Mysql Server Has Gone Away Error
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Join them; it only takes a minute: Sign up MySQL error 2006: mysql server has gone away up vote 94 down vote favorite 14 I'm running a server at my office to process some files and report the results http://dev.mysql.com/doc/mysql/en/gone-away.html to a remote MySQL server. The files processing takes sometime and the process dies halfway through with the following error: 2006, mysql server has gone away Ive heard about the MySQL setting, wait_timeout, but do I need to change that on the server at my office or the remote MySQL server? mysql mysql-error-2006 share|improve this question edited Jan 25 at 7:44 bpoiss 7,69311435 asked Oct 29 '11 at 22:44 floatleft 97752540 2 it depends of that witch http://stackoverflow.com/questions/7942154/mysql-error-2006-mysql-server-has-gone-away server gives the error –bksi Oct 29 '11 at 23:01 1 possible duplicate of ERROR 2006 (HY000): MySQL server has gone away –Simon East Oct 6 '14 at 0:40 For people getting here from Google: If changing the max_allowed_packet size or wait_timeout amount doesn't fix it, check your memory usage. I was getting the same error and it was being caused by my server running out of memory. I added a 1GB swap file and that fixed it. –Pikamander2 Sep 19 at 23:52 1 @Pikamander2 thanks for the hint! –ihsan Sep 26 at 9:10 add a comment| 13 Answers 13 active oldest votes up vote 4 down vote accepted It may be easier to check if the connection and re-establish it if needed. See PHP:mysqli_ping for info on that. share|improve this answer edited May 14 '15 at 14:46 cgaldiolo 525610 answered Oct 29 '11 at 23:15 Niet the Dark Absol 209k37240372 Good point, if you have a process that is intermittent then its better to release your connection so you don't used up all the connections. Rebuilding the connection is generally cheap. +1 –Yzmir Ramirez Nov 3 '11 at 0:48 add a comment| up vote 179 down vote I've encountered this a number of times and I've normally found the answer to be a very low default setting of max_allowed_packet. Raising it in /etc/my.cnf (under [mysqld])
that make connections all over the world. Join today Community Documentation Community Docs Home Develop for Drupal Theming Guide Glossary Contribute to Docs MySQL: "Warning: MySQL server has https://www.drupal.org/node/259580 gone away" Last updated April 14, 2016. Created on May 17, 2008.Edited by saurabh.dhariwal, chapabu, batigolix, Elijah Lynn. Log in to edit this page.This dreaded MySQL error and subsequent Warning is due, except in rare cases, to a lack of resources available to MySQL, such as required for the operation of your Drupal installation. Allowing the necessary resources to MySQL resolves this issue most mysql server of the time. Also, it is easy to resolve, if you know how to proceed. Introduction Here is a step by step guide, equally valid for your Linux server as well as any local Windows MySQL installation you may be using as a trial installation along with your local Drupal installation. MySQL comes with a default configuration of the resources it is going mysql server has to use, specified in "my.cnf" (Linux) or "my.ini" (Windows) during the installation of MySQL. In Linux this file is located at /etc/my.cnf to set global options, or /usr/local/var/mysql-data-dir/my.cnf to set server-specific options. In Windows this file is located by default at C:\Program Files\MySQL\MySQL Server X.Y\my.ini. Resources allowed by the default configuration are normally insufficient to run a resource-intensive application. You must modify the following resource specifications if they are available in your original configuration file, or add them to the configuration file if they are not already specified (because some are not present by default) : Important: Remember to keep backup files before you do anything! You will also have to reload the MySQL service after making changes to these configuration files. #MyISAM specifications [mysqld] port = 3306 socket = /tmp/mysql.sock skip-external-locking key_buffer = 384M max_allowed_packet = 64M table_open_cache = 4096 sort_buffer_size = 2M read_buffer_size = 2M read_rnd_buffer_size = 64M myisam_sort_buffer_size = 64M thread_cache_size = 8 query_cache_size = 32M #InnoDB specifications innodb_buffer_pool_size = 384M innodb_additional_mem_pool_size = 20M innodb_log_file_size = 10M innodb_log_buffer_size = 64M innodb_flush_log_at_trx_commit = 1 innodb_lock_wait_timeout = 180 Important: table_cache was renamed to table_open_cache in MySQL 5.1.3 (Change