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High Availability with MySQL Fabric: Part II

and  | May 30, 2014 |  Posted In: High-availability, Insight for DBAs, MySQL

This is the third post in our MySQL Fabric series. If you missed the previous two, we started with an overall introduction, and then a discussion of MySQL Fabric’s high-availability (HA) features. MySQL Fabric was RC when we started this series, but it went GA recently. You can read the press release here, and see this blog post from Oracle’s Mats […]

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How MySQL ‘queries’ and ‘questions’ are measured

 | May 29, 2014 |  Posted In: Insight for DBAs, MySQL

MySQL has status variables “questions” and “queries” which are rather close but also a bit different, making it confusing for many people. The manual describing it might not be very easy to understand:

In a nutshell if you’re not using prepared statements the big difference between those is what “Questions” would count stored procedure calls as […]

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From zero to full visibility of MySQL in 3 minutes with Percona Cloud Tools

 | May 28, 2014 |  Posted In: Insight for DBAs, MySQL, Percona Cloud Tools, Percona Software

First, I would like to invite you to my webinar, “Monitoring All (Yes, All!) MySQL Metrics with Percona Cloud Tools,” on Wednesday, June 25 at 10 a.m. Pacific Daylight Time, where I will talk on the new features in Percona Cloud Tools, including monitoring capabilities. In this post I’d like to show the cool and […]

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Semi-Sync replication performance in MySQL 5.7.4 DMR

 | May 27, 2014 |  Posted In: MySQL, Percona XtraDB Cluster, XtraDB Cluster

I was interested to hear about semi-sync replication improvements in MySQL’s 5.7.4 DMR release and decided to check it out.  I previously blogged about poor semi-sync performance and was pretty disappointed from semi-sync’s performance across WAN distances back then, particularly with many client threads. The Test The basic environment of these tests was: AWS EC2 […]

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Introducing the 3-Minute MySQL Monitor

 | May 23, 2014 |  Posted In: Insight for DBAs, MySQL, Percona Cloud Tools

There are many cool, new things happening with Percona Cloud Tools.  To avoid “tl;dr” I will highlight only one new feature after a brief, general announcement.  The new feature is a 3-minute MySQL monitor.  I’ll blog later about other features. The general announcement is: Last week we quietly released a brand-new agent called percona-agent, and we added MySQL and […]

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How to improve InnoDB performance by 55% for write-bound loads

 | May 23, 2014 |  Posted In: Benchmarks, Hardware and Storage, Insight for DBAs, MySQL, Percona Live

During April’s Percona Live MySQL Conference and Expo 2014, I attended a talk on MySQL 5.7 performance an scalability given by Dimitri Kravtchuk, the Oracle MySQL benchmark specialist. He mentioned at some point that the InnoDB double write buffer was a real performance killer. For the ones that don’t know what the innodb double write […]

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TokuMX Compared to MongoDB Using a Specific Common Use Case

 | May 22, 2014 |  Posted In: Tokutek, TokuView

Former AOL chief database architect, now independent database consultant, John Schulz guest blogs about his experience with basic MongoDB (from MongoDB, Inc.) and TokuMX™.  If you’d like to speak with John about your own big data challenges you can contact him via email at john_schulz at aol dot com. Before leaving AOL to start my […]

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