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375 blog posts in 13 categories

Announcing ClusterControl 1.7.1: Support for PostgreSQL 11 and MongoDB 4.0, Enhanced Monitoring

This blog provides an overview of the next iteration of the agent-based monitoring features for MySQL, Galera Cluster, PostgreSQL and ProxySQL in ClusterControl with its 1.7.1 release, support for PostgreSQL 11 and MongoDB 4.0, as well as a whole range of new monitoring and backup management features for PostgreSQL … and more.

MySQL Performance Cheat Sheet

You would be surprised by the number of MySQL installations running default configurations, regardless of the workload. However, what works well for a read-intensive workload might not work as well for a write-intensive one. Configuration parameters also need to take into account the underlying hardware. This cheat sheet provides some quick tips on how to tune some of the key MySQL variables in order to improve performance.

Severalnines 2018 Momentum: Raising the Bar on MySQL, MariaDB, PostgreSQL & MongoDB Management

Read about 2018 at Severalnines: from our top achievements of the year via our year-end video all the way through to our most read and watched content for MySQL, MariaDB, PostgreSQL & MongoDB users.

MySQL in 2018: What’s in 8.0 and Other Observations

This blog details MySQL’s accomplishments in 2018, including the release of MySQL 8.0 which includes changes to roles and the integration of NoSQL.

Database High Availability Comparison - MySQL / MariaDB Replication vs Oracle Data Guard

This blog compares MySQL replication vs Oracle Data Guard solution for High Availability.

How to Improve Replication Performance in a MySQL or MariaDB Galera Cluster

Can we increase Galera performance if we speed up applying data that is replicated between its nodes? In this blog post, we assess the impact of having multiple wsrep_slave_threads on the overall performance of Galera cluster.

Webinar Replay: How to Manage Replication Failover Processes for MySQL, MariaDB & PostgreSQL

Watch the replay of this webinar for a detailed overview of what failover processes may look like in MySQL, MariaDB and PostgreSQL replication setups. We’ll cover the dangers related to the failover process and look at how ClusterControl manages it as well as how it can be configured for both assisted and automated failover.

MySQL & MariaDB Query Caching with ProxySQL & ClusterControl

A query cache can greatly improve database performance, and there are various types of mechanisms available - from the inbuilt MySQL query cache to external key value stores like memcached or Redis. In this blog, we’ll show you how to cache your queries via ProxySQL, and avoid the overhead of an additional dedicated caching layer.

MySQL on Docker: Multiple Delayed Replication Slaves for Disaster Recovery with Low RTO

A delayed replication slave is useful in recovering from accidental data deletion. But how long should the delay be? Too short delay might not be enough for you to get to a terminal and stop an offending query. Too long delay means a long recovery time when catching up.

This blog post shows how to deploy multiple MySQL delayed slaves on one single physical host with Docker, and shows some of the recovery scenarios.

Database Backup Encryption - Best Practices

Backups that contain critical data are stored offsite as part of a disaster recovery solution. Encryption is a basic requirement, but how do you ensure you have the right encryption? How do you manage the encryption keys? And once everything is encrypted, how do you ensure you have the right data in your backups? This blog will discuss some of the best practices related to backup encryption.