Severalnines Blog
The automation and management blog for open source databases

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Automating PostgreSQL Daily Tasks Using Jenkins

This blog details how to automate several daily tasks you need to run a successful PostgreSQL setup using Jenkins.

An Overview of PostgreSQL & MySQL Cross Replication

The blog gives a detailed account of achieving cross replication between MySQL and PostgreSQL databases using two of the renowned tools of the open source community. A step-by-step demo configuration gives the audience an easy to implement guide including a summarized explanation of which tool is rated over the other.

PostgreSQL: Query Parallelism in Action

A parallel query is a method used to increase the execution speed of SQL queries by creating multiple query processes that divide the workload of a SQL statement and executing it in parallel or at the same time. In this blog, we’ll explore this concept and how it relates to PostgreSQL.

How to Optimize PostgreSQL Logical Replication

Logical Replication or pglogical is a method of replicating specific data objects (tables) and their changes to the replica in real-time which is similar to streaming replication. The term logical is in contrast to physical replication, which uses exact block addresses and byte-by-byte replication. This blog provides tips on how to optimize logical replication system.

Comparing Data Stores for PostgreSQL - MVCC vs InnoDB

MVCC is one of the primary ways for most of the RDBMS to solve read-write contention. In this blog, we’ll see in details how PostgreSQL and InnoDB implement the same. Also, we’ll see some of the major differences between their implementation.

Benchmarking Managed PostgreSQL Cloud Solutions - Part Four: Microsoft Azure

The last in our four part series “Benchmarking Managed PostgreSQL Cloud Solution” this blog takes a close (and somewhat painful) look at Microsoft Azure and benchmark it for PostgreSQL using pgbench and sysbench.

How to Deploy PostgreSQL to a Docker Container Using ClusterControl

Deploying a single PostgreSQL instance on Docker is fairly easy, but deploying a replication cluster requires a bit more work. In this blog, we’ll see how to deploy PostgreSQL on Docker and how we can make it easier to configure a primary-standby replication setup with ClusterControl.

How to Automate Database Failover with ClusterControl

It might not be possible to avoid disasters, but with some preparation, it is certainly feasible to reduce the impact on your business. Automatic failover is one of those things. The goal of database failover automation is to minimize your downtime and reduce loss of money. However, failover can not always be automated as there are risks; false positives may lead to unnecessary escalations.

In this blog, we’ll have a look components you may use to build an automated stack, and take a closer look at ClusterControl’s failover functionality.

How to Use pgBackRest to Backup PostgreSQL and TimescaleDB

Managing backup environments can be complex, and, in case of failure, it’s important to reduce downtime and loss of data as much as possible. Full, differential and incremental backups are good options, they also help reduce the disk space usage. There are other important features like backup verification, uploading to remote systems or cloud, and compression, to complete our backup strategy. In this blog, we’ll see how we can use pgBackRest for backing up PostgreSQL and TimescaleDB and how we can manage all of these features from the same system.

An Overview of Streaming Replication for TimescaleDB

TimescaleDB uses a stream of write-ahead log (WAL) records to keep the standby databases synchronized. In this blog, we’ll review some concepts related to Streaming Replication and how ClusterControl can help us configure it in an easy way.

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