… | 290 | | 6950 | 290 | +——+—–+ 10 rows in set (21.12 sec) mysql> select count(*) cnt from dt where slack like “a%”; +———+ | cnt… make much sense to me and I find it quite inconvenient whenever it is MySQL limitation or SQL Standard. This would be… is growing rapidly and use of MySQL for reporting quite expectedly starts to become the bottleneck. We use a lot of other…
Post: Using GROUP BY WITH ROLLUP for Reporting Performance Optimization
September 17, 2007 By 14 Comments
Comment: Adaptive flushing in MySQL 5.6 - cont
September 11, 2012 By 13 Comments
… tend to end up more interested in finding how close to fully utilising the most bottlenecking part of the system we can… interest today. You might find the discussion at http://blog.wl0.org/2012/04/initial-reactions-to-mysql-5-6/ of interest… official Oracle opinion seek out a PR person. James Day, MySQL Senior Principal Support Engineer, Oracle.
Comment: MySQL VIEW as performance troublemaker
August 13, 2007 By 57 Comments
I actually had previously utilized MySQL‘s VIEWs in a project when they had just came … find was that it was one of the worst performance bottlenecks as my data set grew. What I came to find was that MySQL…
Post: FaceBook Search, Search for social networks
August 12, 2007 By 4 Comments
… process. With Sphinx which talks directly to the MySQL database we can get some 10.000 of… it is not getting the documents which becomes bottleneck. Working with database instead of with web documents…text search. Such as finding the goods from the given group or Finding all Males looking for Females…
Comment: Why do you need many apache children ?
February 17, 2008 By 15 Comments
… in slow HTTP connection reaches to wait_timeout and MySQL aborts those mysql connections. There were about 200 Aborted_Clients per hour… search portal). Naver guru explained to me that the main bottleneck of web server only serving php scripts is CPU not… in China). In China, it is really hard to find guru on mysql, optimization because there are so many web sites cheating…
Post: Stored Function to generate Sequences
April 2, 2008 By 17 Comments
…have already seen it somewhere I did not find it with two minutes of googling so …or more sequences, which also can be helpful: mysql> select seq(‘one’),seq(‘two’),seq(‘one’),seq(‘one’); …short term but it may still become the bottleneck for application with high sequence use rate. For…
Post: Election night
November 5, 2008 By Leave a Comment
… enabling them to face the challenge: “Comprehensive MySQL Performance Audit”- to help you find the bottlenecks, to assist with architecture design and to prepare systems for approaching event. “Consultant Time Hire for MySQL“- to…
Comment: T2000 CPU Performance - Watch out
May 1, 2008 By 12 Comments
… at 32 thread concurrency — showing I believe a limit of MySQL to scaling out to more threads than this. Disk IO… excel here), so I am continuing to search for other bottlenecks. With low numbers of threads the Niagara was (predictably) slow… contains some tuning resources at the bottom. I find the latest Coolstack release of MySQL has many of these applied already, so…
Comment: The ultimate tool for generating optimal my.cnf files for MySQL
August 30, 2008 By 34 Comments
… depends on MySQL. You can run a script, hire a DBA, and improve your hardware, but you’ll find new bottlenecks at each…
Comment: State of MySQL Market and will Replication live ?
April 11, 2008 By 29 Comments
… expensive but it well may be finding them. As you grow your application that would become bottleneck sooner or later. Again to… things consistent as well as remove as much work from MySQL as possible.
