Percona MySQL University in Montevideo and Buenos Aires
Following our Percona MySQL University event in Raleigh,NC Percona MySQL University comes to South America! We’ll have a Full day FREE MySQL Technical Educational events in Montevideo on February 5th,...
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Percona MySQL University comes to Toronto on March 22
Percona CEO Peter Zaitsev leads a track at the inaugural Percona MySQL University event in Raleigh, N.C. on Jan. 29, 2013.Following our events in Raleigh, Montevideo, Buenos Aires, Percona MySQL...
View ArticleHow to log slow queries on Slave in MySQL 5.0 with pt-query-digest
Working as a Percona Support Engineer, every day we are seeing lots of issues related to MySQL replication. One very common issue is slave lagging. There are many reasons for slave lag but one common...
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Monitoring MySQL flow control in Percona XtraDB Cluster 5.6
Monitoring flow control in a Galera cluster is very important. If you do not, you will not understand why writes may sometimes be stalled. Percona XtraDB Cluster 5.6 provides 2 status variables for...
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MySQL Replication: ‘Got fatal error 1236′ causes and cures
MySQL replication is a core process for maintaining multiple copies of data – and replication is a very important aspect in database administration. In order to synchronize data between master and...
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5 free handy tools for monitoring and managing MySQL replication
MySQL Replication is very simple to set up. In this post I’ll discuss its importance and five handy tools for monitoring and managing MySQL replication.What is MySQL Replication? It’s the process of...
View ArticleMySQL replication primer with pt-table-checksum and pt-table-sync
MySQL replication is a process that allows you to easily maintain multiple copies of MySQL data by having them copied automatically from a master to a slave database.It’s essential to make sure the...
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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...
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MySQL replication primer with pt-table-checksum / pt-table-sync, part 2
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 /...
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MySQL super_read_only Bugs
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...
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Upcoming HA Webinar Wed 6/21: Percona XtraDB Cluster, Galera Cluster, MySQL...
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...
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The Multi-Source GTID Replication Maze
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...
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Working of MySQL Replication Filters When Using Statement-based and Row-based...
A couple of days ago I was creating an index on the source and when I checked the replica side it was not replicated, so I just wanted to explain how the replication filter may increase the complexity...
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Fixing Errant GTID With Orchestrator: The Easy Way Out
In this article, we will discuss errant Transaction /GTID and how we can solve them with the Orchestrator tool. Orchestrator is a MySQL high availability and replication management tool that runs as a...
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Understanding Basic Flow Control Activity in MySQL Group Replication: Part One
Flow control is not a new term, and we have already heard it a lot of times in Percona XtraDB Cluster/Galera-based environments. In very simple terms, it means the cluster node can’t keep up with the...
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