Events Don’t Eliminate Dependencies
Event (or message) driven systems (in their two flavors) have some benefits. I’ve already discussed why I think they are overused. But that’s not what I’m going to write aboutContinue reading
Government Abandonware
Governments order software for their allegedly very specific needs. And the EU government (The European Commission) orders “visionary” software that will supposedly one day be used by many member statesContinue reading
Tomcat’s Default Connector(s)
Tomcat has a couple of connectors to choose from. I’ll leave aside the APR connector, and focus on the BIO and NIO. The BIO connector (blocking I/O) is blocking –Continue reading
Blue-Green Deployment With a Single Database
A blue-green deployment is a way to have incremental updates to your production stack without downtime and without any complexity for properly handling rolling updates (including the rollback functionality) IContinue reading
Optional Dependencies
Sometimes a library you are writing may have optional dependencies. E.g. “if apache http client is on the classpath, use it; otherwise – fallback to HttpURLConnection”. Why would you doContinue reading
AWS “Noisiness”
You may be familiar with the “noisy neighbour” problem with virtualization – someone else’s instances on the same physical machine “steals” CPU from your instance. I won’t be giving cluesContinue reading
Log Collection With Graylog on AWS
Log collection is essential to properly analyzing issues in production. An interface to search and be notified about exceptions on all your servers is a must. Well, if you haveContinue reading
Should We Look For a PRISM Alternative?
I just watched Citizen Four, and that made me think again about mass surveillance. And it’s complicated. I would like to leave aside the US foreign policy (where I agreeContinue reading
The Precious Feature Design Meetings
As we know, meetings is where work goes to die. Discussion about the point of meetings aside, there is one type of meetings that I love. It has many names,Continue reading
KISS With Essential Complexity
Accidental complexity, in a broader sense, is the complexity that developers add to their code and that is not necessary for the code to work. That may include overengineering, overuseContinue reading