RabbitMQ failed to start, TCP connection succeeded but Erlang distribution failed

erlangrabbitmqserver

I'm a new one just start to learn and install RabbitMQ on Windows System.

I install Erlang VM and RabbitMQ in custom folder, not default folder (Both of them).

Then I have restarted my computer.

By the way，My Computer name is "NULL"

I cd to the RabbitMQ/sbin folder and use command：

rabbitmqctl status

But the return message is：

Status of node rabbit@NULL …

Error: unable to perform an operation on node 'rabbit@NULL'.
Please see diagnostics information and suggestions below.

Most common reasons for this are:

  • Target node is unreachable (e.g. due to hostname resolution, TCP connection or firewall issues)
  • CLI tool fails to authenticate with the server (e.g. due to CLI tool's Erlang cookie not matching that of the server)
  • Target node is not running

In addition to the diagnostics info below:

DIAGNOSTICS

attempted to contact: [rabbit@NULL]

rabbit@NULL:

  • connected to epmd (port 4369) on NULL
  • epmd reports node 'rabbit' uses port 25672 for inter-node and CLI tool traffic

  • TCP connection succeeded but Erlang distribution failed

  • Authentication failed (rejected by the remote node), please check the Erlang cookie

Current node details:

  • node name: rabbitmqcli70@NULL
  • effective user's home directory: C:\Users\Jerry Song
  • Erlang cookie hash: 51gvGHZpn0gIK86cfiS7vp==

I have try to RESTART RabbitMQ, What I get is：

ERROR: node with name "rabbit" already running on "NULL"

By the way，My Computer name is "NULL"
And I have enable all ports in firewall.

Best Answer

https://groups.google.com/forum/#!topic/rabbitmq-users/a6sqrAUX_Fg describes the problem where there is a cookie mismatch on a fresh installation of Rabbit MQ. The easy solution on windows is to synchronize the cookies

Also described here: http://www.rabbitmq.com/clustering.html#erlang-cookie

Ensure cookies are synchronized across 1, 2 and Optionally 3 below

  1. %HOMEDRIVE%%HOMEPATH%\.erlang.cookie (usually C:\Users\%USERNAME%\.erlang.cookie for user %USERNAME%) if both the HOMEDRIVE and HOMEPATH environment variables are set

  2. %USERPROFILE%\.erlang.cookie (usually C:\Users\%USERNAME%\.erlang.cookie) if HOMEDRIVE and HOMEPATH are not both set

  3. For the RabbitMQ Windows service - %USERPROFILE%\.erlang.cookie (usually C:\WINDOWS\system32\config\systemprofile)

The cookie file used by the Windows service account and the user running CLI tools must be synchronized by copying the one from C:\WINDOWS\system32\config\systemprofile folder.

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