Tue, 29 Apr 2014
The Grand C++ Error Explosion Competition
The daily ROTFL: if anybody still considers C++ being a sane language, look at this: http://tgceec.tumblr.com/.
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Sat, 26 Apr 2014
Datacenter Power
As some of you may know, I am on a long detour from programming and system administration to the area of civil and electrical engineering, building supervision and datacenter design. Hopefully this detour is nearing to its end, as our new faculty building with its datacenter is almost ready.
I would like to share some photos of our infrastructure. Here are photos from our power distribution room (image labels are in Czech only, sorry):
And here is the image gallery from our UPS room and its service area. We use Dynamic UPS (DUPS), which does not maintain its backup power in the lead cells, but instead uses a huge flywheel, which allows to bridge the short gap between the power outage and start of a diesel engine:
More to come in the CVT FI blog, available to those who have access credentials to IS MU.
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Fri, 25 Apr 2014
Buzzword Bingo
And the winner of today's Buzzword Bingo is ...
"Project Atomic integrates the tools and patterns of container-based application and service deployment with trusted operating system platforms to deliver an end-to-end hosting architecture that's modern, reliable and secure."
There is even the word "cloud" mentioned somewhere in their home page. I wonder what has happened to hackers and computer enthusiasts, when they are able and willing to put such a crap in their home pages. Apparently, the translation of the above is something like "We can run Docker applications under SElinux."
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dan wrote:
Agreed, but it's not that bad yet. Try to beat this :-): "The first of its kind to support IT's needs for data governance, security and oversight, and business users' desire for self-service discovery."
Yenya wrote: Re: dan
ROTFL
MartinK wrote:
Actually IIRC project Atomic (which is a fancy name for the underlying rpm-ostree project/tool) does atomic OS updates/deployments. You can install an update on your testing server, see if everything works and then generate an ostree delta. Then you can deploy the delta to your ostree using machines and atomically switch to the updated OS state (and back if you don't like it after all). This could work quite nicely for updating Docker containers. But indeed, it is not really apparent how the thing works from the default description.