PUBLIC MARKS with tags mysql & tutorial

This tutorial explains how you can set up MySQL master-master replication on four MySQL nodes (running on Debian Etch). The difference to a two node master-master replication (which is explained here) is that if you have more than two nodes, the replication goes in a circle, i.e., with four nodes, the replication goes from node1 to node2, from node2 to node3, from node3 to node4, and from node4 to node1. Since version 5, MySQL comes with built-in support for master-master replication, solving the problem that can happen with self-generated keys. In former MySQL versions, the problem with master-master replication was that conflicts arose immediately if node A and node B both inserted an auto-incrementing key on the same table. The advantages of master-master replication over the traditional master-slave replication are that you don't have to modify your applications to make write accesses only to the master, and that it is easier to provide high-availability because if the master fails, you still have the other master.

his document is derived from Christoph Haas’ tutorial “Howto: ISP-style Email Server with Debian-Etch and Postfix” (http://workaround.org) and Falko Timme’s tutorial “Virtual Users And Domains With Postfix, Courier, MySQL And SquirrelMail (Ubuntu 8.04 LTS)” (http://www.howtoforge.com). The associated Mailfix Drupal module must be installed as part of this tutorial. It will guide you through the necessary steps to configure a Drupal driven Mail server. Provided features: * Drupal managed email accounts * Support for virtual domains * Automatic forwarding * Postfix quota support * Silent BCC monitoring * Other features: anti-spam, anti-virus

This tutorial is based on Falko Timme's tutorial for MySQL Cluster 5.0. It shows how to configure a MySQL 5.1 cluster with five nodes: 1 x management, 2 x storage nodes and 2 x balancer nodes. This cluster is load-balanced by an Ultra Monkey package which provides heartbeat (for checking if the other node is still alive) and ldirectord (to split up the requests to the nodes of the MySQL cluster). In this document I use Debian Etch 4.0 for all nodes. Therefore the setup might differ a bit for other distributions. The two data nodes were x64 to use all of the 8GB RAM. Servers were compiled from source so you should be able to make it running on any platform. The MySQL version I use in this setup is 5.1.24-rc. It's a release candidate, but I wanted to use 5.1 to take advantage of Memory-Disk Based tables. Beginning with MySQL 5.1.6, it is possible to store the non-indexed columns of NDB tables on disk, rather than in RAM as with previous versions of MySQL Cluster.

I run a few cPanel servers and run Munin as my resource monitor. At the time I wrote this the version included with cPanel was munin 1.24. Ever since I have installed the plugin from cPanel it would monitor MySQL upon first install and then stop if the server was reboot. Uninstalling and reinstalling would once again get Munin to monitor MySQL but having to uninstall and reinstall just for a reboot, just did not seem like something that you should have to do. After many months of on and off testing this is the fix I have come up with.

Lighttpd is a secure, fast, standards-compliant web server designed for speed-critical environments. This tutorial shows how you can install Lighttpd on a Debian Etch server with PHP5 support (through FastCGI) and MySQL support.

Un super site pour apprendre le langage de programmation PHP couplé au langage serveur mySQL

Le problème, c'était la masse de données accumulée au fil des mois. Mon script, qui tournait à vitesse grand V sur une base de petite taille lors des premiers mois d'exploitation, finissait par s'embourber de plus en plus dans les requêtes successives. Pourquoi ? Parce que chacune de ces requêtes portait sur l'intégralité des enregistrements de la table.

Travailler avec des tables SQL de 30 Mo pour en triturer les données est une épreuve capable de mettre à genoux votre serveur dédié de compétition. La fonction CREATE TEMPORARY TABLE peut vous aider à alléger grandement les performances. Etude de cas sur une application de statistiques de visite et autres optimisations possibles.

the missing piece for installing pdo_mysql on ubuntu (sudo apt-get install libmysqlclient15-dev)

This tutorial shows how to set up a Debian Etch (Debian 4.0) based server that offers all services needed by ISPs and hosters: Apache web server (SSL-capable), Postfix mail server with SMTP-AUTH and TLS, BIND DNS server, Proftpd FTP server, MySQL server, Courier POP3/IMAP, Quota, Firewall, etc. This tutorial is written for the 32-bit version of Debian Etch, but should apply to the 64-bit version with very little modifications as well.

Installation et configuration d'un serveur web Apache 2.0, PHP 5, MySQL 4.1 et phpMyAdmin pour Windows