Clik here to view.
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 – and many times the problem ends up being tied to MySQL replication slave lag. This...
View Articlemydumper [less] locking
In this post I would like to review how my dumper for MySQL works from the point of view of locks. Since 0.6 serie we have different options, so I will try to explain how they workAs you may know...
View ArticleGetting to know TokuDB for MySQL
During last April’s Percona Live MySQL Conference and Expo, TokuDB celebrated it’s first full-year as an open source storage engine. I still remember reading the official announcement and the...
View ArticleWhen (and how) to move an InnoDB table outside the shared tablespace
In my last post, “A closer look at the MySQL ibdata1 disk space issue and big tables,” I looked at the growing ibdata1 problem under the perspective of having big tables residing inside the so-called...
View ArticleUseful MySQL 5.6 features you get for free in PXC 5.6
I get a lot of questions about Percona XtraDB Cluster 5.6 (PXC 5.6), specifically about whether such and such MySQL 5.6 Community Edition feature is in PXC 5.6. The short answer is: yes, all features...
View ArticleThe ARCHIVE Storage Engine – does it do what you expect?
Sometimes there is a need for keeping large amounts of old, rarely used data without investing too much on expensive storage. Very often such data doesn’t need to be updated anymore, or the intent is...
View ArticleClik here to view.
Followup questions to ‘What’s new in Percona XtraDB Cluster 5.6′ webinar
Thanks to all who attended my webinar yesterday. The slides and recording are available on the webinar’s page. I was a bit overwhelmed with the amount of questions that came in and I’ll try to answer...
View ArticleClik here to view.
The MySQL ARCHIVE storage engine – Alternatives
In my previous post I pointed out that the existing ARCHIVE storage engine in MySQL may not be the one that will satisfy your needs when it comes to effectively storing large and/or old data. But are...
View ArticleClik here to view.
Q&A: Common (but deadly) MySQL Development Mistakes
On Wednesday I gave a presentation on “How to Avoid Common (but Deadly) MySQL Development Mistakes” for Percona MySQL Webinars. If you missed it, you can still register to view the recording and my...
View ArticleIntroducing backup locks in Percona Server
TL;DR version: The backup locks feature introduced in Percona Server 5.6.16-64.0 is a lightweight alternative to FLUSH TABLES WITH READ LOCK and can be used to take both physical and logical backups...
View ArticleClik here to view.
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 – and many times the problem ends up being tied to MySQL replication slave lag. This...
View Articlemydumper [less] locking
In this post I would like to review how my dumper for MySQL works from the point of view of locks. Since 0.6 serie we have different options, so I will try to explain how they workAs you may know...
View ArticleGetting to know TokuDB for MySQL
During last April’s Percona Live MySQL Conference and Expo, TokuDB celebrated it’s first full-year as an open source storage engine. I still remember reading the official announcement and the...
View ArticleWhen (and how) to move an InnoDB table outside the shared tablespace
In my last post, “A closer look at the MySQL ibdata1 disk space issue and big tables,” I looked at the growing ibdata1 problem under the perspective of having big tables residing inside the so-called...
View ArticleClik here to view.
MySQL 5.6 Full Text Search Throwdown: Webinar Q&A
Yesterday (Oct. 22) I gave a presentation titled “MySQL 5.6 Full Text Search Throwdown.” If you missed it, you can still register to view the recording and my slides.Thanks to everyone who attended,...
View ArticleClik here to view.
Optimizing MySQL for Zabbix
This blog post was inspired by my visit at the annual Zabbix Conference in Riga, Latvia this year, where I gave a couple of talks on MySQL and beyond.It was a two day single-track event with some 200...
View ArticleClik here to view.
Recover MySQL root password without restarting MySQL (no downtime!)
Disclaimer: Do this at your own risk! It doesn’t apply if you’re using Pluggable authentication and certainly won’t be usable if/when MySQL system tables are stored on InnoDBRecover your root password...
View ArticleClik here to view.
Looking deeper into InnoDB’s problem with many row versions
A few days ago I wrote about MySQL performance implications of InnoDB isolation modes and I touched briefly upon the bizarre performance regression I found with InnoDB handling a large amount of...
View ArticleHow to setup a PXC cluster with GTIDs (and have async slaves replicating from...
This past week was marked by a series of personal findings related to the use of Global Transaction IDs (GTIDs) on Galera-based clusters such as Percona XtraDB Cluster (PXC). The main one being the...
View ArticleIntroducing backup locks in Percona Server
TL;DR version: The backup locks feature introduced in Percona Server 5.6.16-64.0 is a lightweight alternative to FLUSH TABLES WITH READ LOCK and can be used to take both physical and logical backups...
View Article