Mysql Http 500 Internal Server Error
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helping each other. Join them; it only takes a minute: Sign up HTTP 500 (Internal server error) on concurrent MySQL requests through apache up vote 4 down vote favorite I have setup a Wikipedia database where: One (1) host is running mysqld, running the database; I have installed the mariadb-server package. I have stored 16 million pages 500 internal server error iis in 4 different tables (page, text, revision, redirect; each has 16 million rows, the latter about 7 million). Size of /var/lib/mysql/ibdata1: 88 GiB. Requests are served through an http server (apache2), using MediaWiki, just like in wikipedia.org. One single-threaded worker, on another machine, is sending 231 million requests to the database through http, with a timeout of 200-500 msec; many single requests time-out even at 200 msec. The problem is, that most of the requests are not served due to "HTTP 500" (Internal Server Error). A few requests (100-200) are served without problems, but when launching requests with more than ~1'000 requests, then I receive an Internal Server Error on most occasions. Here is a snapshot during an ongoing experiment: 38,086 requests: HTTP 200 OK. 1,200,226 requests: HTTP 500 Internal Server Error 74,280 requests: timed out In particular, here is a small excerpt from /var/log/apache2/error.log on the mysqld server: [Mon Apr 18 02:42:43.492142 2016] [:error] [pid 70738] [client 172.16.96.23:41031] PHP Fatal error: Maximum execution time of 30 seconds exceed
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the workings and policies of this site About Us Learn more about Stack Overflow the server error 404 company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss http://stackoverflow.com/questions/36683891/http-500-internal-server-error-on-concurrent-mysql-requests-through-apache Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up 500 Internal Server Error on MySQL Query up vote 1 down vote favorite Why am I getting an error in http://stackoverflow.com/questions/24492373/500-internal-server-error-on-mysql-query my file processApplication.php? I am just trying to use my database class to get a MySQL connection so I can prepare my SQL statement before I execute it. The variables, $_POST['status'], $currentDate, and $_POST['id'] do have values as I've tested this without using the database class but instead using a mysqli_connect statement. Any help please? processApplication.php prepare($query); $stmt -> bind_param("isi", $_POST['status'], $currentDate, $_POST['id']); $results = $stmt->execute(); } ?> And Database.php: include_once "variables.php"; class Database { var $database_name; var $database_user; var $database_pass; var $database_host; var $database_link; private static $instance; function Database($user=null, $pass=null, $host=null, $name=null) { $this->database_user = isset($user)?$user:$GLOBALS["db_user"]; $this->database_pass = isset($pass)?$pass:$GLOBALS["db_pass"]; $this->database_host = isset($host)?$host:$GLOBALS["db_host"]; $this->database_name = isset($name)?$
that make connections all over the world. Join today Community Community Home Getting Involved Chat Forum SupportInstalling Drupal Installation - HTTP 500 Internal server error [SOLVED] Posted by RobOnema on June 29, 2015 at 9:20am Hello, https://www.drupal.org/node/2513804 I have a problem with the Drupal 6 installation. Settings: Version Apache : Apache/2.2.22 Version MySQL : mysql Ver 14.14 Distrib 5.5.28 Version PHP 5.2.17 I try to install Drupal as usual (copy default.settings.php -> settings.php...). Then I go to "http://localhost" with my browser to set up the installation. But at the database configuration, when I confirm my settings, I have the HTTP 500 Internal server error. If I refresh the server error page, I can still continue the installation until I finish it. The problem now comes when I try to go to admin pages like modules. I can't access to these pages and I got once more the HTTP 500 Internal server error. But the weird thing is that I can still go to create contents pages and add contents : and it works ! I have checked the error.log of Apache internal server error and this is what I got: [Fri Jun 26 17:05:40 2015] [notice] Parent: Received shutdown signal -- Shutting down the server. [Fri Jun 26 17:05:40 2015] [notice] Child 1164: Exit event signaled. Child process is ending. [Fri Jun 26 17:05:41 2015] [notice] Child 1164: Released the start mutex [Fri Jun 26 17:05:42 2015] [notice] Child 1164: All worker threads have exited. [Fri Jun 26 17:05:42 2015] [notice] Child 1164: Child process is exiting [Fri Jun 26 17:05:42 2015] [notice] Parent: Child process exited successfully. PHP Warning: PHP Startup: Unable to load dynamic library 'C:\Program Files (x86)\PHP\ext\php_pdo_mysql.dll' - Le module sp\xe9cifi\xe9 est introuvable.\r\n in Unknown on line 0 [Fri Jun 26 17:05:50 2015] [notice] Apache/2.2.25 (Win32) configured -- resuming normal operations [Fri Jun 26 17:05:50 2015] [notice] Server built: Jul 10 2013 01:52:12 [Fri Jun 26 17:05:50 2015] [notice] Parent: Created child process 1944 PHP Warning: PHP Startup: Unable to load dynamic library 'C:\Program Files (x86)\PHP\ext\php_pdo_mysql.dll' - Le module sp\xe9cifi\xe9 est introuvable.\r\n in Unknown on line 0 [Fri Jun 26 17:05:50 2015] [notice] Child 1944: Child process is running [Fri Jun 26 17:05:50 2015] [notice] Child 1944: Acquired the start mutex. [Fri Jun 26 17:05:50 2015] [notice] Child 1944: Starting 64 worker threads. [Fri Jun 26 17:05:50 2015] [notice] Child 1944: Starting