UTOSC 2010 Day 1: TORQUE

Second class I unfortunately came in a little late, so I missed a few things (including a seat!), which is sad because it was a good presentation. Scott McQuay showed us TORQUE. It's a cluster resource manager, which is a fancy way to say that it handles distributing jobs to a cluster of computers. Overall I was impressed with it. The only weak point appears to be the scheduler where the default scheduler is naive and a more advanced one is proprietary only. And unfortunately I can't see anywhere that I could actually use this software, but it's a good one to keep in mind.

Miscellaneous Notes:

  • resource manager
  • pbs_mom - per-node daemon
  • pbs_server - master
  • qstat
  • pbs_sched - basic fifo scheduler
  • moab - commercial scheduler with more brains
  • set number of cpus per back-end
  • jobs can be wall time limited
  • dancer shell w/ public keys

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UTOSC 2010 Day 1: VMLB IP Load Balancer

First session of the day was about VMLB IP Load Balancer, presented by Clint Tinsley of Inductys. It's a formerly proprietary application whose development stopped in 2006. They're now looking to relaunch development and build it as Open Source. Overall sounds like an interesting project which could turn into something if the project works out. At this point it's not something I could actually use, unfortunately. I'll have to keep an eye on it.

Miscellaneous Notes:

  • project dormant since 2006
  • persistent connections to real server
  • designed for 2 interfaces
  • supports 4 interfaces
  • no vlan support
  • no snat support
  • mgmg ip separate from lb ip
  • layer 7 content type awareness
  • redundant controllers
  • support for ssl processor cards
  • http/https/ftp/imap/pop/ldap/smtp
  • roundrobin/weighted/least conn/src dst hash/expected delay/never queue
  • service checks
  • redhat/centos 3.0
  • uses ultra monkey - stopped dev in 2005 - or not?
  • snort built-in
  • built-in help system
  • und.cgi - management web app
  • ssl proxy for back-end http
  • real-time monitoring is missing
  • code release next week
  • source going in github (ossvmlb)
  • release on sourceforge
  • custom health checks? does basic alive (ping?). adding new ones might be hard.

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Utah Open Source Conference 2010

In just under two weeks I'll be presenting at the annual Utah Open Source Conference again. This will be my third year attending and presenting and as always I'm excited. The speakers are top notch and the presentations are not to be missed. This year I'll be covering Zenoss, which my company has recently rolled out for our internal monitoring system. If you've ever complained about your monitoring system, or the lack thereof, you will want to check this out.

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HDCP Key Compromised

As confirmed by Intel, the Blu-ray HDCP master key was leaked the other day. Anybody who is surprised has seriously deluded themselves. The whole concept of DRM is flawed, namely that you'll give people access to watch a video (or whatever) but not give them access to copy it. If you believe that, I'd like to sell you some water that's guaranteed not to get you wet.

One particular thing in the PCMag story stood out to me:

The code to unlock DVDs protected by the Content Scrambling System have been known for years, and are protected by the DVD-CCA, which has sued companies like RealNetworks and Kaleidescape that have attempted to market solutions that rip or store DVD content on a hard drive.

Take note that both RealNetworks and Kaleidescape were DVD-CCA members who paid their license fees and tried to follow the rules. Both were smacked down. This is not about preventing copyright infringement, as evidenced by a visit to any bittorrent site. It's all about preventing anybody from rocking the nice little boat they've got for themselves. It's the medieval guild system re-invented. Nuts to that.

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Summer Of Pie: Sour Cream Lemon

You might have been wondering where all the pies went. Don't fear as they are not gone for good. The memory card with all the pictures on it went on vacation to the coast (it took my wife and kids too), and with everybody gone I didn't feel up to eating an entire pie by myself. But now that they've returned, I'm back in full swing.

Just before they left I made this delicious pie. It was one of the pies listed on Shari's menu and it sounded intriguing, since sour cream isn't typically a dessert food. The recipe is fuzzy since it's been a while. Essentially what I made was a lemon curd with the addition of sour cream. I took the curd off the heat too soon and it didn't set up enough. Gun shy about curdling it I suppose.

The flavor was over-the-top lemony. Using fresh lemons helped there, I'm sure. It could have used a good bit more sugar though, as it was quite sour as well. The kids were not quite as thrilled by this one; the oldest even turned down a second piece. Just not in line with their sweet teeth, but I did enjoy it and my wife loved it. To each his own.

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Summer Of Pie: Frozen Oreo

I'm still waiting for local berries to come into season so I dug into the non-seasonal list and pulled out an idea for an ice cream pie. I made a simple crust using crushed Oreos. I followed my normal recipe for crust, 1 1/2 cups of crumbs plus 1/4 cup of melted butter, but skipped the 1/4 cup sugar since the cookies took care of that nicely. The crust worked out well, having a nice flavor and a nice crunch but was not crumbly.

