RabbitMQ-Stomp plugin with Spring Stomp drains memory

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I’m facing a memory issue for stomp RabbitMQ Pluging used with Java Spring Stomp application.
This is a cluster of 2 servers, but just one seems to have memory issue.

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Now I move the pointer to the other server only, then this server is idle and this is the current memory usage:

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And this is the VM HTOP response

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Do you have any idea why memory usage is so high even without current connections?

The queues count is 119225 and it looks very hight too me. I don’t know exactly how RabbitMQ Stomp plugin handles the queues but I’m wondering if queues should be cleared every now and then…
Is it possibile there are a connection release issue or queue cancellation issue by stomp plugin?

These are my versions:
Ubuntu server 22.04.4
RabbitMQ 3.13.3
Erlang 26.2.5.1

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