Mysql Error Connecting To Database Too Many Connections
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Error 1040 (hy000): Too Many Connections
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common issue ... Cause: This error means that the limit of simultaneous MySQL connection to mysql server is reached and new connections to the server cannot be established at this time. Resolution: There are two ways to solve http://pensacola-tech.com/pensacola/2010/08/20/unable-to-connect-to-database-too-many-connections/ this issue. The first one is increase the connection limit and the second, find what is the reason of “too many connection” error and try to lower MySQL server usage. MySQL server state can be checked using ‘mysqladmin’ http://dba.stackexchange.com/questions/20479/how-to-resolve-too-many-connections-and-fatal-error-in-mysql-running-on-vps utility. For example to find out the number of current connections to the server use: #mysqladmin -uadmin -p extended-status | grep Max_used_connections | Max_used_connections | 11 | Current connections limit settings can be found with: #mysqladmin -uadmin -p too many variables | grep 'max.*connections' | max_connections | 100 | | max_user_connections | 0 In the example above, maximum number of connections to the server (max_connections) is set to 100. And maximum number of connections per user (max_user_connections) to zero, that means unlimited. There are default MySQL values. They can be redefined in /etc/my.cnf, for example: [mysqld] set-variable=max_connections=150 set-variable=max_user_connections=20 Restart MySQL after my.cnf is modified. Note, if you set connections limit to very high value (more than too many connections 300) it may affect the server performance. It is better to find out the reason of the high MySQL server usage. You may check what users/requests slow mysql and take all curent connections, for example with the command: # mysqladmin -uadmin -p processlist Tweet 9 Comments fat stomachs September 3, 2010 at 3:34 am I truly loved this brilliant article. Please continue this awesome work. Regards, Duyq. Pingback: Tibia youtube depression cooking September 4, 2010 at 8:52 am Pretty good post. I just stumbled upon your blog and wanted to say that I have really enjoyed reading your blog posts. Any way I'll be subscribing to your feed and I hope you post again soon. abc baking cake decorating September 5, 2010 at 1:58 am I can't but agree.I always wanted to write in my site something like that but I guess you'r faster. online survey jobs September 6, 2010 at 7:07 am Usually I do not post on blogs, but I would like to say that this article really forced me to do so! Thanks, really nice article. Owen Catts September 12, 2010 at 11:59 am Gday, I was checking this webpage with my phone and this appears somewhat strange. Decided you’d would like to know. It’s a good post however, just didn't mess that up. Link Building September 16, 2010 at 7:04 am Heya
log in tour help Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Database Administrators Questions Tags Users Badges Unanswered Ask Question _ Database Administrators Stack Exchange is a question and answer site for database professionals who wish to improve their database skills and learn from others in the community. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top How to resolve too many connections and fatal error in mysql running on vps up vote 9 down vote favorite 7 I am running an application PHPlist on my linode server, simultaneously running 12 PHP scripts, each of which opens a MySQL connection. Now when I access PHPlist it often shows this error: Fatal Error: Sorry, the server is currently too busy, please try again later. When I am trying to access phpMyAdmin, it shows me a #1040 error. Output of my PHP scripts which run through cron jobs shows: PHP Warning: mysqli_connect(): (HY000/1040): Too many connections I am using the LAMP stack on the server with phpMyAdmin; the top output in terminal shows mysqld using 100-130% CPU. When I am trying to troubleshoot this problem I got some clues: Increase max_connection variable : I am using 200 (100 by default) Open table cache: 512 (400 by default) There are lots of variables to set but I can't determine what specific ones, I am getting some reference from: too many connections and http://dev.mysql.com/doc/refman/5.5/en/table-cache.html But according to my usage how to increase memory and what is the maximum memory difficult for me. On my server I am using around 12 PHP scripts, PHPlist application for sending emails, and a major database for user registrations. Kindly help me to resolve this problem. mysql phpmyadmin php share|improve this question edited May 14 '15 at 15:05 mustaccio 4,87421326 asked Jul 6 '12 at 6:43 Shashank 1374414 @RolandoMySQLDBA: Please Enlighten on this problem to resolve –Shashank Jul 6 '12 at 7:48 add a comment| 2 Answers 2 active oldest votes up vote 11 down vote accepted First you need to do is run this query: SELECT user,host FROM mysql.user WHERE super_priv='Y' AND C