Personal blog of Yzmir Ramirez

Data consistency and availability across distributed systems is crucial, particularly in environments that rely heavily on replication. In Valkey, one critical aspect of this replication process is the replication backlog size. This configuration parameter is vital in managing how much data can be temporarily stored to accommodate replicas that may fall behind the master node. […]

In this blog post we will talk about how to get useful information out of the Valkey OR Redis keys. This would be helpful in many scenarios, like troubleshooting a specific key thing and verifying the resources, especially the “Memory” the data set is holding. Let’s see a few bunch of operations we can perform […]

Managing keys inside Valkey/Redis is crucial, especially when we need to test in a different environment or restore a partial/specific key-value dataset for a migration or production movement event. Although we can use a full RDB snapshot + AOF to get the full data set, that is not always feasible if we focus on a […]

Migrating from Redis to Valkey can significantly reduce costs associated with private licensing for your application. However, the biggest concern in any migration is transitioning without disrupting service or causing downtime. In this blog post, we’ll guide you through a step-by-step approach to smoothly migrate from Redis to Valkey without interrupting your application’s operations, providing […]

Originally published on The New Stack. Open source Valkey is emerging as a top contender for the 75% of companies concerned about Redis’ licensing change, finds Percona research. The key-value store landscape is experiencing a shake-up, as Redis’ recent licensing changes have driven users to search for alternatives. Our latest Percona survey looks deeper into […]

In this blog post, we will show you how to add external exporters to Percona Monitoring and Management (PMM) and monitor various services. Our focus will be on Valkey/Redis, but the principles apply to other technologies as well. PMM uses VictoriaMetrics, which is compatible with Prometheus. Prometheus has numerous exporters that you can use.  When […]

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 is a different concept compared […]

In this blog post, we are going to implement the concept of sharding in a Valkey setup. This is a built-in feature and can be implemented by enabling clustering in the Valkey configuration.Sharding, in general, helps in distributing/scaling application writes over multiple nodes. In a similar fashion, it works in Valkey. Here, it uses the […]

As you are probably aware, Redis decided to switch to a source-available, SSPLv1 license. This means, as of Redis 7.4, it is no longer considered “open source.” Because of this change, Valkey launched its fork, retaining the original BSD open source license. At the same time, Percona announced our partnership with Valkey and the Linux […]

Valkey 7.2.5 has been officially released as the first General Availability (GA) version, a significant milestone for the project. It is now available in multiple formats: as an official Docker container, through Fedora/EPEL yum repositories, and as binary tarballs for both Ubuntu Bionic and Ubuntu Focal. This availability ensures straightforward installation on rpm-based systems, though […]