It’s been so long, I had to look up the number. It is gloomy and chilly today. What better time to bake cookies! The Laird has been buying Artisan Kettle dairy free chocolate chunks for our kibble. Is anyone surprised that there is a chocolate chunk cookie recipe on the back? Artisan Kettle Extra DarkContinue reading “Learning 2 Bake – from Scratch XVII”
Author Archives: Mark
Social Praxis?!?
Who uses such expressions? Because they are screaming about Kyle Rittenhouse, I heard about MEChA (Movimiento Estudiantil Chicanx de Aztlán). I was curious, so I looked them up. I don’t recommend it. Their website is a word salad nearly devoid of meaning. As an example, using a sentence that actually parses:MEChA chapters are often theContinue reading “Social Praxis?!?”
Booster Lifetime
The SLS is at risk of another delay. Apparently, once stacked, solid rocket boosters have a limited lifetime and NASA will soon be running up against it. I have no idea why, so I asked. Just a comment tracking post so I don’t forget to go back and see if anyone answered.
ZooKeeper Up
Was that a nightmare. They refused to talk to each other. It would have been easier if I had had any confidence in the VM network, but since I didn’t know if that was failing or not, there were many more variables. The answer was simple, but “simple” does not mean “easy”. There are fiveContinue reading “ZooKeeper Up”
Python Adventures
I cheated. I’m running Cassandra 3.11 in docker containers. The shell (cqlsh) is a Python script that runs fine in docker, if you can figure out how: I want cross-VM access, so I need to run it outside of docker. I haven’t figured out how to give Virtual Box VMs DNS names, so I usedContinue reading “Python Adventures”
Zoo & Book Up
Wow. That was harder than Cassandra and I still haven’t started on Pulsar. A few notes: ZooKeeper needs persistent volumes. BookKeeper expects some metadata to be there. If you don’t persist it, you end up with race conditions when they start (as each one tries to bootstrap the metadata). Get the right image from dockerhub.Continue reading “Zoo & Book Up”
Distributed Systems & Failure
I have a three node Cassandra cluster running. It’s three containers on one virtual machine. Pulsar is next. I decided on a new virtual machine from the same base image the Cassandra one started from. That way, it’s free of any “Cassandra pollution”. And I have been taking notes, so I know what I didContinue reading “Distributed Systems & Failure”
Cassandra Up
I’ve always thought “Cassandra” was a particularly ill-omened name, so I went with the picture, not the logo. Subtitle: How did I function before the Internet? It was a bit painful, but I did it. A three node Cassandra cluster configured in docker-compose inside a CentOS VM running on Windows 10. The volume configuration isContinue reading “Cassandra Up”
HOAs
Want to guess where the HOA boundary ends? To be fair, I also have a beige house.
O Deer
I knew I should have bought a K-bar when they were on sale at Amazon. But, no, I think to myself, I think, “whatever would I use it for?”
Marked Up 