Ronald Bradford last week posted about memcached not being multi-threaded on Ubuntu, something he discovered via some small utilities that are bundled with libmemcached, written by Brian Aker.

When I noticed there were no Ubuntu packages for libmemcached (or the CLI tools) I decided to create some.

For your enjoyment: http://ubuntu.cafuego.net/dists/jaunty-cafuego/memcached/ (Source debs are included)

The repository also contains a memcached that has been re-compiled with multithreading enabled.

I discovered while compiling Wafflegrid today that by default, the Ubuntu binaries for memcached are not-multithreaded.

Following the installation of memcached from apt-get and libmemcached I ran memslap for:

$ memslap -s localhost
    Threads connecting to servers 1
    Took 1.633 seconds to load data

$ memstat -s localhost
Listing 1 Server

Server: localhost (11211)
     pid: 23868
     uptime: 54
     time: 1244575816
     version: 1.2.2
     pointer_size: 32
     rusage_user: 0.90000
     rusage_system: 0.120000
     curr_items: 10000
     total_items: 10000
     bytes: 5430000
     curr_connections: 1
     total_connections: 3
     connection_structures: 2
     cmd_get: 0
     cmd_set: 10000
     get_hits: 0
     get_misses: 0 …

OurDelta builds of MySQL 5.0.77-d8 for Ubuntu 9.04 (Jaunty) builds are done, thanks to some smart and fast work by Peter. The packages are getting copied to the main site right now, and the mirrors should be up-to date within half a day or so.

PLEASE NOTE: I am currently reviewing and extending this document. While caring for a remarkable amount of MySQL server instances, troubleshooting becomes a common task. It might of interest for you which Recovering a crashed MySQL server After a server … Weiterlesen →

Adding An ODBC Driver For MySQL On Ubuntu

Sometimes you may find the need to develop cross platform applications which make use of a database. ODBC can be a solution to your portability needs, but unfortunately it is not as easy to set up an ODBC connection on Linux as it is on Windows. This tutorial attempts to shed some light on this process by guiding you towards adding an ODBC driver on Ubuntu. The process described below has been tested on Ubuntu 8.04 and Ubuntu 8.10.

Installing Nginx With PHP5 And MySQL Support On Ubuntu 8.10

Nginx (pronounced "engine x") is a free, open-source, high-performance HTTP server. Nginx is known for its stability, rich feature set, simple configuration, and low resource consumption. This tutorial shows how you can install Nginx on an Ubuntu 8.10 server with PHP5 support (through FastCGI) and MySQL support.

How To Back Up MySQL Databases With mylvmbackup On Ubuntu 8.10

mylvmbackup is a Perl script for quickly creating MySQL backups. It uses LVM's snapshot feature to do so. To perform a backup, mylvmbackup obtains a read lock on all tables and flushes all server caches to disk, creates a snapshot of the volume containing the MySQL data directory, and unlocks the tables again. This article shows how to use it on an Ubuntu 8.10 server.

How To Install And Configure Cherokee Web Server With PHP 5 And MySQL 5 Support On Ubuntu 8.10 Server (Intrepid Ibex)

This tutorial shows how to install Cherokee from source with PHP and MySQL support on a Ubuntu 8.10 server machine. The reason for compiling from source instead of using apt to install binary packages is that there are older versions in the repositories than the ones available on Cherokee's homepage. The main goal is to install the webserver so I didn't bother compiling everything else. That way you won't spend to much time on doing things I didn't want to describe.

Hello, there! With another Ubuntu release, it has come the time to update our series of posts on how to install Oracle 11g on Ubuntu. If you’ve been following, we’ve been publishing updated howtos since Ubuntu 7.04:

• Installing Oracle 11g on Ubuntu 8.04 Hardy Heron LTS
• Installing Oracle 11g on Ubuntu 7.10 Gutsy Gibbon
• Installing Oracle 11g on Ubuntu 7.04 Feisty Fawn

In fact, in this article I refer several times to previous posts regarding some configuration aspects and why I chose particular values. Also, note that this series of posts is a work in progress and we were able to improve this series with your help. So please do post comment below as …

VirtualBox is really nice, but if you’re like me, maybe you found the networking confusing. There are three ways to do it, as explained by the manual, and the best way is with host interfaces, which don’t have limitations like the inability to ping and so on. I found what I think is [...]