EmergencyEMERGENCY? Get 24/7 Help Now!

MaxScale: A new tool to solve your MySQL scalability problems

 | June 8, 2015 |  Posted In: High-availability, MySQL, Percona XtraDB Cluster, XtraDB Cluster

Ever since MySQL replication has existed, people have dreamed of a good solution to automatically split read from write operations, sending the writes to the MySQL master and load balancing the reads over a set of MySQL slaves. While if at first it seems easy to solve, the reality is far more complex. First, the […]

Read More

Optimizing Percona XtraDB Cluster for write hotspots

 | June 3, 2015 |  Posted In: InnoDB, Insight for DBAs, MySQL, Percona XtraDB Cluster

Some applications have a heavy write workload on a few records – for instance when incrementing a global counter: this is called a write hotspot. Because you cannot update the same row simultaneously from multiple threads, this can lead to performance degradation. When using Percona XtraDB Cluster (PXC), some users try to solve this specific […]

Read More

New PERFORMANCE_SCHEMA defaults in MySQL 5.7.7

 | June 1, 2015 |  Posted In: EXPLAIN, MySQL

I thought it was worth a moment to reiterate on the new Performance Schema related defaults that MySQL 5.7.7 brings to the table, for various reasons. For one, most of you might have noticed that profiling was marked as deprecated in MySQL 5.6.7. So it is expected that you invest into learning more about Performance […]

Read More

MySQL 5.7 key features

 | May 27, 2015 |  Posted In: InnoDB, MySQL, Percona MySQL Support

The other day I was discussing new features of MySQL 5.7 with a Percona Support customer. After that conversation, I thought it would be a good idea to compile list of important features of MySQL 5.7. The latest MySQL 5.7.6 release candidate (RC) is out and is packed with nice features. Here’s a list of […]

Read More

MySQL QA Episode 2: Build a MySQL server – Git, Bazaar, Compiling & Build tools

 | May 15, 2015 |  Posted In: Insight for Developers, MySQL, Percona MySQL Training, Percona Server for MySQL, Quality Assurance

Welcome to MySQL QA Episode 2: Build a MySQL Server – Git, Bazaar (bzr), Compiling, and Build Tools In this episode you’ll learn how to build Percona Server and/or MySQL Server for QA purposes & more in this short 25 minute tutorial. In HD quality (set your player to 720p!) To watch the other episodes […]

Read More

Keep your MySQL data in sync when using Tungsten Replicator

 | May 4, 2015 |  Posted In: Insight for DBAs, MariaDB, MySQL, MySQL 101

MySQL replication isn’t perfect and sometimes our data gets out of sync, either by a failure in replication or human intervention. We are all familiar with Percona Toolkit’s pt-table-checksum and pt-table-sync to help us check and fix data inconsistencies – but imagine the following scenario where we mix regular replication with the Tungsten Replicator: We […]

Read More