Sunday, February 24, 2008

We are moving to a new flat

Finally, we are moving to our new flat. After several months of demolition, reconstruction and renovation we are looking forward to a bigger flat with better view. I have also moved my paintings and easel today as well. I am sure neighbours cannot wait until they hear me practicing my trombone...

Tuesday, February 19, 2008

Hadoop - Large Yahoo! cluster

Yahoo!'s bet on Hadoop framework proves to be a good choice. They started using Hadoop in their production environment and every web search query is now using data which is processed on very large Hadoop cluster. You can find more details on Yahoo! Developer Network: Yahoo! Launches World's Largest Hadoop Production Application.

Some highlights:
  • Number of links between pages in the index: roughly 1 trillion links
  • Size of output: over 300 TB, compressed
  • Number of cores used to run a single Map-Reduce job: over 10,000
  • Raw disk used in the production cluster: over 5 Petabytes
  • Hadoop has allowed us to run the identical processing we ran pre-Hadoop on the same cluster in 66% of the time our previous system took. It does that while simplifying administration.
I think this is quite impressive. Considering that Hadoop is open source software in early stage of development written in Java could this be the real reason why Microsoft want to buy Yahoo!? :-)

Update - added few more links:
Jeremy Zawodny blog (Yahoo!) http://jeremy.zawodny.com/blog/archives/009992.html
Interview with Doug Cutting (InfoQ) http://www.infoq.com/articles/hadoop-interview

Wednesday, February 13, 2008

Is Linux too expensive for corporate desktop?

Normally I don't care about regular Windows patches and updates. It is not that I don't care about security but I enjoy the luxury of our corporate IT team installing those updates for us (most of the time this activity starts while I am most busy and need to finish some important task). Today I read that Microsoft is going to release a huge patch for Windows. Especially the security issue with WebDAV Mini-Redirector really got me...

I still wonder why Linux is not considered an alternative desktop system for our corporate ecosystem.

Saturday, February 9, 2008

Google takes Czech internet market seriously

According to this post Google is going to take Czech internet market even more seriously very soon.