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Apache Kafka – 8 things to check before going live (ariskk.com)
13 points by ariskk 2048 days ago
1 comments

"Ensure all producers are using the same partitioner"

Great point. I have spent hours debugging an issue where messages seemed to be out of order for no good reason. The issue turned out to be a difference in partitioners.

Debugging those issues always seems like a Sherlock Holmes episode to me. Especially when errors are logical and more specifically in this case hidden in an upstream dependency!
getting the hash right is key