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

Question

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"

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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:

• See the CLI, clustering and networking guides on http://rabbitmq.com/documentation.html to learn more
• Consult server logs on node rabbit@NULL

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==

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

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

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

Solution 1

I have reinstalled the RabbitMQ in my computer by using default setup folder

Then checked with the command :

rabbitmqctl status

It works now, not the problem of Erlang VM .(Means Er can install at another folder)

It will cause some problem (like this one) that I couldn't find out now if we don't use the RabbitMQ default setup require folder (C:\Program Files\RabbitMQ Server)

If anyone finds it out, I hope you can tell me why and how to fix.

Solution 2

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.

Solution 3

If you are using dedicated drive folder locations for your development tools/software in Windows10(Not the windows default location), one way you can synchronize the erlang cookie as described by https://www.rabbitmq.com/cli.html is by copying the cookie as explained below.

Please note in my case HOMEDRIVE and HOMEPATH environment variables both are not set.

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After copying the "C:\Windows\system32\config\systemprofile\.erlang.cookie" to "C:\Users\%USERNAME%\.erlang.cookie" ,

the error "tcp connection succeeded but Erlang distribution failed" is resolved.

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Now I am able to use "rabbitmqctl.bat status" command successfully. Hence there is no mandatory need to install in default location to resolve this error as synchronizing cookie will resolve that error.

Solution 4

How I resolved mine

It's mostly caused by cookie mismatch on a fresh installation of Rabbit MQ

follow this 2 steps

1. copy the .erlang.cookie file from C:\Windows\System32\config\systemprofile paste it into 
C:\Users\["your user nameusername"] folder

2. run rabbitmq-service.bat stop and rabbitmq-service.bat start

Done it should work now when you run 'rabbitmqctl start_app' good luck.

note if you have more than one user put it in the correct user folder

Solution 5

i got error like this, i just stop my rabbitMQ with close port 25672 here syntax for linux:
kill -9 $(lsof -t -i:25672)

Error Images:

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