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Range Repairs: Step-by-Step
It’s been a long time since I was able to run a repair on my Cassandra cluster. Basically since I went to 1.2, it just hasn’t been possible. And since repairs in Cassandra are pretty much a requirement to normal operation, this is clearly a problem. So in order to deal with the disarray that…
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Adding Features to NSQ
After being a fairly heavy user of NSQ over the past year or so and finding that it was missing a few features, I decided to jump in and try to add them myself. The only issue was that I didn’t know Go. Since something as simple as not knowing the language the application was…
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Learning to Hardware Hack at RobotsConf
I’ve been a programmer (if you can call me that) for quite a few years now. But for the most part, it’s really always been about designing software based systems. Even though these systems are larger than the average startup or SaaS company would get to work with, it’s (as I said) still about designing…
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Adding Cross Zone Load Balancing in AWS
One of the new hotness features that Amazon added to their Elastic Load Balancers is cross zone load balancing. This offers the ability to have an unbalanced number of nodes per availability zone within an Amazon region. For instance, if you were load balances across us-east-1a, us-east-1b, and us-east-1c, then you needed to have the…
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Redis Setup Notes and One-Liners
Being a heavy user of Redis has forced some weird Bash-fu and other commands when I want to find out how things are going. Because Redis is single threaded (see here for more information), I commonly run multiple Redis instances per machine. As a result, when running on AWS, I use a specific machine layout…
