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September 8, 2021

ClusterControl supports Redis with version 1.9

If you are a frequent user of ClusterControl, you might have heard that the Severalnines team recently released ClusterControl version 1.9.0. The full changelog can be found here, but in this blog post, we are...

September 7, 2021

Your DBA is Absent: What Do You Do?

If you are running a company, chances are that you already have a lot of things to take care of - you need to hire developers, designers, perhaps a couple of security experts, as well...

September 3, 2021

What’s the Use of Developer Studio in ClusterControl?

If you are a frequent user of Severalnines’ products, you have probably heard of one of its flagship products - ClusterControl. And since you have probably heard of ClusterControl, you have probably heard of at...

August 24, 2021

Benchmarking databases 101 – part 1

Benchmarks are one of the activities that database administrators perform. You run them to see how your hardware behaves, you run them to see how your application and database work together under pressure. You run...

August 16, 2021

ClusterControl: Intro to the New Query Monitor

ClusterControl 1.9.0 was released on July 16th 2021 with a lot of new features introduced to the system. Those features include Redis Management and Monitoring, a new agent-based Query Monitoring system for MySQL and PostgreSQL,...

July 30, 2021

How to Choose a Key-value Store

A key-value database is a type of non-relational database that uses a simple key-value method to store data. A key-value database stores data as a collection of key-value pairs in which a key serves as...

July 26, 2021

Performance Tuning for Redis

In any database setup, performance is always a challenge and is most of the time database administrators and developers always deals with especially for a production and large environment. It's worth noting that a simple...

July 23, 2021

Digging Deeper into ClusterControl’s Performance Advisors

If you are a frequent reader of the Severalnines’ database blog, you have probably noticed that Severalnines’ crew talks about performance of databases pretty frequently. Part of that is because of ClusterControl - the flagship...

July 15, 2021

How to Configure PostgreSQL Sharding with ClusterControl

Sometimes it is hard to manage a large amount of data in a company, especially with the exponential increment of Data Analytics and IoT usage. Depending on the size, this amount of data could affect...

July 9, 2021

Importance of Append-only File in Redis

While looking around Redis data directory you may have noticed several files, among them a file with .aof extension.  root@vagrant:~# ls -alh /var/lib/redis/ total 54M drwxr-x--- 2 redis redis 4.0K Jul 1 10:40 . drwxr-xr-x...

July 7, 2021

Hash Slot Resharding and Rebalancing for Redis Cluster

Redis Cluster with automatic partitioning uses a cool approach in organizing and storing the data, where the keys are stored in a hash slot and the keyspace is split into 16384 slots. Each master node...

July 1, 2021

Hash Slot vs. Consistent Hashing in Redis

About Hash Slots in Redis Cluster Hash slot in Redis was introduced when the Redis Cluster was released in its version 3.0, more than 6 years ago. In fact, the Redis Cluster was taking too...

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