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Full Restore of a MySQL Galera Cluster from Backup
September 4, 2013 By Severalnines Performing regular backups of your database cluster is imperative for high availability and disaster recovery. If for any reason you lost your entire cluster and had...
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High Availability on a Shoestring Budget - Deploying a Minimal Two Node MySQL...
September 6, 2013 By Severalnines We regularly get questions about how to set up a Galera cluster with just 2 nodes. The documentation clearly states you should have at least 3 Galera nodes to avoid...
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From the Field - Live Migration from MMM to MariaDB Galera Cluster
September 10, 2013 By Igor Shevtsov This is a guest post from Igor Shevtsov, a MySQL DBA based in Twickenham, UK. Igor has had the opportunity to deploy and manage different types of high availability...
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Using BitTorrent Sync to Transfer Backups
September 12, 2013 By Severalnines BitTorrent Sync is a simple replication application providing encrypted bidirectional file transfers that can run behind NAT and is specifically designed to handle...
View ArticleAvoiding Deadlocks in Galera - Set up HAProxy for single-node writes and...
September 17, 2013 By Severalnines 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...
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Resources for HA Database Clusters: Latest Updates
September 24, 2013 By Severalnines For those of you who know Severalnines and maybe use some of our tools & products, you’ll know that we provide our users with a monthly summary of all the...
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Release Webinar - Introducing Galera 3.0: Now supporting MySQL 5.6, Global...
September 25, 2013 By Severalnines Join this technical webinar to learn about the new features in the latest Galera 3.0 release. You'll learn how Galera integrates with MySQL 5.6 and Global...
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Patch Updates and New Version Upgrades of your Database Clusters
October 1, 2013 By Severalnines Database vendors regularly issue critical patch updates to address software bugs or known vulnerabilities, but for a variety of reasons, organizations are often unable...
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Installing ClusterControl Standby Server
October 7, 2013 By Severalnines 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...
View ArticleUnderstanding gcache in Galera
October 16, 2013 By Severalnines 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,...
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Webinar Replay and Q&A: Galera 3.0 Introduction and Cluster Management - with...
October 23, 2013 By Severalnines Last week, 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...
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Point-in-time Recovery in MySQL Galera Cluster
October 28, 2013 By Severalnines Data protection is vital for DB admins, especially when it involves data that is accessed and updated 24 hours a day. Clustering and replication are techniques that...
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Severalnines at Percona Live London 2013: MySQL Cluster Performance Tuning,...
November 4, 2013 By Severalnines Percona Live London MySQL Conference - 11-12th November, 2013We’re particularly excited about this year’s Percona Live London MySQL Conference. The line-up of speakers...
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Upcoming Webinar: Zero Downtime Schema Changes in Galera Cluster
November 14, 2013 By Severalnines Database schema changes are usually not popular among DBAs or sysadmins, not when you are operating a cluster and cannot afford to switch off the service during a...
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ClusterControl 1.2.4 Released
November 19, 2013 By Severalnines 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...
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OpenStack Metering: How to Install Ceilometer with MongoDB
November 25, 2013 By Severalnines 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...
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High-Availability Openstack on a shoestring budget: Deploying a Minimal...
December 4, 2013 By Severalnines As OpenStack deployments mature from evaluation/development to production environments supporting apps and services, high-availability becomes a key requirement. In a...
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Webinar Replay & Slides: Galera Cluster Best Practices - Zero Downtime Schema...
December 5, 2013 By Severalnines 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...
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Online Schema Upgrade in MySQL Galera Cluster using TOI Method
December 10, 2013 By Severalnines 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...
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