Error Establishing A Database Connection Too Many Connections
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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 error establishing a database connection godaddy Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation error establishing a database connection hostgator Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just error establishing a database connection localhost like you, helping each other. Join them; it only takes a minute: Sign up What can cause “too many database connections” up vote 2 down vote favorite 1 My Wordpress website got a "error establishing connection to database"
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massage. My host informed me it was because my "user" had too many database connections that were open at once. This caused an error making additional connections, and thus the massage. This has been corrected by killing deadlocked database connections. There were a number of connections copying data to temporary tables, but the deadlock was caused by a large set of lookups waiting for one update. Can someone explain to me how this might have error establishing a database connection wamp happened, and how to avoid it? (p.s: that WP installation has over 2000 posts) php mysql wordpress share|improve this question asked Oct 9 '10 at 22:59 Tal Galili 7,5821882128 add a comment| 5 Answers 5 active oldest votes up vote 4 down vote accepted In a shared hosting environment this behavior will occur sooner or later as your blog starts seeing more traffic - the specifics you mentioned sound like they may be related to poorly-written WordPress plugins (for performance's sake, make sure all your plugins updated along with the WordPress core). You might also want to consider WP Super Cache if you haven't already. share|improve this answer answered Oct 9 '10 at 23:12 danlefree 448212 add a comment| up vote 5 down vote One thing I've seen help a great deal with WP and database speed is to clean your database of post and page revisions. WP keeps a full copy of each edit revision, and with 2000 posts, your database could be huge. Run this as an SQL query in phpmyadmin to clear revisions. I've seen databases drop 75% in size and run much faster after clearing revisions. Change the table prefix if you changed it when you installed WP, and run a backup beforehand. DELETE a,b,c FROM wp_posts a LEFT JOIN wp_term_relationships b ON (a.ID = b.object_id) LEFT JOIN wp_po
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Articles Tools & Resources Email Configuration Blacklist Check Visual DNS Lookup Quick Tagger Icon Sets Favicon Generator Bounce Back Parser What is my IP address? >>Education Channels Education http://stackoverflow.com/questions/3898252/what-can-cause-too-many-database-connections Channels Android BoldGrid cPanel DokuWiki Drupal 7 Drupal 8 Everything Email Joomla 2.5 Joomla 3.1 K2 Magento 1.6 Mambo MediaWiki Moodle Movable Type OpenCart OpenCart 2.0 osCommerce PHP-Fusion PHP-Nuke phpBB phpList Premium Website Builder PrestaShop 1.5 PrestaShop 1.6 SMF Tiki Wiki VirtueMart 3 Web Hosting Manager Website Design WordPress >>WordPressWordPress Education Channel100 Level Classes100: Wordpress Updates101: An http://www.inmotionhosting.com/support/edu/wordpress/error-establishing-database-connection introduction to WordPress102: WordPress Features103: Installing a Theme104: Introduction to Plugins and Widgets105: Changing the Wordpress Appearance200 Level Classes201: Recommended WordPress Plugins202: Migrating your Existing WordPress site to InMotion Hosting203: WordPress MU/ Network204: Customizing your Wordpress Sidebar205: WordPress security Plugins206:Using WordPress for Showing Images207: Photographers Guide to a Simple WordPress Site>>343: Wordpress - "Error Establishing a Database Connection&... 343: Wordpress - "Error Establishing a Database Connection" Written by Scott Mitchell Views: 30,205 Published: Aug 25, 2016 Comments: 5 While the "Error Establishing a Database Connection" is a fairly common error, troubleshooting it can take a few different routes. This article will explain the error and go over the different causes and fixes. What is the "Error Establishing a Database Connection" error? This error means that your Wordpress script either cannnot locate the database, or is being refused the ability to connect to the database. What causes this error? This error can occur due to a few different causes, each one is described along with recommended solution. Incorrect connection param
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 http://wordpress.stackexchange.com/questions/97224/error-establishing-database-connection-high-traffic the company Business Learn more about hiring developers or posting ads with us WordPress https://www.wpkube.com/how-to-fix-error-establishing-database-connection-in-wordpress/ Development Questions Tags Users Badges Unanswered Ask Question _ WordPress Development Stack Exchange is a question and answer site for WordPress developers and administrators. 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 Error establishing error establishing database connection - high traffic? up vote 1 down vote favorite I have a WordPress 3.5.1 site that's getting a little bit of traffic (80 concurrent visitors, ~5 clicks/pageviews per second). The site runs fine until it spikes to ~85 visitors. There are usually 4 admins logged in at the same time. The site has 8 custom post types--Posts has 3500 posts, and Press Releases (a custom post type) has 13000 posts. error establishing a All of this is paginated on the site, so there are never more than 20 posts showing on any one page. The only plugins I'm using are wp-pagenavi and w3totalcache. I set WP_DEBUG_LOG to true and logged the errors. The main error I'm getting (besides various notices and warnings unrelated to this issue) is mysql has reached the max_user_connections limit. My current max_user_connections is set to 75. I tried to set it higher, but the cpu can't handle the load (4 Quad Core CPUs at 2.17GHz each and 4GB of RAM). What could be causing so many connections? I've viewed the mysql processes running when the errors happened and there are many connections that say "SLEEPING" or "SLEEP" (probably 15-20). I also noticed via the process logs that httpd is restarting quite often during the peak traffic times. Any ideas on how to resolve the issue? NOTE: Please do not respond if your answer is to check my wp-config.php file and make sure my username, password, and host are correct. This is NOT the issue. The site works fine under normal traffic. database mysql errors share|improve this question edited Apr 25 '13 at 17:21 asked Apr 25 '13 at 16:06 codescribblr 1279 I don't think this is a WordPress question. –vancoder Apr
Flywheel Coupons Themes WP Plugins WP Hosting Services View All Deals WordPress Tutorials How to Fix Error Establishing a Database Connection in WordPress Last Updated on: July 27, 2016 Freddy Muriuki 25 CommentsWhen you start using WordPress, you're bound to encounter a number of errors, some grievous, other not so much. It's inevitable; it can be your fault, at times systems break, someone fails at their job, natural calamities strike - anything could cause an error. Even something as good as an increase in traffic can break your WordPress site, leaving you with an error and a bad taste in your mouth. Now, just like any other human-made project, WordPress is susceptible to its share of errors, none of which is as baffling and strenuous as the "error establishing database connection" error. That's because this error doesn't come with details of what went wrong, despite that it can be caused by several things, which - of course - only adds salt to the wound. All you get when you try loading your site is: In today's post, we will look a little deeper into this WordPress error, and then cover some of the solutions you can use to restore your site to its former glory. Enjoy and please share your tips and solutions, or ask your questions in the comment section at the end. What Does "Error Establishing a Database Connection" mean? To give you an insider's understanding of the "EEDC" error, we first need to break down WordPress into its two fundamental components. WordPress is built using PHP (e.g. index.php, sidebar.php etc) and MySQL. PHP is in charge of all functions on your WordPress site (e.g. posting comments, retriving posts and pages etc) and MySQL is in charge of data storage. For instance, when you type your URL in the address bar and hit enter, PHP kicks in, fetches and displays the contents of the homepage (index.php) from your MySQL database. Images, videos and such media are, however, stored in the wp-content folder, from where they're retrieved by PHP. Y