October 22, 2014

Benchmarking Percona Server TokuDB vs InnoDB

After compiling Percona Server with TokuDB, of course I wanted to compare InnoDB performance vs TokuDB. I have a particular workload I’m interested in testing – it is an insert-intensive workload (which is TokuDB’s strong suit) with some roll-up aggregation, which should produce updates in-place (I will use INSERT .. ON DUPLICATE KEY UPDATE statements […]

Percona Server 5.5.30 with TokuDB for MySQL

I was excited to see that TokuDB for MySQL from Tokutek is now open source. I believe this is a great technology and it was a significant restriction on the adoption when it was distributed only in a binary format with a proprietary license. So I went and built Percona Server 5.5.30 with TokuDB’s storage […]

Solving RPM installation conflicts in CentOS 5 and CentOS 6

Lately we’ve had many reports of the RPM packages for CentOS 5 (mostly) and CentOS 6 having issues when installing different combinations of our products, particularly with Percona Toolkit for MySQL. Examples of bugs related to these issues are lp:1031427 and lp:1051874. These problems arise when trying to install a package from the distribution that […]

Using MySQL Sandbox with Percona Server

One of the most useful tools if you’re working with multiple versions of MySQL Servers is MySQL Sandbox which allows you to maintain many different versions of MySQL, Percona Server, MariaDB. If you’re just working with single sandbox you can just use MySQL Sandbox in its most basic way and it will work:

However […]

How to start a Percona XtraDB Cluster

Before version 5.5.28 of Percona XtraDB Cluster, the easiest way was to join the cluster using wsrep_urls in [mysqld_safe] section of my.cnf. So with a cluster of 3 nodes like this : node1 = 192.168.1.1 node2 = 192.168.1.2 node3 = 192.168.1.3 we defined the setting like this :

With that line above in my.cnf […]

How to obtain the “LES” (Last Executed Statement) from an Optimized Core Dump?

Ever ran into a situation where you saw “some important variable you really needed to know about=<optimized out>” while debugging?

Percona testing: Quick test clusters with kewpie!

The announcement of Percona XtraDB Cluster seems to have generated a fair bit of interest : ) Although the documentation contains more formal instructions for setting up a test cluster, I wanted to share a quick way to set up an ad-hoc cluster on a single machine to help people play with this (imho) rather […]

Connecting orphaned .ibd files

There are two ways InnoDB can organize tablespaces. First is when all data, indexes and system buffers are stored in a single tablespace. This is typicaly one or several ibdata files. A well known innodb_file_per_table option brings the second one. Tables and system areas are split into different files. Usually system tablespace is located in […]

Shard-Query EC2 images available

Infobright and InnoDB AMI images are now available There are now demonstration AMI images for Shard-Query. Each image comes pre-loaded with the data used in the previous Shard-Query blog post. The data in the each image is split into 20 “shards”. This blog post will refer to an EC2 instances as a node from here […]

Percona Server 5.1.50-rel11.4

Dear Community, Percona Server version 5.1.50-rel11.4 is now available for download. The changes in this release include: New features The primary purpose of this release is to update to the latest version of MySQL 5.1. Percona Server 5.1.50-rel11.4 is now based on MySQL 5.1.50. Fixed bugs innodb_use_sys_stats_table – The

table is now used only […]