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May 14, 2014
max_allowed_packet and binary log corruption in MySQL
Replication Constraint The combination of max_allowed_packet variable and replication in MySQL is a common source of headaches. In a nutshell, [...]
May 12, 2014
Practical MySQL performance optimization: May 14 Webinar
Achieving the best possible MySQL Performance doesn’t have to be complicated. It’s all about knowing which tools are designed for [...]
May 9, 2014
GTIDs in MySQL 5.6: New replication protocol; new ways to break replication
One of the MySQL 5.6 features many people are interested in is Global Transactions IDs (GTIDs). This is for a [...]
May 7, 2014
MySQL Audit Plugin now available in Percona Server 5.5 and 5.6
The new Percona Server 5.5.37-35.0 and Percona Server 5.6.17-65.0-56, announced yesterday (May 6), both include the open source version of the [...]
May 5, 2014
The top 9 Percona Toolkit tools that can make your job easier: May 7 Webinar
Tools for MySQL are a vital part of any deployment, so it’s important to use ones that are reliable and [...]
May 2, 2014
How to identify and cure MySQL replication slave lag
Here on the Percona MySQL Support team, we often see issues where a customer is complaining about replication delays – [...]
May 1, 2014
Parallel Query for MySQL with Shard-Query
While Shard-Query can work over multiple nodes, this blog post focuses on using Shard-Query with a single node. Shard-Query can [...]
April 29, 2014
ScaleArc: Real-world application testing with WordPress (benchmark test)
ScaleArc recently hired Percona to perform various tests on its database traffic management product. This post is the outcome of [...]
April 28, 2014
OOM relation to vm.swappiness=0 in new kernel
I have recently been involved in diagnosing the reasons behind OOM invocation that would kill the MySQL server process. Of [...]
April 25, 2014
Managing farms of MySQL servers with MySQL Fabric
While built-in replication has been a major cause for MySQL’s wide adoption, official tools to help DBAs manage replication topologies [...]
April 17, 2014
How to find bugs in MySQL
Finding bugs in MySQL is not only fun, it’s also something I have been doing the last four years of [...]
April 16, 2014
‘Open Source Appreciation Day’ draws OpenStack, MySQL and CentOS faithful
To kick off the Percona Live MySQL Conference & Expo 2014, Percona held the first “Open Source Appreciation Day” on [...]
April 9, 2014
Heartbleed: Separating FAQ From FUD
If you’ve been following this blog (my colleague, David Busby, posted about it yesterday) or any tech news outlet in [...]
April 8, 2014
OpenSSL heartbleed CVE-2014-0160 – Data leaks make my heart bleed
The heartbleed bug was introduced in OpenSSL 1.0.1 and is present in 1.0.1 1.0.1a 1.0.1b 1.0.1c 1.0.1d 1.0.1e 1.0.1f The [...]
April 7, 2014
Optimizing MySQL Performance: Choosing the Right Tool for the Job
Next Wednesday, I will present a webinar about MySQL performance profiling tools that every MySQL DBA should know. Application performance is [...]
April 4, 2014
Facebook’s Yoshinori Matsunobu on MySQL, WebScaleSQL & Percona Live
I spoke with Facebook database engineer Yoshinori Matsunobu here at Percona Live 2014 today about a range of topics, including MySQL [...]
April 1, 2014
How to add an existing Percona XtraDB Cluster to Percona ClusterControl
In my last blog post I explained how to use Percona ClusterControl to create a new Percona XtraDB Cluster from [...]
March 31, 2014
ScaleArc: Benchmarking with sysbench
ScaleArc recently hired Percona to perform various tests on its database traffic management product. This post is the outcome of [...]
March 28, 2014
Innodb redo log archiving
Percona Server 5.6.11-60.3 introduces a new “log archiving” feature. Percona XtraBackup 2.1.5 supports “apply archived logs.” What does it mean [...]