RabbitMQ: Users realize one of the node has more File descriptors in the cluster uses quorum queue

Products

• VMware Tanzu Data Suite
• RabbitMQ
• VMware Tanzu RabbitMQ

Issue/Introduction

Users realize one of the node has more File descriptors in the cluster uses quorum queue. The difference is significant and noticeable. Example observation in the management UI: 

Environment

RabbitMQ: 4.1.x through prior to 4.1.3

Cause

There is a particular code path in Ra that had a potential file handle leak. It rarely occurs. 

The key logs would see in the node can be: 

...... term mismatch - follower had entry at #### with term ......

Resolution

Upgrade the cluster to 4.1.3.

Additional Information

https://github.com/rabbitmq/rabbitmq-server/pull/14252