[rabbitmq-discuss] RabbitMQ join_cluster error

Kevin Behr behrk2 at gmail.com
Tue Mar 25 18:38:45 GMT 2014

Hi Simon,

I am running the latest version of RabbitMQ: {rabbit,"RabbitMQ","3.2.4"}

You're right about the Erlang versions (see below).  It's weird - I had
initially dismissed this possibility because I installed RabbitMQ on two
brand new Amazon EC2 server instances within one minute of each other
today, using the same installation method.  I don't know why one would
differ from the other.

I am running Ubuntu 12.04 (64-bit).  I just tried completely removing
RabbitMQ and all of its dependencies on each server instance and
re-installing (according to the instructions here:
http://www.rabbitmq.com/install-debian.html), and the Erlang version
mismatch remains!

How do I update R14B04 to R16B01?

     "Erlang R16B01 (erts-5.10.2) [source] [64-bit] [async-threads:30]

     "Erlang R14B04 (erts-5.8.5) [source] [64-bit] [rq:1]
[async-threads:30] [kernel-poll:true]\n"}

On Tue, Mar 25, 2014 at 2:08 PM, Simon MacMullen <simon at rabbitmq.com> wrote:

> That looks like the nodes of the cluster are running different Erlang
> versions. They should all be on the same version.
> That said, I thought we'd converted that to a more intelligible error
> message (it could hardly be less). Which version of RabbitMQ are you
> running?
> Cheers, Simon
> On 25/03/2014 17:49, Kevin Behr wrote:
>> Hello,
>> I am trying to cluster a slave node (rabbit2) with a master node
>> (rabbit1) in RabbitMQ. I am receiving the following error from the
>> |join_cluster| command, though. I don't know Erlang, so I am having
>> trouble determining the cause. Any ideas as to what the error is, or how
>> to fix it?
>> Both nodes can talk to each other via ping, and I have ensured that the
>> .erlang.cookie for each node is the same.
>> |root at rabbit2:~# rabbitmqctl stop_app
>> root at rabbit2:~# rabbitmqctl join_cluster rabbit at rabbit1
>> Clustering node 'rabbit at rabbit2' with 'rabbit at rabbit1' ...
>> Error: {{case_clause,
>>              {{error,
>>                   {aborted,
>>                       {function_clause,
>>                           [{mnesia_schema,cs2list,
>>                                [{cstruct,schema,set,[],
>>                                     ['rabbit at rabbit1'],
>>                                     [],0,read_write,false,[],[],
>> false,schema,
>>                                     [table,cstruct],
>>                                     [],[],[],
>>                                     {{1395,763528,28278},
>>                                      'rabbit at rabbit1'},
>>                                     {{2,0},[]}}]},
>>                            {mnesia_schema,do_merge_schema,1},
>>                            {mnesia_tm,apply_fun,3},
>>                            {mnesia_tm,execute_transaction,5},
>>                            {mnesia_schema,schema_coordinator,3}]}}},
>>               ['rabbit at rabbit1']}},
>>          [{rabbit_mnesia,change_extra_db_nodes,2},
>>           {rabbit_mnesia,init_db,3},
>>           {rabbit_mnesia,init_db_and_upgrade,3},
>>           {rabbit_mnesia,init_db_with_mnesia,4},
>>           {rabbit_mnesia,join_cluster,2},
>>           {rpc,'-handle_call_call/6-fun-0-',5}]}|
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