For the filling I made vanilla ice cream, from scratch of course. My sister had gotten me a vanilla bean many moons ago. It seemed to have some flavor left, but I added some vanilla extract just to be safe. The big debate was whether to use egg yolks or not. In the end I opted to leave them out as I thought the bright white would look better. I was satisfied with the results.

The flavor was great. My wife came back around with this pie, having been burned out by the overly chocolate pie last go around. I wanted to make some caramel to drizzle on the plate and on top, but I lazied out. It would have been a nice addition I'm sure. This pie will certainly make a repeat in the future, but I might opt for store ice cream just to save time. It would be fun to try some different flavors.

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Why Chocolate Seizes

As a follow up to my previous post about Chocolate Fudge Overload Pie, I found out why chocolate seizes and why adding more water is a viable solution to recover. It's all about the emulsion of course. The short answer is that chocolate is a delicate balance between fat and water. When heated, it's easy to disrupt that balance with the addition of just a tiny bit of water and the sugar will crystallize. By adding more water the emulsion is reversed and balance is restored.

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Summer Of Pie: Chocolate Fudge Overload


For this pie I took a journey down chocolate lane. First I opted for a crumb crust. You've undoubtedly had pie with a graham cracker crust before, and that's fine, but as a wonderful chef taught me, crumb crusts can be much more interesting. We happened to have some store-bought cookies on hand (my son came home with them from school inexplicably a few days ago). Chocolate chip cookies to be precise. I ground them in my food processor and mixed them with some melted butter. The butter melted the chocolate and it turned into somewhat gooey mess. I added some graham cracker crumbs to crunch it up and make up a little volume since I was a little short with just the cookies. Baked it for 10 minutes at 375° and left it to cool for a few hours.

For the filling I set my sights on a chocolate mousse. I melted 11 ounces of dark chocolate in a double boiler and let it cool a little. In the mean time I whipped 1.5 cups of heavy cream with a tablespoon of sugar to stiff peaks. Following the standard procedure, I added 1/3 of the cream and beat it into the chocolate. There was a brief instance where the chocolate wanted to seize. I've done that before and it ain't pretty. Luckily it was on the verge and I whipped it fiercely until the chocolate recovered. Following that near miss I folded in the remaining cream and then dished it into the shell. Quickly I whisked it into the fridge to set up over night (couple of hours would have been fine).

The texture of the pie was excellent. The shell was a nice balance of sweet, salty and crumbly. It was maybe a little hard to cut through with a fork, so probably a little more graham cracker and less chocolate chip next time. The flavor of the chocolate was great but oh so rich. My tummy is still churning from eating a full slice. My wife opted for just a sliver and now I think she was on the right track. There was just too much chocolate and not enough cream. I was worried that it would be too light, too airy but those fears were very much unfounded. Probably should have gone for the egg whites as well.

Luckily the kids have stomachs of steel and have promised to polish off the remainder for us. What a surprise!

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Amano 'Guess The Origin' Contest

A friend pointed me to an awesome contest that is going on right now to guess the origin of the next chocolate being developed by Amano Chocolate. I bought a couple of their bars way back and they were excellent. Unfortunately it's a little expensive for my sweet tooth so I haven't had a chance to try any of their others. If you like excellent chocolate, I recommend you mosey on over and give it a guess.

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Summer Of Pie: Triple Berry Attack

On a recent trip to Sheri's I was glancing through the pie selection and realized that a) I don't make nearly enough pie and b) all their pies seemed simple enough that I could do them on my own. I could possibly be wrong about the latter, but certainly not about the former. And so begins the Summer Of Pie, wherein I will make many pies all through the summer and document the process here. The rules are that it has to be made of good ingredients and I can't directly follow a recipe. Referencing recipes is OK, but the final creation must be my own.

First up was what I call the Triple Berry Attack. I had some canned blueberries, some frozen blackberries from last fall and I bought a pint of strawberries. Nothing else is really in season yet.

The problem with blackberries is the seeds, so I cooked them down with the blueberry syrup and strained out the pulp. I added lemon juice and sugar to taste, then thickened with tapioca flour. I was worried that it would thicken too much but it was just about right, and without any off flavors.

At the last minute I added the blueberries and diced strawberries, mixed quickly and then dumped into an uncooked pie shell. Baked for about 30 minutes at 400°. The hardest part was waiting until the next day to taste. Had I known how good it would taste, the wait would have been even harder. It was not too sweet, a problem that many sweets have these days. The flavors balanced well and the syrup was just runny enough.

A great start to what is sure to be a great summer.

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