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March 15 2010

Visual Guide to NoSQL Systems - Nathan Hurst's Blog

There are so many NoSQL systems these days that it's hard to get a quick overview of the major trade-offs involved when evaluating relational and non-relational systems in non-single-server environments. I've developed this visual primer with quite a lot of help (see credits at the end), and it's still a work in progress, so let me know if you see anything misplaced or missing, and I'll fix it.

November 10 2009

August 06 2009

phpMyInventory - Home

phpMyInventory (PMI) is a web-based inventory program designed to keep track of all your systems, software and peripherals. "Systems" include: PCs, servers, laptops, network printers, etc. See the project page to download v2.81 or to read the change log. Some screenshots are available on the left. phpMyInventory requires PHP 4.0 or greater and MySQL, and runs on both Apache and IIS webservers. It includes a number of unique features, including: * A flexible permissions system. For example, you can give users the ability to only view PMI data, the ability to view and update that data, or the view to view, update, and delete data. * A software license tracker. You can specify whether software licenses are machine or user specific, and PMI will count how many licenses you have left. It will warn you when you drop to zero.

July 07 2009

MySQL Multi-Master Replication Manager in Launchpad

MMM (MySQL Master-Master Replication Manager) is a set of flexible scripts to perform monitoring/failover and management of MySQL Master-Master replication configurations (with only one node writable at any time). The toolset also has the ability to read balance standard master/slave configurations with any number of slaves, so you can use it to move virtual IP addresses around a group of servers depending on whether they are behind in replication. The current version of this software is stable, but the authors would appreciate any comments, suggestions, bug reports about this version to make it even better. Current version 2.0 development is led by Pascal Hofmann. If you require support, advice or assistance with deployment, please contact Percona or Open Query.

June 16 2009

PlentyOfFish Architecture | High Scalability

Update 3: POF now has 200 million images and serves 10,000 images served per second. They'll be moving to a 250,000 IOPS RamSan to handle the load. Also upgraded to a core database machine with 512 GB of RAM, 32 CPU’s, SQLServer 2008 and Windows 2008. Update 2: This seems to be a POF Peer1 love fest infomercial. It's pretty content free, but the production values are high. Lots of quirky sounds and fish swimming on the screen. Update: by Facebook standards Read/WriteWeb says POF is worth a cool one billion dollars. It helps to talk like Dr. Evil when saying it out loud. PlentyOfFish is a hugely popular on-line dating system slammed by over 45 million visitors a month and 30+ million hits a day (500 - 600 pages per second). But that's not the most interesting part of the story. All this is handled by one person, using a handful of servers, working a few hours a day, while making $6 million a year from Google ads. Jealous? I know I am.
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