Percona Server version 5.1.53-12.4 is now available for download. It is now the current stable release version. Functionality Added or Changed Â Percona ServerÂ 5.1.53-12.4 is based on MySQL 5.1.53. Â New Features Added: Precompiled UDFs for Maatkit (FNV and MurmurHash hash functions to provide faster checksums) are now included in distributions. Fixes feature request #689992. (Aleksandr Kuzminsky) […]
Percona Server version 5.1.53-11.7 is now available for download. The main purpose of this release is to update the current Percona stable release to the latest version of MySQL 5.1. Functionality Added or Changed Â Percona Server 5.1.53-11.7 is now based on MySQL 5.1.53. Â New Features Added: None Â Other Changes: None Bugs Fixed Bug #643149 – […]
XtraBackup works great for backing MySQL up to an NFS volume, but there is a gotcha that you need to be aware of. This applies to anything you do with NFS, not just XtraBackup. The gotcha is that NFS uses client-side caching to reduce overhead of sending data across the network.
Dear Community, Starting with this release, we introduce a new release model for Percona Server. From now on, we will have both Stable and Release Candidate releases. Release Candidates will introduce new features not yet available in Stable releases. Along with new features, our new 5.1.49-12.0 RC contains a couple of patches from the Facebook-MySQL […]
I wrote about FlashCache there, and since that I run couple benchmarks, to see what performance benefits we can expect. For initial tries I took sysbench oltp tests ( read-only and read-write) and case when data fully fits into L2 cache. I made binaries for FlashCache for CentOS 5.4, kernel 2.6.18-164.15, you can download it […]
The Percona team participated at this year’s O’Reilly MySQL Conference & Expo held April 12-15, 2010 in Santa Clara, California. We gave a lot of talks on…
Author: Peter Zaitsev, Justin Swanhart
MySQL Graphing and Trending with Cacti
Author: Baron Schwartz
Percona‘s Performance and Feature Enhancements to MySQL and InnoDB
Author: Bill Schuler, Baron Schwartz…a Bottleneck
Author: Morgan Tocker
XtraBackup Hot Backups and More
Author: Vadim Tkachenko, Morgan Tocker
You can also read more about this conference on Percona site.
As I mentioned in my talk An Overview of Flash Storage for Databases I see in the near and middle term future a lot of interest for using Flash storage in Level 2 caching level. The price-capacity trade-off makes Flash as the very good fit for a cache layer. Actually it is not the new […]
Many Percona employees will be at the 2010 MySQL conference. We’ll be giving a lot of informative technical talks on various topics. Here’s a list: Morgan Tocker, Baron Schwartz: Diagnosing and Fixing MySQL Performance Problems Peter Zaitsev: Scaling Applications with Caching, Sharding and Replication Baron Schwartz: EXPLAIN Demystified Vadim Tkachenko: An Overview of Flash Storage […]
So during preparation of XtraDB template for EC2 I wanted to understand what IO characteristics we can expect from EBS volume ( I am speaking about single volume, not RAID as in my previous post). Yasufumi did some benchmarks and pointed me on interesting behavior, there seems several level of caching on EBS volume.
We announce next version of our xtrabackup tool and we consider it stable enough to put label RC on it. Changelist includes: – use O_DIRECT by default for handling InnoDB files – use posix fadvise call to disable OS caching of copying files – disable recovery of double buffer Also we added binary builds for […]