[Bug 1312507] [NEW] rabbitmq-server fails to start on a IPv6-Only environment

[Thiago Martins]

Public bug reported:

Guys,

I'm trying to install rabbitmq-server on Ubuntu 14.04 on a IPv6-Only
network and it fails, look:

---
root at server-1:~# apt-get -f install
Reading package lists... Done
Building dependency tree       
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up rabbitmq-server (3.2.4-1) ...
 * Starting message broker rabbitmq-server
 * FAILED - check /var/log/rabbitmq/startup_\{log, _err\}
   ...fail!
invoke-rc.d: initscript rabbitmq-server, action "start" failed.
dpkg: error processing package rabbitmq-server (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 rabbitmq-server
E: Sub-process /usr/bin/dpkg returned an error code (1)
---

The log:
---
root at server-1:~# cat /var/log/rabbitmq/startup_log 
ERROR: epmd error for host "server-1": address (cannot connect to host/port)
---

The connectivity (resolved via /etc/hosts):

---
root at server-1:~# ping6 server-1
PING server-1(server-1.domain.com.br) 56 data bytes
64 bytes from server-1.domain.com.br: icmp_seq=1 ttl=64 time=0.019 ms
64 bytes from server-1.domain.com.br: icmp_seq=2 ttl=64 time=0.044 ms
---

However, if I comment out the "nameserver 2001:4860:4860::8844" entries
out from /etc/resolv.conf, then, rabbitmq-server starts! Very weird...

Nothing on /etc/resolv.conf now...:

---
root at server-1:~# apt-get -f install                                                                                                                                                                           
Reading package lists... Done
Building dependency tree       
Reading state information... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up rabbitmq-server (3.2.4-1) ...
 * Starting message broker rabbitmq-server
   ...done.
---

I found the following topics about this on the net:

* Related:

http://rabbitmq.1065348.n5.nabble.com/Error-starting-rabbitmq-in-IPv6
-environment-td32001.html

* Not sure if it is related:

http://blog.domb.net/?p=290

http://hg.rabbitmq.com/rabbitmq-erlang-client/rev/7f53561c0c11


Best!
Thiago

** Affects: rabbitmq-server (Ubuntu)
     Importance: Undecided
         Status: New

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Title:
  rabbitmq-server fails to start on a IPv6-Only environment

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