Thomas Koch

At YMC AG I'm working on a project to crawl and index a large amount of online content. The crawled data is feed into an index and queried for different specialized topics.

Now this project is already running since some months, the prospect is great and we're looking forward to enlarge our team and become even better. Continue reading "searching a colleague to hack on big data, crawling and search"

Have you already started to try out these new storage/database things commonly referred to as NoSQL? (For you google-bot, I'm talking about CouchDB, Cassandra, HBase, Hadoop, Hypertable, MongoDB, Tokyo Cabinet, etc). Well, it's one thing to install and use them but another to understand all the computer science background about them.
Therefor many developers around the world thought to make this summer a NoSQL summer. Local meetings are held in many cities: London, Los Angeles, New York, Paris, lake constance ...
If you like to meet for a beer and learn and discuss about some of the hottest stuff in computing, then come around! Please select the dates when you can join and the papers you'd like to discuss. You can subscribe to email announcements or ical and rss feeds at the lake constance nosql summer page.

I finally got punished today for using unstable without knowing enough about my system. Since I can't access my emails I'm hoping for help from planet-debian. Please excuse...

So the last words of my machine:

Loading, please wait...
  One or more specified logical volume(s) not found.
Unable to find LVM volume mylvm/root_crypt
  One or more specified logical volume(s) not found.
Unable to find LVM volume mylvm/swap_crypt
File descriptor 3 (/conf/conf.d/cryptroot) leaked on lvm invocation. Parent PID 
352: /bin/sh
udevd-work[77]: kernel-provided name 'dm-0' and NAME= 'mapper/mylvm-swap' 
disagree, please use SYMLINK+= or change the kernel to provide the proper name

_

Please, if you can help me, write a comment to this blogpost!
(Thank you, Hanno for borrowing me your laptop!)

update: It wasn't udev (this time). Sorry. The problem was, that I updated libdevmapper without also updating dmsetup. I could boot into an older kernel and solve this. A Bug against the LVM Debian package is already filled.