Rake tasks to help you with family photos

Yesterday while I tried once again to download photos from my camera with digikam, it gave me a SIGABRT crash, I'm using kde 4.1.3, so I tried to build new deb package for digikam 0.10.beta6 and I did not succeed, many kde dependencies and I could not want to break my installation.

So as quick solution I wrote a small Rakefile to help me download photos from my camera and arrange them in folders by photo date (Like I used digikam). I want to share this rake tasks, maybe it will save time to other people. Currently it only support jpeg files. Bonus: it can rotate photos based on exif information related photo information.

rake ph:get      # Get photos from camera to current folder
rake ph:delete   # Delete all photos from camera
rake ph:arrange  # Arrange photos in folders by date
rake ph:rotate   # Rotate photos from exif info
rake ph:list     # Show photos info

Here is a source code: http://gist.github.com/30716

Apache process hangs in memory with mode operation L.

I have a heavy loaded website with 12req/second and I use apache 2.2.6 with mpm_event_module, because threaded and prefork modules suck already. Apache server with 5 mongrels in cluster: 3 on the same server and 2 remote. MYSQL is also remote. Memcached runs on the same server. NFSD also running. Below is apache tuning for mpm_event module:

StartServers 1
MaxClients 150
MinSpareThreads 15
MaxSpareThreads 25
ThreadsPerChild 25
MaxRequestsPerChild 0
It works great, with some exceptions: some apache processes hangs in memory with mode operation L (logging request to disk)
Mod status says that pid 31159 hangs for 1278 seconds (20 minutes) and it wastes system resources, making website to load slower. I had to kill hanging processes manually for some time, but in last weekend I wrote a simple ruby script that use hpricot gem to parse mod status and detect hanging processes wit h status L, then it kill them. I put it in a cron job to run every 10 minutes and i forget about the problems.