Category Archives: Architecture

Redundant Array of Independent Datacenters

I used a phrase last night/this morning that I use to refer to distributed datacenter architecture, and afterwards decided to google it. It seems that while Cisco mentioned it a lot in 2010, I beat them by a few years … Continue reading

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Dear MongoDB

Dear MongoDB, I would like to use the positional operators you have for updates, ala ‘user.$.name’, in the field selectors for queries, ala find({“user.name”: “Matt”},{“user.$.address”}) such that I can see only the fields of that sub-document/sub-object in my return data … Continue reading

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Congratulations Xen

Xen is now in the mainline kernel, where KVM has been since Feburary 2007. Xen is still a completely separate kernel, with completely separate interfaces. Xen may now be in Linux, but still is not Linux.

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SmartMenu

Case: Large menu system where different users use different items more often than others. Some spend 80% of their time in <5% of the options, some spend 60% of their time in the least used 10% of the options. Problem: … Continue reading

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A Perl Thread-Pool

UPDATED: 9/5/2013 to use better Thread::Queue::dequeue_timed in lieu of sleep. I’ve been doing a lot of large-system coding with Perl ithreads lately.  This thread model has been scaling very well on very high-throughput operations in conjunction with well-placed yield() calls … Continue reading

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Programming Philosophy

Ask three Computer Science geeks their “programming philosophy” and you’ll get four different answers. I don’t have a direct answer, as I borrow from different schools of thought, and simply have a handful of Canon. Canon of Simplicity Following the … Continue reading

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The Risk of Aircraft Navigation Modernization

We love technology. If you’re reading this, you at least can use a computer, possibly have an RSS reader, probably have an interest in geeky things, so I don’t need to go into proving that statement, methinks. One problem with … Continue reading

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The Next Five Years of Storage

[NOTE: This essay was commissioned by a client in December 2006. It’s the third in a series of old-yet-relevant position-papers whose exclusivity has expired, that I’m editing and posting. Things for the next five look “similar”. There is no formal … Continue reading

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The Next Five Years of Bandwidth

[NOTE: This essay was commissioned by a client in December 2006. It’s the second in a series of old-yet-relevant position-papers whose exclusivity has expired, that I’m editing and posting. Things for the next five look “similar”, yet scaled up in … Continue reading

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Disposable Appliance Computing

[NOTE: This essay was commissioned by a client in February 2007. It’s the first in a series of old-yet-relevant position-papers whose exclusivity has expired, that I’m editing and posting] The hosted systems industry has turned another critical point. Several years … Continue reading

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