unable to connect to epmd (port 4369)

[Jamal Mufti]

Hi all,

Need your help please

rabbitmq-server.service - RabbitMQ broker

   Loaded: loaded (/usr/lib/systemd/system/rabbitmq-server.service; enabled; vendor preset: disabled)

   Active: failed (Result: exit-code) since Tue 2018-08-07 03:59:35 EDT; 18s ago

  Process: 3474 ExecStop=/usr/sbin/rabbitmqctl stop (code=exited, status=0/SUCCESS)

  Process: 3301 ExecStart=/usr/sbin/rabbitmq-server (code=exited, status=1/FAILURE)

 Main PID: 3301 (code=exited, status=1/FAILURE)

Aug 07 03:59:35 vps-test1 rabbitmqctl[3474]: attempted to contact: ['rabbit@vps-test1']

Aug 07 03:59:35 vps-test1 rabbitmqctl[3474]: rabbit@vps-test1:

Aug 07 03:59:35 vps-test1 rabbitmqctl[3474]: * unable to connect to epmd (port 4369) on vps-test1: timeo...out)

Aug 07 03:59:35 vps-test1 rabbitmqctl[3474]: current node details:

Aug 07 03:59:35 vps-test1 rabbitmqctl[3474]: - node name: 'rabbitmq-cli-74@vps-test1'

Aug 07 03:59:35 vps-test1 rabbitmqctl[3474]: - home dir: .

Aug 07 03:59:35 vps-test1 rabbitmqctl[3474]: - cookie hash: i9Qb6qoPfnQRu9K6bXSv4g==

Aug 07 03:59:35 vps-test1 systemd[1]: Failed to start RabbitMQ broker.

Aug 07 03:59:35 vps-test1 systemd[1]: Unit rabbitmq-server.service entered failed state.

Aug 07 03:59:35 vps-test1 systemd[1]: rabbitmq-server.service failed.

Hint: Some lines were ellipsized, use -l to show in full.

[Jamal Mufti]

 rabbitmq-server.service - RabbitMQ broker

   Loaded: loaded (/usr/lib/systemd/system/rabbitmq-server.service; enabled; vendor preset:        disabled)

   Active: failed (Result: exit-code) since Tue 2018-08-07 04:04:30 EDT; 3h 20min ago

  Process: 3803 ExecStop=/usr/sbin/rabbitmqctl stop (code=exited, status=0/SUCCESS)

  Process: 3630 ExecStart=/usr/sbin/rabbitmq-server (code=exited, status=1/FAILURE)

 Main PID: 3630 (code=exited, status=1/FAILURE)

   Status: "Exited."

Aug 07 04:04:30 vps-test1 rabbitmqctl[3803]: attempted to contact: ['rabbit@vps-test1']

Aug 07 04:04:30 vps-test1 rabbitmqctl[3803]: rabbit@vps-test1:

Aug 07 04:04:30 vps-test1 rabbitmqctl[3803]: * unable to connect to epmd (port 4369) on vps-       test1: timeout (timed out)

Aug 07 04:04:30 vps-test1 rabbitmqctl[3803]: current node details:

Aug 07 04:04:30 vps-test1 rabbitmqctl[3803]: - node name: 'rabbitmq-cli-14@vps-test1'

Aug 07 04:04:30 vps-test1 rabbitmqctl[3803]: - home dir: .

Aug 07 04:04:30 vps-test1 rabbitmqctl[3803]: - cookie hash: i9Qb6qoPfnQRu9K6bXSv4g==

Aug 07 04:04:30 vps-test1 systemd[1]: Failed to start RabbitMQ broker.

Aug 07 04:04:30 vps-test1 systemd[1]: Unit rabbitmq-server.service entered failed state.

Aug 07 04:04:30 vps-test1 systemd[1]: rabbitmq-server.service failed.

[Michael Klishin]

See firewall and SELinux settings and make sure access to the ports used in your environment (epmd is *always* used)

are accessible [1]. In this case the node attempts to connect to epmd on the same

host, so firewall and DNS resolution [2] are by far the most common causes.

1. https://www.rabbitmq.com/networking.html#selinux-ports

2. https://www.rabbitmq.com/troubleshooting-networking.html

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MK

Staff Software Engineer, Pivotal/RabbitMQ