Mysql Error No 1040
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Error 1040 (hy000) Too Many Connections Mysql
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Mysql Max_connections
helping each other. Join them; it only takes a minute: Sign up How do I deal with a MySQL Error Number 1040: Too many connections? up vote 1 down vote favorite I am using two database connections https://dev.mysql.com/doc/refman/5.5/en/too-many-connections.html to achieve a particular task. Everything is working fine, but I am displaying data using paging and while going to the next page sometimes MySQL crashes. After that, when I open the MySQL database by using localhost/xampp/url it gives me the below error: #1040 Too many connections How can I fix this problem? mysql jsp share|improve this question edited Mar 9 '13 at 20:22 Brad Larson♦ 150k36333499 asked Nov 9 '12 at 9:40 Kamalpreet Singh 64 http://stackoverflow.com/questions/13305487/how-do-i-deal-with-a-mysql-error-number-1040-too-many-connections add a comment| 1 Answer 1 active oldest votes up vote 0 down vote There are many opened conenctions. You should close them in application after using. Another variant is to setup wait_timeout server variable - the number of seconds the server waits for activity on a non-interactive connection before closing it. Not used connections will be closed automatically. share|improve this answer answered Nov 9 '12 at 10:20 Devart 76.7k12100120 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using Facebook Sign up using Email and Password Post as a guest Name Email Post as a guest Name Email discard By posting your answer, you agree to the privacy policy and terms of service. Not the answer you're looking for? Browse other questions tagged mysql jsp or ask your own question. asked 3 years ago viewed 2054 times active 3 years ago Related 17MySQL Error “Too many connections”2Analyzing a MySQL table gives ERROR 1040 - Too many connections8mySQL Error 1040: Too Many Connection0too many connections.#1040 Can't connect to mysql server2SQLSTATE[HY000] [1040] Too many connections5How to fix Message: SQLSTATE[08004] [1040] Too many connections5Golang, mysql: Error 1040: Too many connections0Java servlet context causes too many MySQL connections2Getting the following error in PHP “PDOException - SQLSTATE[HY000] [1040] Too many connections ”1SetMaxOpenConns() not solving `Error 1040: Too m
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David · October 12, 2012 MySQL too many connections. Of course this simply means there are too many connections to the MySQL database. This can happen on a very busy site or even on a site with few visitors that contains poor coding that doesn't drop connections. To fix it, you can go one of two ways. Through SSH using MySQL commands or by adding a directive to the global configuration file (/etc/my.cnf). ------------- For editing the configuration file, simply add the below directive to the configuration file. /etc/my.cnf max_connections=XXX Then restart MySQL services: [01:50:26] [root@localhost ~]# service mysql restart Shutting down MySQL....... [ OK ] Starting MySQL. [ OK ] ------------- To change it via command line, you will need to be root and log into MySQL and use the command "set global max_connections=XXX": [01:50:37] [root@localhost ~]# mysql Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 62 Server version: 5.1.65-cll MySQL Community Server (GPL) Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> set global max_connections=5000; Query OK, 0 rows affected (0.00 sec) Tags: Bashconnectionsdatabasesmysql You may also like... 3 Use rest of free space on LVM partition with new Logical Volume March 10, 2013 2 Custom CLI Bash Prompt Colors August 4, 2012 0 NGINX High Availability Load Balance Apache Backend (CentOS 7.x) April 11, 2016 2 Responses Comments2 Pingbacks0 Sean Dempsey says: January 27, 2016 at 10:38 AM I found the default value set here (124) to be surprisingly low. However, is there any danger is changing the value to a number as high as 5000 (per your example above)? What are the pros/cons involved? Reply David says: January 27, 2016 at 11:23 AM It depends on the traffic you're receiving. Around 1000 connections is the maximum before you want to start load balancing and clustering. Setting it too high will result in the server crashing after it runs out of memory. If you have some pages or parts of your website or application that are not closing connections, you should review the programming and reasoning behind why those connections are staying open. A site like WordPress, for example, will: - Open the page. - Open connection to the database. - Query the database for info and receive said info. - Close connection to the database. - Display information / formatted, etc. If your programming is not pretty, you'