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Q&A: Even More Deadly Mistakes of MySQL Development
On Wednesday I gave a presentation on “How to Avoid Even More Common (but Deadly) MySQL Development Mistakes” for Percona MySQL Webinars. If you missed it, you can still register to view the recording...
View ArticleWhat I learned while migrating a customer MySQL installation to Amazon RDS
Hi, I recently had the experience of assisting with a migration of a customer MySQL installation to Amazon RDS (Relational Database Service). Amazon RDS is a great platform for hosting your MySQL...
View ArticleA closer look at the MySQL ibdata1 disk space issue and big tables
A recurring and very common customer issue seen here at the Percona Support team involves how to make the ibdata1 file “shrink” within MySQL. I can only imagine there’s a degree of regret by some of...
View ArticleMulti-Valued INSERTs, AUTO_INCREMENT & Percona XtraDB Cluster
A common migration path from standalone MySQL/Percona Server to a Percona XtraDB Cluster (PXC) environment involves some measure of time where one node in the new cluster has been configured as a slave...
View ArticleMore then 1000 columns – get transactional with TokuDB
Recently I encountered a specific situation in which a customer was forced to stay with the MyISAM engine due to a legacy application using tables with over 1000 columns. Unfortunately InnoDB has a...
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MySQL & OpenStack: How to overcome issues as your dataset grows
MySQL is the database of choice for most OpenStack components (Ceilometer is a notable exception). If you start with a small deployment, it will probably run like a charm. But as soon as the dataset...
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Innodb transaction history often hides dangerous ‘debt’
In many write-intensive workloads Innodb/XtraDB storage engines you may see hidden and dangerous “debt” being accumulated – unpurged transaction “history” which if not kept in check over time will...
View ArticleHow to deal with MySQL deadlocks
A deadlock in MySQL happens when two or more transactions mutually hold and request for locks, creating a cycle of dependencies. In a transaction system, deadlocks are a fact of life and not completely...
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Streamlined Percona XtraDB Cluster (or anything) testing with Consul and Vagrant
Introducing ConsulI’m always interested in what Mitchell Hashimoto and Hashicorp are up to, I typically find their projects valuable. If you’ve heard of Vagrant, you know their work.I recently became...
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Store UUID in an optimized way
A few years ago Peter Zaitsev, in a post titled “To UUID or not to UUID,” wrote: “There is timestamp based part in UUID which has similar properties to auto_increment and which could be used to have...
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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 ArticleIdentifying useful info from MySQL row-based binary logs
As a MySQL DBA/consultant, it is part of my job to decode the MySQL binary logs – and there are a number of reasons for doing that. In this post, I’ll explain how you can get the important information...
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 ArticleIs MySQL’s innodb_file_per_table slowing you down?
MySQL’s innodb_file_per_table is a wonderful thing – most of the time. Having every table use its own .ibd file allows you to easily reclaim space when dropping or truncating tables. But in some use...
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3 handy tools to remove problematic MySQL processes
DBAs often encounter situations where they need to kill queries to ensure there are no long-running queries on a MySQL server that would impact performance. Long-running queries can be the result of...
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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...
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Deep dive into MySQL’s innochecksum tool
One of our Percona Support customers recently reported that Percona XtraBackup failed with a page corruption error on an InnoDB table. The customer thought it was a problem or bug in the Percona...
View ArticleHow to deal with MySQL deadlocks
A deadlock in MySQL happens when two or more transactions mutually hold and request for locks, creating a cycle of dependencies. In a transaction system, deadlocks are a fact of life and not completely...
View ArticleClik here to view.
Streamlined Percona XtraDB Cluster (or anything) testing with Consul and Vagrant
Introducing ConsulI’m always interested in what Mitchell Hashimoto and Hashicorp are up to, I typically find their projects valuable. If you’ve heard of Vagrant, you know their work.I recently became...
View ArticleClik here to view.
Store UUID in an optimized way
A few years ago Peter Zaitsev, in a post titled “To UUID or not to UUID,” wrote: “There is timestamp based part in UUID which has similar properties to auto_increment and which could be used to have...
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