Rabbit nodes listen 25672 port of removed nodes

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qrshat

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Jan 10, 2023, 4:45:09 PM1/10/23
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I had setup 5 nodes rabbitmq cluster. Then I remove 2 of nodes from the cluster. Now it is a 3 nodes cluster. But when I check rabbit nodes from rabbit user inteface, I still see the port of the removed node for 25672 are listening.  Attached is the related screen shot.

When I run the "rabbitmqctl cluster_status" command, I don't see the removed nodes in the result. (rabbit2 and rabbit4 not in the list)

Could anyone know why i see removed notes in the attached screen shot?

Thanks in advance

Disk Nodes

rabbit@lnxvm-nbprmq01
rabbit@lnxvm-nbprmq03
rabbit@lnxvm-nbprmq05

Running Nodes

rabbit@lnxvm-nbprmq01
rabbit@lnxvm-nbprmq03
rabbit@lnxvm-nbprmq05

Versions

rabbit@lnxvm-nbprmq01: RabbitMQ 3.10.7 on Erlang 24.1.7
rabbit@lnxvm-nbprmq03: RabbitMQ 3.10.7 on Erlang 24.1.7
rabbit@lnxvm-nbprmq05: RabbitMQ 3.10.7 on Erlang 24.1.7

Maintenance status

Node: rabbit@lnxvm-nbprmq01, status: not under maintenance
Node: rabbit@lnxvm-nbprmq03, status: not under maintenance
Node: rabbit@lnxvm-nbprmq05, status: not under maintenance

Alarms

(none)

Network Partitions

(none)

Listeners

Node: rabbit@lnxvm-nbprmq01, interface: [::], port: 25672, protocol: clustering, purpose: inter-node and CLI tool communication
Node: rabbit@lnxvm-nbprmq01, interface: [::], port: 15672, protocol: http, purpose: HTTP API
Node: rabbit@lnxvm-nbprmq01, interface: [::], port: 5672, protocol: amqp, purpose: AMQP 0-9-1 and AMQP 1.0
Node: rabbit@lnxvm-nbprmq03, interface: [::], port: 25672, protocol: clustering, purpose: inter-node and CLI tool communication
Node: rabbit@lnxvm-nbprmq03, interface: [::], port: 5672, protocol: amqp, purpose: AMQP 0-9-1 and AMQP 1.0
Node: rabbit@lnxvm-nbprmq03, interface: [::], port: 15672, protocol: http, purpose: HTTP API
Node: rabbit@lnxvm-nbprmq05, interface: [::], port: 25672, protocol: clustering, purpose: inter-node and CLI tool communication
Node: rabbit@lnxvm-nbprmq05, interface: [::], port: 5672, protocol: amqp, purpose: AMQP 0-9-1 and AMQP 1.0
Node: rabbit@lnxvm-nbprmq05, interface: [::], port: 15672, protocol: http, purpose: HTTP API







rabbit.png

Michal Kuratczyk

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Jan 11, 2023, 2:09:02 AM1/11/23
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When RabbitMQ starts, it starts epmd - an Erlang process related to inter-node communication. When you stop RabbitMQ it may stay around.
You can just kill epmd.


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qrshat

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Jan 11, 2023, 4:35:32 PM1/11/23
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Hi Micha,

 It is a PROD environment, so I need to try this in a convenient time. So, Sorry for my late answer.

I stop rabbitmq-server service. I reboot the server. But it is still the same.

Thanks.
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