mysql process 99.9 percent
hi do you have any idea why the mysql process is 99.9 percent? when i click one hyperlink it takes more than 1 minute to load the page. thank you very much. -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.6/111 - Release Date: 9/23/2005 -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: mysql process 99.9 percent
Joeffrey Betita wrote: do you have any idea why the mysql process is 99.9 percent? No. when i click one hyperlink it takes more than 1 minute to load the page. thank you very much. Maybe if you provided some details then someone would be able to help you. We're not psychic. What programming language/API? What MySQL version? What OS/platform? How much load is on your database from other users, if any? What is the query being executed when the process is at 99.9%? -- Jasper Bryant-Greene Freelance web developer http://jasper.bryant-greene.name/ -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: mysql process 99.9 percent
Hi Most readers in this list expect OS and MySQL server information etc before responding. In our experience this is usually caused by poor SQL query construction e.g. large result set e.g. x million rows and/or index choice, database table design and/or MySQL server setup. Turn-on logging, rerun selected queries with and without the explain syntax, look at the MySQL administrator process list to see which query is the problem whilst the CPU is 99.9 %. Good news is : 'it is solvable'. Mark Joeffrey Betita wrote: hi do you have any idea why the mysql process is 99.9 percent? when i click one hyperlink it takes more than 1 minute to load the page. thank you very much. -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.6/111 - Release Date: 9/23/2005 -- Mark Carson Managing Integrated Product Intelligence/IPI CC CK 95/35630/23 Members : MH Carson and AG Carson EMail : [EMAIL PROTECTED]/[EMAIL PROTECTED] snailmail : P.O. Box 36095 Menlo Park 0102, South Africa Cell : +27 83 260 8515 Tel : +27 12 349 2786 Fax : +27 12 349 2787 This e-mail may contain PRIVILEGED AND/OR CONFIDENTIAL INFORMATION intended only for use of the addressee. If you are not the addressee, or the person responsible for delivering it to the person addressed, you may not copy or deliver this to anyone else. If you received this e-mail by mistake, please do not make use of it, nor disclose it's contents to anyone. Thank you for notifying us immediately by return e-mail or telephone. INFORMATION PROVIDED IN THIS ELECTRONIC MAIL IS PROVIDED AS IS WITHOUT WARRANTY REPRESENTATION OR CONDITION OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO CONDITIONS OR OTHER TERMS OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE. THE USER ASSUMES THE ENTIRE RISK AS TO THE ACCURACY AND THE USE OF THIS DOCUMENT. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: mysql process 99.9 percent
Joeffrey Betita wrote: hi Jasper the linux distribution is redhat 9, mysql-4.0.15a-log, apache-2.0.47, php-4.3.3 etc. just clicking one hyperlink and searching for any item. OK, would you mind providing the SQL query that's being executed when you click that hyperlink? You see, MySQL doesn't have anything to do with hyperlinks and searching (well, not searching at the user-level, anyway). It only knows about SQL queries. So if something's making it go slow, the culprit is an SQL query, not a hyperlink. Please always reply to the list, not just to me. -- Jasper Bryant-Greene Freelance web developer http://jasper.bryant-greene.name/ -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: mysql process 99.9 percent
On Monday, 26 September 2005 at 9:29:32 +0200, mark carson wrote: Joeffrey Betita wrote: hi do you have any idea why the mysql process is 99.9 percent? when i click one hyperlink it takes more than 1 minute to load the page. thank you very much. Most readers in this list expect OS and MySQL server information etc before responding. In our experience this is usually caused by poor SQL query construction e.g. large result set e.g. x million rows and/or index choice, database table design and/or MySQL server setup. Turn-on logging, rerun selected queries with and without the explain syntax, look at the MySQL administrator process list to see which query is the problem whilst the CPU is 99.9 %. FWIW, we have at least one case where the server gets itself into a loop for no obvious reason. See http://bugs.mysql.com/bug.php?id=414 and http://bugs.mysql.com/bug.php?id=12061 for more details. If the problem at hand is related to this bug, I'd be very interested in hearing from you, especially if you can reproduce the problem easily. Note that the submitter of the second-mentioned bug report has done a very good job of describing his problem. Only reports of similar quality would be of much help. If this isn't your (Joeffrey's) problem, it might give you an idea of the kind of information we're looking for. Greg -- Greg Lehey, Senior Software Engineer MySQL AB, http://www.mysql.com/ Echunga, South Australia See complete headers for address and phone numbers. Are you MySQL certified? http://www.mysql.com/certification/ pgpc37noUE7K3.pgp Description: PGP signature
