May 30, 2024

CCX for Cloud Service Providers is now generally available

We’re pleased to announce the general availability of CCX for Cloud Service Providers (CSPs), a cloud-native Database as a Service (DBaaS) designed to enable CSPs to enhance their services portfolio with a premium, out-of-the-box DBaaS....

August 16, 2023

10 Considerations for Architecting a Multi-Cloud Database

Thinking about architecting a multi-cloud database? It’s an increasingly common topology nowadays. The adoption rate of a multi-cloud approach has been growing fast for years. It’s a solid option for a disaster recovery plan (DRP)...

October 6, 2023

Best Practices for Scaling A Multi-Cloud Database Infrastructure

Scaling a multi-cloud database infrastructure can be a complex and challenging task, but it's essential for businesses that require high scalability, availability, and reliability. With multi-cloud becoming increasingly popular, organizations are leveraging the benefits of...

December 8, 2023

What’s new in SQL Server 2022

SQL Server 2022 is the latest database version released by Microsoft in November 2022. The release builds upon previous versions to add more choice for SQL Server users when it comes to development languages, data...

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January 6, 2014

Deploying an Active-Active FreeRadius Cluster with MySQL NDB or Galera

MySQL Cluster is a popular backend for FreeRADIUS, as it provides a scalable backend to store user and accounting data. However, there are situations when the backend database becomes a centralized datastore for additional applications...

December 10, 2013

Online Schema Upgrade in MySQL Galera Cluster using TOI Method

As a follow-up to the Webinar on Zero Downtime Schema Changes in Galera Cluster, we’ll now walk you through the detailed steps on how to update your schema. The two methods (TOI and RSU) have both...

December 5, 2013

Webinar Replay: Galera Cluster Best Practices – Zero Downtime Schema Changes

Thanks to everyone who attended yesterday’s webinar; if you missed the sessions or would like to watch the webinar again & browse through the slides, they are now available online.          ...

November 25, 2013

OpenStack Metering: How to Install Ceilometer with MongoDB

  According to Wikipedia, a ceilometer is a device that uses a laser or other light source to determine the height of a cloud base. And it is also the name of the framework for...

November 19, 2013

ClusterControl 1.2.4 Released

The Severalnines team is pleased to announce the release of ClusterControl 1.2.4. This release contains key new features along with performance improvements and bug fixes. We have outlined some of the key features below. For...

October 28, 2013

Point-in-Time Recovery for MySQL Galera Cluster

**Update: 6th May, 2016 - This blog post has been updated to reflect ClusterControl v1.3.0 Data protection is vital for DB admins, especially when it involves data that is accessed and updated 24 hours a day....

October 23, 2013

Webinar Replay: Galera 3.0 Introduction and Cluster Management – with MySQL 5.6, Global Transaction IDs and WAN

The Severalnines & Codership teams came together to co-host two webinar sessions on Galera 3.0, MySQL 5.6, Global Transaction IDs and WAN. The sessions were held during EMEA/APAC as well as NA/LATAM timezones, which worked...

October 16, 2013

Understanding gcache in Galera

Galera uses a preallocated file with a specific size called gcache, used to store the writesets in circular buffer style. By default, its size is 128MB. In this post, we are going to explore how to leverage...

October 7, 2013

Installing a ClusterControl Standby Server

As you might already know, ClusterControl runs on a dedicated host. Failure of the ClusterControl host (or the datacenter it is running in) does not affect your running database cluster, however you cannot manage the cluster during...

October 1, 2013

Patch Updates and New Version Upgrades of Your Database Clusters

Database vendors regularly issue critical patch updates to address software bugs or known vulnerabilities, but for a variety of reasons, organizations are often unable to install them in a timely manner, if at all. Evidence...

September 17, 2013

Avoiding Deadlocks in Galera – Setting Up HAProxy for Single-Node Writes and Multi-Node Reads

Galera cluster has known limitations, one of them is that it uses cluster-wide optimistic locking. This may cause some transactions to rollback. With an increasing number of writeable masters, the transaction rollback rate may increase, especially...

September 12, 2013

Using BitTorrent Sync to Transfer Database Backups Offsite

BitTorrent Sync is a simple replication application providing encrypted bidirectional file transfers that can run behind NAT and is specifically designed to handle large files. By leveraging the simplicity of Bittorrent Sync, we can transfer...

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