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Howto: Online Upgrade of MariaDB Galera Cluster 5.5 to MariaDB 10

In this blog post, we’ll look into how to perform an online upgrade to MariaDB Galera Cluster 10. At the time of writing, MariaDB 10.1 was still in beta so the instructions in this blog are applicable to MariaDB 10.0. If you are running the Codership build of Galera (Galera Cluster for MySQL), you might be interested in the online upgrade to MySQL 5.6 instead.

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Howto: Online Upgrade of Galera Cluster to MySQL 5.6

Okay, this is a major upgrade so there are risks! Therefore, an upgrade must be carefully plan and tested. In this blog post, we’ll look into how to perform an online upgrade of your Galera Cluster (the Codership build of Galera) to MySQL 5.6. 

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Become a MySQL DBA blog series - Database upgrades

In this blog post, we will cover one of the most basic tasks of the DBA - minor and major database upgrades. This is the sixth installment in the ‘Become a MySQL DBA’ blog series. Our previous posts in the DBA series include Replication Topology Changes, Schema Changes, High Availability, Backup & Restore, Monitoring & Trending.

HowTo: Offline Upgrade of Galera Cluster to MySQL 5.6 or MariaDB 10

MySQL 5.6 has an extensive list of new features and changes, so upgrading from a previous version can be risky if not tested extensively. For this reason, we recommend our users to read and understand the changes before doing the upgrade. If you are on older MySQL versions, it is probably time to think about upgrading. MySQL 5.6 was released in February 2013, that’s almost two years ago!

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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 their pros and cons, and given parameters like table size, indexes, key_buffer_size, disk speed, etc., it is possible to estimate the time taken for the schema to be upgraded.

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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 suggests that companies are actually getting worse at patching databases, with an increased number violating compliance standards and governance policies.

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