Andrey Goncharov

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Immigration in IT: Choosing your new home objectively

Oct 26, 202034 min read

So, you have decided to move your ass someplace else, seeking a better life. The whole world is at your feet, but "the whole world" is not a specific place where you can be. You have to choose, if not a city, at least a country. Nowadays, there are p...

How to display a gazillion of metrics and keep your sanity

Aug 26, 202026 min read

Large scale equals distributed. Distributed equals inevitable complexity. Complexity at runtime equals extensive monitoring. At Hazelcast, doing distributed systems well is our bread and butter. It means we have no choice but to be huge fans of colle...

React: Lifting state up is killing your app

Sep 7, 201916 min read

Have you heard about "lifting state up"? I guess you have and that's the exact reason why you're here. How could it be possible that one of the 12 main concepts listed in React official documentation might lead to poor performance? Within this articl...

node-config made type-safe

Apr 12, 20194 min read

node-config has been serving the Node.js community as pretty much the default config solution for many years. Its simplistic, yet powerful design helped it to spread like a virus across multiple JS libraries. Yet those very design choices don't alway...

NodeJS logging made easy

Apr 7, 20199 min read

How many times did you write logger.info('ServiceName.methodName.') and logger.info('ServiceName.methodName -> done.') for each and every method of your service you wanted to log? Would you like it to be automated and has the same constant signature ...

NodeJS logging made right

Feb 26, 20198 min read

What's nagging you the most when you think about logging in NodeJS? If you ask me I'm gonna say lack of of industry standards for creating trace IDs. Within this article we'll overview how we can create these trace IDs (meaning we're going to briefly...