about Data Replication Setup Using Master and Slave: PostgreSQL- IV[…]
In last few blogs, we have seen how to automate steps required to setup Master-slave nodes. This blog would be the last in this series. Until now we have discussed how the architecture should look like and what parameters are needed to be modified to what value on master and slave node. In this blog, Read more about Data Replication Setup Using Master and Slave: PostgreSQL- III[…]
This is in continuation of My last blog about Meta Commands in PostgreSQL. In last blog I have explained what a Meta command and how to list databases. In next few blogs we will explore few of Meta commands. Lets start exploring schemas. Visit this series of last blog for other command. The command we Read more about PostgreSQL Meta-Command using psql: Command Information -IV[…]
In last few blogs, we have seen how to automate steps required to setup Master-slave nodes. In next few blogs we will explore how High Availability(HA) will be setup. In this blog we will talk about how the architecture look like. To achieve HA in the PostgreSQL database, we should setup a Master-Slave replication environment Read more about Data Replication Setup Using Master and Slave: PostgreSQL – I[…]
In last few blogs, we have seen how to automate steps required to setup Master-slave nodes. In next few blogs we will explore how High Availability(HA) will be setup. We can implement this master-slave environment on separate VMs. We can also implement this on the same machine. For blogging purposes, we will use the same machine for Read more about Data Replication Setup Using Master and Slave: PostgreSQL – II[…]
Master-slave replication setup is the implementation of HA in PostgreSQL. Deployment architecture of 1 master and at least one slave in SYNC mode would be able to provide senses of High Availability of the database. To achieve this we require some steps to be performed into the database which will make one of the nodes Read more about Automating Master and slave replication: PostgreSQL – I[…]
PostgreSQL supports many other tools in form of database extensions like UUID support, dblink. In the same way, it also supports geographic and spatial data with help of PostGIS. This blog will explain how to install PostGIS 2.5 which can be used by PostgreSQL 11. There are many version of this spatial extension of database Read more about PostGIS Installation with PostgreSQL[…]
In the last blog, we have installed PostgreSQL on different Linux platforms ( CentOs, Ubuntu). However, We have leftover to initialize the installation and connection to the database that we will discuss here. Postgres provides more than one way to initialize a database cluster. We will use pg_createcluster in this blog. But before that, we Read more about What is a Database Cluster: PostgreSQL[…]
This is in continuation of My last blog about Meta Commands in PostgreSQL. In last blog I have explained what a Meta command and how to list databases. In next few blogs we will explore few of Meta commands. Lets start exploring schemas. Visit this series of last blog for other command. The command we Read more about PostgreSQL Meta-Command using psql: Command Information -III[…]
This is in continuation of My last blog about Meta Commands in PostgreSQL. In last blog I have explained what a Meta command is all about. In next few blogs we will explore few of Meta commands. Lets start exploring databases. The command we will explore here is:1. \l2. \c Once you connected to a Read more about PostgreSQL Meta-Command using psql: Command Information -II[…]
This is in continuation of My last blog about Meta Commands in PostgreSQL. In last blog we have explained what a Meta command is all about. In next few blogs we will explore few of Meta commands. Let’s start with psql command itself. Once we logged in using psql, the environment should be look like Read more about PostgreSQL Meta-Command using psql: Command Information -I[…]
In our last blog we have discussed the history of origination of PostgreSQL database. This database, like all other RDBMS, has more than one interface to connect to the database. PostgreSQL has psql program as command line interface (CLI) and PgAdmin as graphical user interface (GUI) psql as complete set of commands through which we Read more about PostgreSQL Meta-Command using psql: Generic Information[…]
There are multiple ways of installation of the PostgreSQL database on Unix like platforms. We will explore the installation of PostgreSQL version 12 on CentOS 7 using YUM installation. Let’s start. Verifying the version of CentOS: root@localhost yum.repos.d]# rpm -q centos-release centos-release-7-7.1908.0.el7.centos.x86_64 PostgreSQL allows us to download many version across multiple platform, one should visit its official Read more about PostgreSQL Installation on CentOS 7[…]
There are multiple ways of installation of the PostgreSQL database on Unix like platforms. We will explore the installation of PostgreSQL version 11 on Ubuntu 18.04 LTS using apt installation. Let’s start. Login to Ubuntu and check the version of Ubuntu. postgres@sanjeeva:/home/sanjeeva/postgres$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.5 LTS Release: Read more about PostgreSQL Installation on Ubuntu[…]
Research papers of “System R” from IBM were initially picked up by two professors, Michael Stonebraker and Eugene Wong, at Berkeley University, California. This resulted in a new database called INteractive Graphics REtrieval System i.e. “Ingres“. The work done by this duo for Ingres becomes the foundation of many relational databases like MS SQL Server, Read more about Evolvement of PostgreSQL: Background[…]