# rabbitmq-tls-configuration

Published articles for rabbitmq-tls-configuration.

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## How a RabbitMQ TLS mismatch burned one CPU core before AMQP negotiation

DevFeed: [How a RabbitMQ TLS mismatch burned one CPU core before AMQP negotiation](<https://devfeed.tech/articles/how-a-rabbitmq-tls-mismatch-burned-one-cpu-core-before-amqp-negotiation-60584.md>)

Original publisher: [Read original article](<https://hackernoon.com/how-a-rabbitmq-tls-mismatch-burned-one-cpu-core-before-amqp-negotiation?source=rss>)

Author: Ahmed Tariq

Published: 2026-09-27T12:27:00Z

Content type: article

Language: en

Sources: [HackerNoon](<https://devfeed.tech/sources/hackernoon.md>)

Topics: [RabbitMQ](<https://devfeed.tech/topics/rabbitmq.md>), [TLS (Transport Layer Security)](<https://devfeed.tech/topics/tls.md>)

Tags: [aks](<https://devfeed.tech/tags/aks.md>), [aks-rabbitmq-connection](<https://devfeed.tech/tags/aks-rabbitmq-connection.md>), [backend](<https://devfeed.tech/tags/backend.md>), [kubernetes-net-cpu](<https://devfeed.tech/tags/kubernetes-net-cpu.md>), [kubernetes-protocol-debugging](<https://devfeed.tech/tags/kubernetes-protocol-debugging.md>), [net](<https://devfeed.tech/tags/net.md>), [net-async-void-startup](<https://devfeed.tech/tags/net-async-void-startup.md>), [net-cpu-throttling](<https://devfeed.tech/tags/net-cpu-throttling.md>), [production](<https://devfeed.tech/tags/production.md>), [rabbitmq](<https://devfeed.tech/tags/rabbitmq.md>), [rabbitmq-tls-configuration](<https://devfeed.tech/tags/rabbitmq-tls-configuration.md>), [tls](<https://devfeed.tech/tags/tls.md>), [tls-configuration-error](<https://devfeed.tech/tags/tls-configuration-error.md>), [tls-troubleshooting](<https://devfeed.tech/tags/tls-troubleshooting.md>)

### AI overview

A production incident pinned a .NET thread to a CPU core while services attempted plaintext connections to a TLS-only RabbitMQ listener. The investigation traced the mismatch to omitted AMQP TLS configuration and an older framework package that did not pass the setting to the connection factory. The article describes separating CPU behavior, network reachability, protocol negotiation, and startup tests, with seven bytes on the wire revealing the fault.

### Source excerpt

A production RabbitMQ TLS mismatch pinned one .NET thread to a CPU core. Seven bytes on the wire exposed the real fault.