Error 1040 Mysql Too Many Connection
Contents |
Connectors More MySQL.com Downloads Developer Zone Section Menu: Documentation Home MySQL 5.5 Reference Manual Preface and Legal Notices General Information Installing and Upgrading MySQL Tutorial MySQL Programs MySQL Server Administration Security error 1040 (hy000) too many connections mysql Backup and Recovery Optimization Language Structure Globalization Data Types Functions and Operators
Error 1040 08004 Too Many Connections
SQL Statement Syntax The InnoDB Storage Engine Alternative Storage Engines High Availability and Scalability Replication MySQL Cluster NDB 7.2 operationalerror 1040 too many connections Partitioning Stored Programs and Views INFORMATION_SCHEMA Tables MySQL Performance Schema Connectors and APIs Extending MySQL MySQL Enterprise Edition MySQL Workbench MySQL 5.5 Frequently Asked Questions Errors, Error Codes, and Common
Mysql Too Many Connections Fix
Problems Sources of Error Information Types of Error Values Server Error Codes and Messages Client Error Codes and Messages Problems and Common Errors How to Determine What Is Causing a Problem Common Errors When Using MySQL Programs Access denied Can't connect to [local] MySQL server Lost connection to MySQL server Client does not support authentication protocol Password Fails When Entered Interactively Host mysql too many connections solution 'host_name' is blocked Too many connections Out of memory MySQL server has gone away Packet Too Large Communication Errors and Aborted Connections The table is full Can't create/write to file Commands out of sync Ignoring user Table 'tbl_name' doesn't exist Can't initialize character set File Not Found and Similar Errors Table-Corruption Issues Administration-Related Issues Problems with File Permissions How to Reset the Root Password What to Do If MySQL Keeps Crashing How MySQL Handles a Full Disk Where MySQL Stores Temporary Files How to Protect or Change the MySQL Unix Socket File Time Zone Problems Query-Related Issues Case Sensitivity in String Searches Problems Using DATE Columns Problems with NULL Values Problems with Column Aliases Rollback Failure for Nontransactional Tables Deleting Rows from Related Tables Solving Problems with No Matching Rows Problems with Floating-Point Values Optimizer-Related Issues Table Definition-Related Issues Problems with ALTER TABLE TEMPORARY Table Problems Known Issues in MySQL Restrictions and Limits Indexes MySQL Glossary Related Documentation MySQL 5.5 Release Notes Download this Manual PDF (US Ltr) - 26.7Mb PDF (A4) - 26.8Mb PDF (RPM) - 25.9Mb EPUB - 6.7Mb HTML Download (TGZ
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
Mysql Error Too Many Connections Fix
about hiring developers or posting ads with us Database Administrators Questions Tags Users Badges Unanswered Ask
Mysql Too Many Connections Flush
Question _ Database Administrators Stack Exchange is a question and answer site for database professionals who wish to improve their database skills and mysql set max connections 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 https://dev.mysql.com/doc/refman/5.5/en/too-many-connections.html 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 http://dba.stackexchange.com/questions/20479/how-to-resolve-too-many-connections-and-fatal-error-in-mysql-running-on-vps 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 4,82011326 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 CONCAT(user,'@',host) <> 'root@localhost'; This will list all users that have SUPER privilege. Most users that do application-related DB processing do not require this privilege.
Cluster and HA SupportTokuMX SupportMongoDB SupportContact https://dbiers.me/mysql-too-many-connections/ SupportPercona Emergency SupportSupport PoliciesSupport TiersRead MoreConsultingPerformance OptimizationInfrastructure Architecture and DesignHigh AvailabilityUpgrades & MigrationsServer & Database AutomationConsulting PoliciesRead MorePercona Care Software MySQL Database SoftwarePercona ServerPercona XtraDB ClusterPercona XtraBackupPercona TokuDBMySQL too many Software DocumentationSoftware RepositoriesRead MoreMongoDB Database SoftwarePercona Server for MongoDBMongoDB Software DocumentationPercona TokuMXRead MoreOpen Source Database ToolsPercona Monitoring and ManagementPercona ToolkitPercona Monitoring PluginsDatabase Tools DocumentationRead MoreDocumentation LibraryFind all the documentation you need to set up and manage too many connection all our products.Read MoreDownloadsRead More Solutions BuildHighly Scalable Data InfrastructureHighly Available Data InfrastructureData Infrastructure AutomationCloud Data StorageDatabase and Infrastructure Architecture and DesignRead MoreFixPerformance Audit, Tuning and OptimizationServer Audit and StabilizationDatabase Server Outage Restoration24 x 7 ExpertiseData RecoveryRead MoreOptimizeDatabase MonitoringApplication and Server Performance OptimizationInfrastructure Review and Design ServicesExpertise On DemandRead MoreManageRemote Managed ServicesProject Management and AdvisorsTrusted Data AdvisorsDatabase BackupRead More Community Data Performance BlogRead from leading data performance experts in Percona's Official blog.Read MoreEventsView all the information about upcoming events and shows where we can meet up!Read MoreForumsAsk Percona database experts for performance help now in our support forums!Read MoreLet's Get SocialTwitterLinkedInGoogle GroupsFacebookRead MoreMySQL 101
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... 1 Get Hard Drive UUID's January 11, 2014 1 Monitoring Software RAID1 with mdadm January 31, 2016 0 Steam Game Server Ports, Autostart, and Update Script August 5, 2012 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