Monthly Archives: February 2008
Twitter architecture
A bit that caught my attention is the mention of ejabberd. I’ve always been a big fan of erlang for 3 main reasons: a message-passing interface, its hot code upgrades and its making time an explicit and operational part of … Continue reading
Video on Hadoop from Yahoo!
http://us.dl1.yimg.com/download.yahoo.com/dl/ydn/hadoop.m4v Key points: cpu, ram size, i/o bandwidth increase exponentially; hard drive seek times do not. Relational databases and their b-tree datastructures require ln(n) seeks as a crude simplification. Sort/Merge algorithms working on flat files operate as function of the … Continue reading
Another interesting eBay architecture presentation
http://www.infoq.com/presentations/shoup-ebay-architectural-principles
twiki is great… twiki is not so great.
To organize our internal IT information we have been using twiki. It is a very flexible tool by virtue of being a wiki and has two critical features out of the box that other wikis seem to lack: Forms and … Continue reading
“If you see something, say something…”
My team is in the process of evaluating a number of monitoring packages for our development and production environments. So far we have mostly used gum and duct tape ^H^H^H a combination of mon, monit, zenoss, PRTG to get alerted … Continue reading
