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.
Percona Server 5.1.49-rel12.0
September 15, 2010 By 6 Comments
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 [...]
FlashCache: first experiments
May 10, 2010 By 18 Comments
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 [...]
Presentations Announcement: 2010 O’Reilly MySQL Conference & Expo
April 29, 2010 By 4 Comments
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.
Level 2 Flash cache is there
April 27, 2010 By 5 Comments
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 [...]
Percona sessions at the MySQL conference
March 15, 2010 By 6 Comments
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 [...]
Great work Innodb Team
November 30, 2009 By 8 Comments
I thought I should praise Innodb team for all the work they have been doing recently. We see a lot of cool stuff happening, especially in the area of our interest which is Performance And Scalability. Innodb Plugin 1.0.4 had a lot of great performance improvements and 1.0.5/1.0.6 gets even further with long standing caching [...]
Dissection of EC2 / EBS volume
August 7, 2009 By 4 Comments
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.
Few more ideas for InnoDB features
June 29, 2009 By 7 Comments
As you see MySQL is doing great in InnoDB performance improvements, so we decided to concentrate more on additional InnoDB features, which will make difference. Beside ideas I put before http://www.mysqlperformanceblog.com/2009/03/30/my-hot-list-for-next-innodb-features/ (and one of them – moving InnoDB tables between servers are currently under development), we have few mores: – Stick some InnoDB tables / [...]
xtrabackup-0.7 (RC)
May 21, 2009 By 4 Comments
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 [...]
