Archive for Debian

Switching to Gentoo…

…no, just kidding! But I almost feel like it, after spending the last few days backporting gtk+2.0 (and the relative dependencies) from sid to etch, in order to build the newest xchat… and now I could tackle gimp… :D (ok, maybe I should just switch my laptop to lenny or sid… but for now running etch plus a few backports has worked fine… we’ll just have to see how many is “a few”).

BTW should I upload all this to bpo (now or when the packages hit lenny)? On one side it might be nice… On the other, it’s definitely *a lot* of packages and dependencies… Maybe it’s slightly out of their scope…

Posted by ultrotter on December 23rd, 2007

LISA: done!

LISA’07 is over, and just concluded with a great talk about “Cooking at the Keyboard”, which of course I liked a lot, being this one of my favorite hobbies!

This was my first LISA conference, and I had an all-round experience, giving an invited talk, hosting a BoF and speaking during the Hit The Ground Running track. Of those three the most fun has been the HTGR talk, in which I quickly summarized the Ganeti platform in 10′ and was able to answer a few questions in the last 5′. I definitely liked giving the invited talk, and I think the idea my teammates had to not just talk but actually give a live demo of our platform was very successful, even if it took some time and effort to prepare. The BoF was nice because it gave people chance to give more feedback and to talk about their ideas, it’s probably the session I learned more from. The slides for the talk are on the conference page, and the ones for HTGR will be soon!

Globally it’s been a very intense week of talks, sessions, hallway chats, work and fun, and I definitely hope to be at LISA’08, next November in San Diego (it’s a bit like going back home, isnt it?)! I’m really glad to have come and want really to thank all the people who made this possible and all the people I met here, who made this event so good!

Posted by ultrotter on November 17th, 2007

Ganeti

Just a couple of days ago we finally opensourced Ganeti, a cluster virtualization platform based on Xen. In the last few months I joined the Ganeti team, which is based in Zurich, and worked with them on the development of this software! I’m really happy now to be able to share the result of what we’ve been doing with the rest of the world!

For more information you can have a look at the project page! Of course an ITP has been filled! (ok, actually two because I didn’t notice someone in my team had already done one!)

PS I’m away for the weekend, forgot my charger and am running out of battery! I’ll be back online on monday, I guess! :)

Posted by ultrotter on September 1st, 2007

LISA, I’m coming! :)

It’s official: I will be representing my team at USENIX’s 21st Large Installation System Administration Conference (LISA) in Dallas (TX), speaking about the project we’re working on!

My talk will be on Thursday 15th November! Check out the program: http://www.usenix.org/events/lisa07/tech/#thursday

Wow, I’m so happy! :)

Posted by ultrotter on August 22nd, 2007

Racconto catastrofico/Catastrophic novel

Oggi mi e` stato passato il link a questo raccontino di fantascienza catastrofica… E` carino, scritto bene, tecnicamente preciso (cosa rara oggigiorno). E` anche decisamente intenso, specie in alcuni punti… Mi ha lasciato un po’ sotto shock, devo dire… Se vi va provate a leggerlo!

Today I received a link to this catastrophic sci-fi short novel story… It’s nice, well written, and technically precise (which doesn’t happen so often). It’s also a bit shocking at points, and has definitely hit me a bit… Try to read it, if you want!

http://baens-universe.com/articles/When_Sysadmins_Ruled_the_Earth

Posted by ultrotter on July 12th, 2007

Work life… :) (ed e` tutto piratissimo…)

Foto by conall, during last friday’s Eng Crawl!

And this is the debian kilt, worn in the office! :)

Posted by ultrotter on July 2nd, 2007

Real Life Race Condition

When one studies Race Conditions in Operating Systems they tend to seem some weird computer problem, maybe even a hard one to understand… Yesterday I had the proof they’re actually a real life issue!

Our office in zurich has a form to order dinner online, to be filled in before 5pm, which I did, just after my colleague, one minute before 5 or so. The system got my order and accepted it. It also sent me mails to remember to fetch the food except… there was none! It seems like my pizza got caught in a race condition between the actual ordering and the official closing of the web form. (My collegue’s food was delivered normally )

Race conditions seem to be much more real when what gets lost is your dinner! (Well, I managed to eat anyway, later, luckily!)

Posted by ultrotter on January 18th, 2007

Feed readers

By reading Planet Debian through a feed reader (my choice is for liferea) I almost missed everybody being upside down… Luckily I noticed it in time! :)

Posted by ultrotter on April 2nd, 2006

Graduation

At last, it’s graduation day! I hope everything will be ok! Going to defend my xen thesis in a hour and a half! :)

Posted by ultrotter on March 23rd, 2006

SSH control connections

After a lot of people blogged or talked about them in various places I decided, some months ago, to try the magic of

ControlMaster auto
ControlPath ~/.ssh/ssh_control_%h_%p_%r

After a couple of months, however, I had to renounce to that setting, at least temporarily, because it broke my ability to work on svn.debian.org… here is what happens when I start working with the repository svn+ssh://svn.debian.org/pkg-xen/

ultrotter@tie:~/debian/xen/trunk$ svn up
At revision 61.
ultrotter@tie:~/debian/xen/trunk$ svn up
Control socket connect(/home/ultrotter/.ssh/ssh_control_svn.debian.org_22_ultrotter): Connection refused
ControlSocket /home/ultrotter/.ssh/ssh_control_svn.debian.org_22_ultrotter already exists
svn: Connection closed unexpectedly

As you can see the first svn operation goes through, but the control file is left behind, causing any other command that connects to the repository to fail, until I delete the file! Anyone has a solution for that? For now I just disabled the setting, even though I liked it for the rest of its effects! :)

Guido

Posted by ultrotter on February 27th, 2006

The Rosetta Stone (and the failure of watermarking)

An interesting article on why watermarking tecniques for DRM are not likely to succeed!

Posted by ultrotter on February 25th, 2006

Great discovery!


Your Inner European is Italian!


Passionate and colorful.You show the world what culture really is.

I usually refrain from publishing test results, but this time I couldn’t resist, since the result was kind of interesting: it seems in fact that my inner european is Italian… Of course I’m actually Italian, so that may have something to do with it! ;)

Update: It seems me and Christian are similar: Answering the european test with reverted answers as he does the result is the same: I’m definitely not spanish too… Probably because of my allergy to dances and too-loud parties! :)

Posted by ultrotter on January 13th, 2006

Strange planet behaviour

On my ‘technology behaving weirdly’ series:

As many other people I flooded planet debian with some old posts by upgrading to wordpress 2.0! The first strange thing is that of all my posts only the first two that ever appeared on the planet were showed again as new. The second one is that no flooding happened happened on QuaQuaPlanet, which is another installation of planet I use with some Italian friends…

Posted by ultrotter on January 4th, 2006

Missing my leap second…

All these people reporting that their kernel added a leap second and reported that in the log, and I couldn’t find the message on my systems… (Well, I could check just a couple of them since I’m on vacation and I only have a slow dialup) That’s weird… I wonder why!

Posted by ultrotter on January 1st, 2006

linner or…

Andrew, with your “linner” you reminded me of last year, when I was abroad, and I used sometimes when I was too busy to have “brunner”, which I defined as a fusion of all the three meals (BReakfast + lUNch + dinNER)! :)

Oh, Happy Holidays to everybody!

Posted by ultrotter on December 26th, 2005