An opinionated list of Python frameworks, libraries, tools, and resources
If you have ever run DESCRIBE HISTORY on a Delta table that receives streaming data every 60 seconds and watched it either hang for hours or crash with an OutOfMemoryError, you are not alone and you are not doing anything wrong. The problem is architectural, and once you understand the internals, the fix becomes a lot clearer. Here is what I learned after digging into why this happens and what you
In August 2025, a user reported that Apache Kafka v3.9.0 dropped consumer throughput by 10x. Other users reproduced it. The culprit was a configuration called min.insync.replicas, and the fix was three lines of code. Sharad Garg opened a ticket titled "Consumer throughput drops by 10 times with Kafka v3.9.0 in ZK mode." Ritvik Gupta ran controlled tests and traced the issue to min.insync.replicas.