Multi-tenancy/co-hosting is always challenging. Running multiple PG instances could help to reduce the internal contention points (scalability issues) within PostgreSQL. However, the load caused by one of the tenants could affect other tenets, which is generally referred to as the “Noisy Neighbor” effect. Luckily, Linux allows users to control the resources...

Percona Monitoring and Management (PMM) is a powerful tool for keeping your databases healthy, but what about PMM itself?  While it comes pre-packaged as an appliance, PMM’s internal workings can be complex. Many users, including our internal teams, frequently ask: “How can I tell if everything inside PMM is functioning properly?”To address this need,...

PostgreSQL releases are incremental evolutions that improve the product. The beta version 17 was recently released, and there are two small items you may overlook unless you have them pointed out to you. So, “Point! Point!”MERGE()MERGE() was a new feature of PostgreSQL 15. It allows you to modify the contents of a target table based […]

Percona is thrilled to announce the release of ARM support in Percona Operator for MongoDB 1.16.0. This new feature addresses one of our community’s top requests and opens up exciting new possibilities for our users.What is ARM, and why is it important?ARM is an architecture for computer processors that is becoming increasingly popular. Major vendors...

In most database systems, like MySQL, PostgreSQL, and MongoDB, replication of some kind is used to create a highly available architecture. Valkey/Redis is no different in this regard. Replication is native functionality to Valkey, supporting multiple replicas, and even chains of replication.To clear up any confusion, understand that Valkey replication...

This is the second part of the series of blog posts unmasking the complexity of MongoDB cluster exposure in Kubernetes with Percona Operator for MongoDB. In the first part, we focused heavily on split horizons and a single replica set. In this part, we will expose a sharded cluster and a single replica set with Istio, […]