Severalnines Blog
The automation and management blog for open source databases

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135 blog posts in 1 category

An Overview of Database Indexing for MongoDB

This blog provides an overview of MongoDB NoSQL Database Indexing, how to create them and measure performance.

A Guide to Pgpool for PostgreSQL - Part One

Pgpool is a useful piece of software for connection pooling and load balancing. This is part one of the blog which provides an overview and tips on how to get up and running with pgpool.

How to Make Your MySQL or MariaDB Database Highly Available on AWS and Google Cloud

Cloud environments are popular these days, and they come with a variety of tools to increase availability. In this blog post, we will show you how leverage these to build a highly available MySQL or MariaDB database. This blog post makes use of Amazon Web Services and Google Cloud Platform.

My Favorite PostgreSQL Queries and Why They Matter

In today's data-driven world, data is valuable. Extracting insight, answering questions, and meaningful metrics from data by way of querying and data manipulation is an integral component of SQL in general. This blog presents a combination of 8 interesting, differing PostgreSQL queries or types of queries to explore, study, learn, or otherwise manipulate data sets.

New Whitepaper: How to Design Highly Available Open Source Database Environments

Download our new whitepaper on how to design highly available open source database environments. It discusses the requirements for high availability in database setups, and how to design the system from the ground up.

Comparing Replication Solutions from Oracle and MySQL

In this post, we are going to compare Oracle 12c logical replication with MySQL 5.7. Both technologies offer reliable standby systems to offload production workload and help in case of disaster. We will take a look at their architectures, analyze pros and cons and go through the steps on how to set them up.

Webinar Replay: How to Design Open Source Databases for High Availability

Watch this webinar replay on how to design open source databases for high availability. From discussing high availability concepts through to failover or switch over mechanisms, we cover all the need-to-know information when it comes to building highly available database infrastructures.

A Guide to Using pgBouncer for PostgreSQL

This blog provides an overview of pgBouncer, a connection pooler for PostgreSQL that dramatically reduces processing time.

Updated: Become a ClusterControl DBA: Making your DB components HA via Load Balancers

There are various ways to retain high availability with databases. You can use Virtual IPs (VRRP) to manage host availability, you can use resource managers like Zookeeper and Etcd to (re)configure your applications or use load balancers/proxies to distribute the workload over all available hosts.

Comparing Oracle RAC HA Solution to Galera Cluster for MySQL or MariaDB

This blog provides a comparison of achieving high availability with Oracle RAC vs MySQL Galera Cluster.