Publications by tag #databases

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.

Debezium is a distributed platform for change data capture built on top of Apache Kafka. Here is a short introduction to it and our experience of connecting it with two DBMSs.

Our new exciting SRE/Ops stories include complicated Linux server migration (bare-metal to VM), large PostgreSQL replica recovery, small case with ClickHouse Kubernetes operator, and abnormal result of CockroachDB upgrade.

Fascinating lessons learned using the Kubernetes operator for PostgreSQL of our choice — Postgres Operator by Zalando. Problems and solutions, the story of migrating production.

Evaluating five popular Kubernetes operators for PostgreSQL: Stolon, Crunchy Data, Zalando, KubeDB, and StackGres — and comparing them in a features matrix.