That was fun: mysql update nuked remote access

Update your packages, they said. It will be more secure, they said. I guess it was. No network access to the databases. Even after turning the database server instance to listen again on the right port, I had to go in and redo the passwords and privileges. So yeah, this broke my MySQL instance for […]

An article on Rust language for astrophysical simulation

It is a short read, and you can find it on arxiv. They tackled an integration problem, basically using the code to perform a relatively simple trajectory calculation for a particular N-body problem. A few things lept out at me during my read. First, the example was fairly simplistic … a leapfrog integrator, and while […]

Brings a smile to my face … #BioIT #HPC accelerator

Way way back in the early aughts (2000’s), we had built a set of designs for an accelerator system to speed up things like BLAST, HMMer, and other codes. We were told that no one would buy such things, as the software layer was good enough and people didn’t want black boxes. This was part […]

A new #HPC project on github, nlytiq-base

Another itch I’ve been wanting to scratch for a very long time. I had internal versions of a small version of this for a while, but I wasn’t happy with them. The makefiles were brittle. The builds, while automated, would fail, quite often, for obscure reasons. And I want a platform to build upon, to […]

#Perl on the rise for #DevOps

Note: I do quite a bit of development in Perl, and have my own biases, so please do take this into consideration. It is one of many languages I use, but it is by and large, my current go-to language. I’ll discuss below. According to TIOBE (yeah, I know), Perl usage is on the rise. […]

Another itch scratched

So there you are, with many software RAIDs. You’ve been building and rebuilding them. And somewhere along the line, you lost track of which devices were which. So somehow you didn’t clean up the last build right, and you thought you had a hot spare … until you looked at /proc/mdstat … and said … […]

ClusterHQ dies

ClusterHQ is now dead. They were an early container play, building a number of tools around Docker/etc. for the space. Containers are a step between bare metal and VMs. FLocker (ClusterHQ’s product) is open source, and they were looking to monetize it in a different way (not on acquisition, but on support). In this space […]

So it seems Java is not free

This article on The Register indicates that Oracle is now working actively to monetize java use. Given the spate of java hacks over the years, and the decidedly non-free nature of the language, I suspect we are going to see replacement development language use skyrocket, as people develop in anything-but-Java going forward. Think about the […]

strace -p is your friend

So there I was, trying to use a serial port on a node which was connected to a serial port on a switch. Which I needed to properly configure the switch. So I light up minicom and get garbage. Great, a baud rate mismatch, easily fixed. Fix it. Connect again. I get the first 10-12 […]