Recent Articles
Creating a Java REPL Playground in Docker
Jul 3, 2022 · 3 min read
It's helpful to have local throwaway environments for testing code snippets, and creating one for Java is a snap with Docker.
Deferrable Constraints in PostgreSQL
Jun 20, 2022 · 9 min read
Constraints in PostgreSQL are validated immediately row-by-row by default, which might be confusing when updating multiple values in columns that have a uniqueness constraint.
Investigating Locks in MySQL
Jun 17, 2022 · 8 min read
Locking is an important part of an ACID-compliant database, but excessive locks can lead to performance degradation. Here are some strategies for investigating locks in MySQL.
Avoiding Blanket Statements
May 6, 2022 · 6 min read
One part of emotional intelligence is understanding how our words impact others.
Inner vs. Outer Joins
Apr 29, 2022 · 7 min read
They can't be used interchangeably, and the differences are important.
Creating a MySQL REPL Playground in Docker
Apr 27, 2022 · 4 min read
It's helpful to have local throwaway environments for rapid development, especially with databases, and creating one for MySQL is a snap with Docker.
Creating a PostgreSQL REPL Playground in Docker
Apr 27, 2022 · 3 min read
It's helpful to have local throwaway environments for rapid development, especially with databases, and creating one for PostgreSQL is a snap with Docker.
Creating a Gremlin REPL Playground in Docker
Apr 22, 2022 · 4 min read
Apache TinkerPop's Gremlin graph traversal language can be confusing to learn, but thankfully TinkerPop provides some "toy" graphs perfect to learn with.
Types of Probes in Kubernetes
Feb 19, 2022 · 4 min read
It's tempting to use the same health check endpoint for multiple probes in Kubernetes, but the kubelet uses each probe for very different purposes.
Writing Meaningful Health Check Endpoints
Feb 14, 2022 · 6 min read
If your health check endpoints return a hard-coded response then you don't actually know the health of your service.
Retrospective Techniques
Feb 4, 2022 · 7 min read
Retrospectives need to be productive and engaging or participants will quickly tune them out. Here are some techniques to hold more interesting retros.
Patterns for Structuring a Unit Test
Feb 3, 2022 · 6 min read
Unit tests should be testing acceptance criteria, not internal behavior. Here are some patterns to help accomplish that.