RabbitMQ 3.6.12 with memory leak?

[Peter Ko]

We’re running a RabbitMQ cluster ("rabbitmq-server-3.6.12-1.el7" and "erlang 19.3”) with 5 nodes which runs on "CentOS Linux release 7.3".

We had an issue with RabbitMQ about two months ago. So we've upgraded our version of RabbitMQ from 3.6.10 to 3.6.12.

Here is the link to my previous post. 

https://groups.google.com/forum/?nomobile=true#!topic/rabbitmq-users/BjcDfYyEFjA

It has been running okay since, but now only one of the nodes in the cluster is showing high memory consumption.

node1 2.4G 

node2 623MB 

node3 634MB

node4 512MB

node5 239MB

Current rabbitmq cluster stat.

ready 390,485 messages 

publish 13/s

deliver 11/s

Node1's memory details.

Queues 219MB queues

Binaries 41MB

System - 27MB code

             - 1.1MB atoms

     - 1.4GB other

I think RabbitMQ is somehow having an issue with returning (fully used) memory. Maybe some sort of memory leak?

The attached image is showing the ground of my thought.

Anyone has any clue why only one node in the cluster is showing such irregular memory consumption?  

Any help would be appreciated.

[Michael Klishin]

See [1][2][3][4].

1. https://groups.google.com/forum/#!searchin/rabbitmq-users/memory$20strategy|sort:date/rabbitmq-users/TVZt45O3WzU/8Bdd7fJ6AgAJ

2. https://groups.google.com/forum/#!searchin/rabbitmq-users/memory$20strategy|sort:date/rabbitmq-users/npFZyrCl_Vw/zO8LB1ULBgAJ

3. https://groups.google.com/forum/#!searchin/rabbitmq-users/memory$20strategy|sort:date/rabbitmq-users/0o8lBe8bR-M/AImHRQCZCgAJ

4. http://www.rabbitmq.com/memory-use.html

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MK

Staff Software Engineer, Pivotal/RabbitMQ

[Michael Klishin]

If it's just one node then see if it may be handling most of queue masters [1] or connections [2].

1. Queue Master Location in http://www.rabbitmq.com/ha.html

2. http://rabbitmq.com/networking.html

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MK

Staff Software Engineer, Pivotal/RabbitMQ