Tag - MySQL Replication

The Multi-Source GTID Replication Maze

Multi-Source GTID Replication

In this blog post, we’ll look at how to navigate some of the complexities of multi-source GTID replication.
GTID replication is often a real challenge for DBAs, especially if this has to do with multi-source GTID replication. A while back, I came across a really interesting customer environment with shards where multi-master, multi-source, multi-threaded MySQL 5.6 […]

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Upcoming HA Webinar Wed 6/21: Percona XtraDB Cluster, Galera Cluster, MySQL Group Replication

High Availability

Join Percona’s MySQL Practice Manager Kenny Gryp and QA Engineer, Ramesh Sivaraman as they present a high availability webinar around Percona XtraDB Cluster, Galera Cluster, MySQL Group Replication on Wednesday, June 21, 2017 at 10:00 am PDT / 1:00 pm EDT (UTC-7).
Register Now

What are the implementation differences between Percona XtraDB Cluster 5.7, Galera Cluster 5.7 […]

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MySQL super_read_only Bugs

MySQL Error Code 1215

This blog we describe an issue with MySQL 5.7’s super_read_only feature when used alongside with GTID in chained slave instances.
Background
In MySQL 5.7.5 and onward introduced the gtid_executed table in the MySQL database to store every GTID. This allows slave instances to use the GTID feature regardless whether the binlog option is set or not. Here is […]

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MySQL replication primer with pt-table-checksum / pt-table-sync, part 2

pt-online-schema-change

This is the second and last tutorial blog post on how to use pt-table-checksum / pt-table-sync tools for MySQL replication.
In the first post, I showed you how to use the
pt-table-checksum  /
pt-table-sync  tools in a typical MySQL replication setup. In this post, we’ll discuss MySQL replication for more advanced topologies. I will show you how to […]

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Featured Talk: The Future of Replication is Today: New Features in Practice

In the past years, both MySQL 5.6, MySQL 5.7 and MariaDB 10 have been successful implementing new features. For many DBAs, the “old way” of replicating data is comfortable so taking the action to implement these new features seems like a momentous leap rather then a simple step. But perhaps it isn’t that complicated…
Giuseppe […]

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