We recently released XtraDB-9, and while we did not highlight it in announcement, the release-making feature is ability to save and restore InnoDB buffer pool. The idea is not new and was originally developed by Jeremy Cole (sorry, I do not have the link on hands) some time ago, and now we implemented it in [...]
InnoDB, InnoDB-plugin vs XtraDB on fast storage
January 13, 2010 By 13 Comments
To continue fun with FusionIO cards, I wanted to check how MySQL / InnoDB performs here. For benchmark I took MySQL 5.1.42 with built-in InnoDB, InnoDB-plugin 1.0.6, and XtraDB 1.0.6-9 ( InnoDB with Percona patches). As benchmark engine I used tpcc-mysql with 1000 warehouses ( which gives around 90GB of data + indexes) on my [...]
Paul McCullagh answers your questions about PBXT
November 20, 2009 By 2 Comments
Following on from our earlier announcement, Paul McCullagh has responded with the answers to your questions – as well as a few I gathered from other Percona folks, and attendees of OpenSQL Camp. Thank you Paul! What’s the “ideal” use case for the PBXT engine, and how does it compare in performance?  When would I [...]
InnoDB: look after fragmentation
November 5, 2009 By 12 Comments
One problem made me puzzled for couple hours, but it was really interesting to figure out what’s going on. So let me introduce problem at first. The table is
1 2 3 4 5 6 7 8 | CREATE TABLE `c` ( `tracker_id` int(10) unsigned NOT NULL, `username` char(20) character set latin1 collate latin1_bin NOT NULL, `time_id` date NOT NULL, `block_id` int(10) unsigned default NULL, PRIMARY KEY (`tracker_id`,`username`,`time_id`), KEY `block_id` (`block_id`) ) ENGINE=InnoDB |
Table has 11864696 rows and takes Data_length: 698,351,616 bytes on disk The problem is that after restoring table from mysqldump, the query that scans data [...]
Speaking at the LA MySQL Meetup – 18th November
November 1, 2009 By Leave a Comment
A recent photo from Highload.ru I said in my last post, that we’re interested in speaking at MySQL meetups, and I’m happy to say that the Los Angeles MySQL Meetup has taken us up on the offer. On November 18th, I’ll be giving an introductory talk on InnoDB/XtraDB Performance Optimization. I will be the second [...]
State of the art: Galera – synchronous replication for InnoDB
October 27, 2009 By 15 Comments
First time I heard about Galera on Percona Performance Conference 2009, Seppo Jaakola was presenting “Galera: Multi-Master Synchronous MySQL Replication Clusters”. It was impressed as I personally always wanted it for InnoDB, but we had it in plans at the bottom of the list, as this is very hard to implement properly. The idea by [...]
XtraDB Amazon Image
October 25, 2009 By 9 Comments
For those who use Amazon EC2 service and were anxious about having XtraDB ready to launch there is a good news. We created a public AMI (Amazon Machine Image) with XtraDB release 8 installed on CentOS 5.3. How to use it. First make sure it is avaiable.
1 2 3 | $ ec2-describe-images ami-4701e22e IMAGE  ami-4701e22e   xtradb/centos-5.3-x86_64.fs.manifest.xml       834362721059   available      public         x86_64 machine $ |
Run it. It is built for x86_64 [...]
MySQL-Memcached or NOSQL Tokyo Tyrant – part 3
October 19, 2009 By 25 Comments
This is part 3 of our series. In part 1 we talked about boosting performance with memcached on top of MySQL, in Part 2 we talked about running 100% outside the data with memcached, and now in Part 3 we are going to look at a possible solution to free you from the database. The [...]
Tuning for heavy writing workloads
October 14, 2009 By 9 Comments
For the my previous post, there was comment to suggest to test db_STRESS benchmark on XtraDB by Dimitri. And I tested and tuned for the benchmark. I will show you the tunings. It should be also tuning procedure for general heavy writing workloads. At first, <tuning peak performance>. The next, <tuning purge operation> to stabilize [...]
InnoDB/XtraDB Training in New York City!
September 25, 2009 By 2 Comments
Our Santa Clara/San Francisco training went great – 100% of survey respondents said they would recommend the same course to a friend. I’m pleased to announce that such an opportunity exists – our next training location will be New York City on October 30, 2009. We’ve booked a training venue in the financial district of [...]
