SSL Connection Vulnerability of MySQL and MariaDB:

In the first blog of these series, we've done a rapid walkthrough on how to use Ansible and Vagrant to start a master/slave pair. In this second post, we will delve into the inner workings of Ansible, explaining how to set up server inventories, automate MariaDB deployments, use configuration templates and much more.

(The previous post, Better Parallel Replication for MySQL, is Part 1 of the series.) Parallel replication is a much expected feature of MySQL. It is already available in MariaDB 10.0 and in MySQL 5.7. In this post, a very nice side effect of the MariaDB implementation is presented: Slave Group Commit.

Upgrading a running MariaDB Galera Cluster from 5.5 (previous stable) to 10.0 (stable) is a question which comes up frequently with Remote DBA customers. Although a standard migration from 5.5 to 10.0 is well covered in the Knowledge Base, Galera Cluster upgrades haven’t been really documented in detail now. This howto will cover upgrades on CentOS or RHEL 6 but a similar logic can be applied to Ubuntu/Debian as well.

Learning MySQL and MariaDB, Monty Widenius, one of the founders of MySQL and MariaDB, graciously contributed a Foreword. It's about six pages long and an interesting read for those who are familiar with MySQL and MariaDB. Of particular interest to newcomers to MariaDB, is the excerpt in this article on his perspective of MariaDB and his vision for its future, as well as MySQL.

BootsMariaDB Galera Cluster is part of the easily deployed High Availability product MariaDB Enterprise Cluster. This blog raises a question about the behaviour of the bootstrapping method in MariaDB Galera Cluster.

Parallel replication is a much-expected feature of MySQL. It’s available in MariaDB 10.0 and in MySQL 5.7. Yet, both lose efficiency when replicating through intermediate masters. In this post, we’ll explain how parallel replication works and why it does not play well with intermediate masters. We’ll also offer a solution (hint: it involves Binlog Servers).

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A rapidly increasing number of large, high traffic sites are using MariaDB Galera for their database needs. This makes sense since it works so well. Administrators will connect asynchronous slaves to Galera for reporting, back-ups and disaster recovery.

MariaDB Galera is a very dependable system, involving the coupling of MariaDB with Galera. Nevertheless, Galera administrators need to check regularly the consistency of their slaves. An excellent tool for doing this is the pt-table-checksum. Read this blog for more about using it.

Database Backup LogoWhen developing database back-up and restoration plan, there are many things to consider. This article discusses a few of them.

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 The Percona Live MySQL Conference and Expo is coming up quickly and Team MariaDB is ready for another great event. This year our team has eight talks and tutorials and one Keynote:

Members of Team MariaDB have now all made it home from SCALE13X, held in LA. This year we had three talks. Max, talked about Advanced Query Routing and Proxying with MaxScale, and Sharding Your Data With Spider, while Colin Charles talks about MySQL in the Hosted Cloud. The talks will be available online shortly via the SCALE13X Website - we will tweet out links to our talks once they are posted.

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