Author Archives: tim

Reaction to CUPED article

Posted on May 17, 2025 by tim

On September 15, 2024, Craig Sexauer posted “CUPED Explained” where CUPED stands for Controlled-experiment Using Pre-Experiment Data, billed as “one of the most powerful algorithmic tools for increasing the speed and accuracy of experimentation programs.” Here is a list of … Continue reading →

Posted in Machine Learning | Comments Off

VT-D Very Annoying

Posted on May 16, 2025 by tim

I really love my HP Z820 Workstation. Two Xeon CPUs, 256GB of RAM. Runs VMWare. The fans scream like a banshee when it is powered up. However, when the power goes out (happens three+ times a year), it has the … Continue reading →

Posted in Computer Builds, Hardware | Comments Off

Fix for GraphQL testing

Posted on March 28, 2025 by tim

You are here because you are following the “Building a GraphQL service“, and specifically the testing section using GraphQlTest, and you keep getting a runtime error: The fix is in BookController, bookById: simply change “@Argument String id” to be “@Argument(“id”) … Continue reading →

Posted in Software Engineering | Comments Off

Fix for ‘remote-git’ is not a git command

Posted on March 13, 2025 by tim

Just documenting another weird error message. If you see Then, in your .git/config file, change this line: to this: and try your git command again.

Posted in Software Project | Comments Off

SSH path canonicalization failed

Posted on February 24, 2025 by tim

Yet another “change stuff just to change stuff” explanation and fix. Problem: you see “No such file” or “path canonicalization failed” after an scp command line that used to work correctly. Fix: add a “-O” argument to your “scp” command … Continue reading →

Posted in Software Project, Ubuntu | Comments Off

Fix for white label error in tutorial

Posted on January 22, 2025 by tim

For those of you who are following https://learnk8s.io/spring-boot-kubernetes-guide (from 2022) When you get the dreaded “Whitelabel Error Page” and you are pulling out your hair, here is your solution: The stack overflow: https://stackoverflow.com/questions/42330870/spring-boot-unable-to-resolve-freemarker-view (from 2020) Which points you to https://github.com/spring-projects/spring-boot/issues/15131 … Continue reading →

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Most Obvious AI Quote

Posted on January 3, 2025 by tim

… that argues reasoning models were most likely mimicking the data they saw in training rather than actually solving new problems. 2024-12-21, The Wall Street Journal, “The Next Great Leap in AI is behind schedule and crazy expensive” At least … Continue reading →

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Intel 14700K

Posted on March 12, 2024 by tim

This is a new computer build. Some facts on the CPU: it is currently #89 on PassMark [53,737] cpubenchmark.net, with a turbo speed of 5.6 GHz and TDP of 125W to 253W. It is 20 cores/28 threads, first seen Q4 … Continue reading →

Posted in Computer Builds | Comments Off

Better pattern for @Autowired

Posted on January 30, 2024 by tim

Just ran across this in a video about Spring Boot by Frank Moley and I thought it deserved a callout. When creating your Beans (e.g. Controller), you can either: @RestController() public class ItemController { @Autowired; private ItemService itemService; Or you … Continue reading →

Posted in Software Project, Uncategorized | Comments Off

Argo CD notes

Posted on November 7, 2023 by tim

Argo CD (github source) is a Continuous Delivery tool done “GitOps” style. Here, that means keeping all of your (Kubernetes) application definitions and configurations under source code control (git). Assuming you follow GitOps CI/CD best practices of separate repositories (one … Continue reading →