Once upon a time, it would have been considered madness to even attempt to create 30,000 tables in InnoDB. That time is now a memory. We have customers with a lot more tables than a mere 30,000. There have historically been no tests for anything near this many tables in the MySQL test suite. So, [...]
Percona Training: Dublin, San Diego, NYC, and WDC
October 31, 2011 By Leave a Comment
If you have been waiting for Percona’s highly rated MySQL courses to be taught near you, your wait is over. We will be holding our Developer, DBA, InnoDB, and Operations training in the following cities: Dublin, Ireland – December 5 – 8, 2011 San Diego, CA – December 12 – 15, 2011 New York, NY [...]
Optimizing slow web pages with mk-query-digest
April 7, 2011 By 14 Comments
I don’t use many tools in my consulting practice but for the ones I do, I try to know them as best as I can. I’ve been using mk-query-digest for almost as long as it exists but it continues to surprise me in ways I couldn’t imagine it would. This time I’d like to share [...]
Where does HandlerSocket really save you time?
March 16, 2011 By Leave a Comment
HandlerSocket has really generated a lot of interest because of the dual promises of ease-of-use and blazing-fast performance. The performance comes from eliminating CPU consumption. Akira Higuchi’s HandlerSocket presentation from a couple of months back had some really good profile results for libmysql versus libhsclient (starting at slide 15). Somebody in the audience at Percona [...]
Upcoming Webinar on HandlerSocket
March 14, 2011 By Leave a Comment
On March 29th, I’ll be giving a webinar whose title is “Understanding HandlerSocket – A NoSQL PlugIn For MySQLâ€. This is a continuation and extension of the talk I gave during the Percona Live Event in San Francisco back in February. We’ll ask, and answer, the following questions: What is HandlerSocket? Where does HandlerSocket fit [...]
Announcing Percona Live: San Francisco February 16th
January 5, 2011 By 1 Comment
Today we’re announcing Percona Live – a one day event to be held at the Bently Reserve on February 16th in San Francisco. Live is our way of showcasing some of the awesome work that has been going into MySQL recently – and the theme of this event is Beyond MySQL 5.1. Our first guest [...]
Sharing an auto_increment value across multiple MySQL tables (revisited)
October 26, 2010 By 7 Comments
A couple of weeks ago I blogged about Sharing an auto_increment value across multiple MySQL tables. In the comments, a few people wrote in to suggest alternative ways of implementing this. I just got around to benchmarking those alternatives today across two large EC2 machines:
Sharing an auto_increment value across multiple MySQL tables
October 4, 2010 By 9 Comments
The title is SEO bait – you can’t do it. We’ve seen a few recurring patterns trying to achieve similar – and I thought I would share with you my favorite two: Option #1: Use a table to insert into, and grab the insert_id: CREATE TABLE option1 (id int not null primary key auto_increment) engine=innodb; [...]
Joining on range? Wrong!
May 17, 2010 By 10 Comments
The problem I am going to describe is likely to be around since the very beginning of MySQL, however unless you carefully analyse and profile your queries, it might easily go unnoticed. I used it as one of the examples in our talk given at phpDay.it conference last week to demonstrate some pitfalls one may [...]
mk-query-digest, query comments and the query cache
I very much like the fact that MySQL allows you to embed comments into SQL statements. These comments are extremely convenient, because they are written into MySQL log files as part of the query. This includes the general log, the binary log and the slow query log. Maatkit includes tools which interact with these logs, [...]