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Ruby-Kafka, async_producer and large messages - buffer overflow issue

Dec 22, 20194 min read

Waiting for a new project (I am so excited about a new one!) is a good time to go back to recent problems. (Un)fortunately some time ago me and my...

Ruby-Kafka, async_producer and large messages - buffer overflow issue

Threads in Ruby - when does it make sense?

Aug 20, 20192 min read

CRuby has a Global Lock Interpreter, that imposes certain limitations on us. I wrote about it a bit in my previous article. But does this means that...

Threads in Ruby - when does it make sense?

K-Nearest neighbors algorithm - the first step to Machine Learning?

Apr 16, 20196 min read

Machine Learning is like a magic word now - for sure you have heard something cool about it, a lot of developers tried to build some models using...

K-Nearest neighbors algorithm - the first step to Machine Learning?

We are looking for the shortest route from London to Warsaw in Ruby

Apr 9, 20194 min read

I thought that it could be good excercise to write script that will use graphs to find "cheapest way" using some algorithm. I know that there are...

We are looking for the shortest route from London to Warsaw in Ruby

Quick class preview from rails console

Apr 7, 20191 min read

One think I really like in Rubymine is that it knows where are classes are and thanks to that we can move to them with one click. After moving to VIM...

Quick class preview from rails console

ActiveRecord find_or_create_by and concurrency - how to handle it?

Mar 17, 20196 min read

ActiveRecord provides a bunch of useful methods. One of them is a find_or_create_by which is cool, because it avoids using IF...