— 7 min read
#messaging #java #kafka
#messaging #java #kafka
This post will highlight some practical aspects of using kafka transactions. I will not dive deep into theory on how Kafka transactions are implemented. Instead, let’s discuss main “gotchas” someone could encounter when trying to use Kafka transactions in production first time.
— 5 min read
#core java #java
#core java #java
This article is inspired by Monty-Hall problem/paradox. Now I found this paradox disturbing initially (this is why it’s paradox, wink…), and decided to quickly model it to validate for myself. That brought idea of writing up all I know about Java Random API in this article.
— 1 min read
This is totally random write-up and it made it here because it inspired post about Java Random number generation. Here is how it goes…
— 5 min read
#kafka #messaging #low latency
#kafka #messaging #low latency
Most developers I talk to about Kafka agree on a catchphrase “Kafka is designed for throughput”. That’s fair and you can find plenty of benchmarks that show 700k/s throughput for single producer without replication. But does that mean we should discard Kafka when talking about low latency messaging?
After quick googling I found this outdated SO question. That question is very old and includes very old version of Kafka (0.7.2 whereas current version is 2.0.0) and also this article states that very decent latencies (2-3ms 99 percentile) are achievable. Having such controversial info is not enough to make final decision so I decided to create a little benchmark myself, to finally conclude whether Kafka is good for low-latency applications.