Installing Apache2 With PHP5 And MySQL Support On CentOS 5.3 (LAMP)

LAMP is short for Linux, Apache, MySQL, PHP. This tutorial shows how you can install an Apache2 webserver on a CentOS 5.3 server with PHP5 support (mod_php) and MySQL support.

Peter Fenton’s open source investment tips. Boxee raises $6m. And more.

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Digesting the VMware-SpringSource deal
In the wake of VMware’s acquisition of SpringSource the WSJ examined Peter Fenton’s open source investment portfolio and what he looks for in an open source vendor. Meanwhile Matt Asay noted that VMware’s purchase of SpringSource is the first big acquisition of a company based on an Apache license, while Charles Babcock reported …

Sun's LAMP support is assembled from two pieces: the L is from our Linux/GNU Support (see SunSolve entry), while the AMP comes from the GlassFish WebStack, which, in its latest incarnation includes Apache HTTP Server, lighttpd, memcached, MySQL, PHP, Python, Ruby, Squid, Tomcat, GlassFish (v2.1) and Hudson (features).

The inclusion of Hudson is a bit of an opportunistic move (more on that in a bit), the rest comprises a well tested, integrated, …

Installing Apache2 With PHP5 And MySQL Support On Ubuntu 9.04 (LAMP)

LAMP is short for Linux, Apache, MySQL, PHP. This tutorial shows how you can install an Apache2 webserver on an Ubuntu 9.04 server with PHP5 support (mod_php) and MySQL support.

There has been no shortage of lively discussion on open source software licenses with recent shifts in the top licenses, perspectives on the licenses or lack of them for networked, SaaS and cloud-based software, increased prominence of a Microsoft open source license and concern over the openness (or closedness, depending on your perspedtive) of the latest devices. Amid all of it, we’re pleased to present our latest long-form report, CAOS 12 - The Myth of Open Source …

So, when you connect on the fly to a database your subject to a variety of issues, like when the db is not available and when the db does not have a route.

One of the main reasons why a dev may want to connect on the fly is because they have too many front ends to hold a persistent connection on the backends. Since mySQL does not use libevent, holding open threads to mySQL is much more costly. Threads == Memory.

But, that's here nor there. The main purpose of this post is to talk about how to recover from failed connections that block apache threads.

Common Failures:
No route to Host
Flapping NIC
Locked Tables
Recovering from a Crash
more of the same.


My Environment:
I have a bunch of webservers (200+) that all have 300 possible threads (60000 possible connections to a single DB) behind a load balancer that uses the LB least connections …

First there was LAMP.  But are you using GLAMMP?  You have probably not heard of it because we just coined the term while chatting at work.  You know LAMP (Linux, Apache, MySQL and PHP or Perl and sometimes Python). So, what are the extra letters for?

The G is for Gearman - Gearman is a system to farm out work to other machines, dispatching function calls to machines that are better suited to do work, to do work in parallel, to load balance lots of function calls, or to call functions between languages.

The extra M is for Memcached - memcached is a high-performance, distributed memory object caching system, generic in nature, but intended for use in speeding up dynamic web …

How To Set Up WebDAV With MySQL Authentication On Apache2 (Debian Lenny)

This guide explains how to set up WebDAV with MySQL authentication (using mod_auth_mysql) on Apache2 on a Debian Lenny server. WebDAV stands for Web-based Distributed Authoring and Versioning and is a set of extensions to the HTTP protocol that allow users to directly edit files on the Apache server so that they do not need to be downloaded/uploaded via FTP. Of course, WebDAV can also be used to upload and download files.