Publications by tag databases

Learn from a real-world journey of upgrading a heavily loaded PostgreSQL cluster from v13 to v16 while keeping it highly available. This story comes with detailed listings and pitfalls encountered on the way to success.

Downsizing a PostgreSQL cluster’s primary server can manifest into an exciting engineering adventure. Here’s our recent experience performing such a routine task and the lessons we learned from it.

Using PgBouncer for your PostgreSQL databases in production? Monitoring this connection pooler is essential to ensure the applications’ reliability and performance. Learn how to make it just right with real-life examples for Odarix.

Learn what you should consider before running stateful components apps in Kubernetes, how these apps work in K8s, and which operators we use for ClickHouse, Redis, Kafka, PostgreSQL, and MySQL.

Get your Amazon RDS instances ready to survive a higher load with vertical autoscaling. Learn how to implement it for your AWS-based databases and benefit from our ready-to-use Python scripts.

Learn how monitoring solutions evolved and how they work today. Dive into the challenges of storing many metrics in the TSDB and how Prometheus addresses them.

Atlas is an Open Source tool that simplifies using the Infrastructure as Code approach for your database schemas. In this article, we will give it a try for MySQL and PostgreSQL databases running in containers.

We continue experimenting with KeyDB as a high-performance Redis alternative. This time, we’ll cover its fault-tolerant multi-master setups and share our practical use cases.

We had an etcd cluster deployed in the production K8s cluster and used for a third-party app. Here is a list of configurations we used and actions we performed to migrate it without impacting the running app.

Swapping Redis for KeyDB is not a silver bullet. However, we had another positive experience recently when it helped to get better performance with minimum engineering efforts.

CloudNativePG is a new Kubernetes operator for PostgreSQL DBMS, released early this year. Let's examine its main features and compare them with other existing solutions.

Renewing Let’s Encrypt root certificates for legacy CentOS, handling an error in DNS records with Ingress, restoring a PgSQL table from a backup, dealing with a tricky sharding problem in Elasticsearch, and more.

Migrating a Patroni-based PostgreSQL (v11.13) cluster brought us some unforeseen issues. Dive into this in-depth tutorial to avoid them when you have a similar challenge!

Sharing our experience deploying Keycloak together with Infinispan to a Kubernetes cluster and ensuring stability and scalability in such a setup.

Here are the challenges of using MongoDB in Kubernetes and the options we have to overcome them including ready-to-use Helm charts and Kubernetes operators.