[rabbitmq-discuss] Clustering and rabbitmqctl hangs

Fri May 4 14:19:57 BST 2012

Hi,

I'm seeing the following behaviour when trying to test "A cluster on a 
single machine" http://www.rabbitmq.com/clustering.html#single-machine

I'm running the following script with sudo:

RABBITMQ_NODE_PORT=5672 RABBITMQ_NODENAME=rabbit1 rabbitmq-server -detached
RABBITMQ_NODE_PORT=5673 RABBITMQ_NODENAME=rabbit2 rabbitmq-server -detached
RABBITMQ_NODE_PORT=5674 RABBITMQ_NODENAME=rabbit3 rabbitmq-server -detached

Which outputs:

Activating RabbitMQ plugins ...
6 plugins activated:
* amqp_client-2.8.1
* mochiweb-1.3-rmq2.8.1-git
* rabbitmq_management-2.8.1
* rabbitmq_management_agent-2.8.1
* rabbitmq_mochiweb-2.8.1
* webmachine-1.7.0-rmq2.8.1-hg

Activating RabbitMQ plugins ...
6 plugins activated:
* amqp_client-2.8.1
* mochiweb-1.3-rmq2.8.1-git
* rabbitmq_management-2.8.1
* rabbitmq_management_agent-2.8.1
* rabbitmq_mochiweb-2.8.1
* webmachine-1.7.0-rmq2.8.1-hg

Activating RabbitMQ plugins ...
6 plugins activated:
* amqp_client-2.8.1
* mochiweb-1.3-rmq2.8.1-git
* rabbitmq_management-2.8.1
* rabbitmq_management_agent-2.8.1
* rabbitmq_mochiweb-2.8.1
* webmachine-1.7.0-rmq2.8.1-hg

Ok, looks good. So now I want to check that that all works and I run:

$> sudo rabbitmqctl -n rabbit1 at dfooks-ubuntu64 status
Status of node 'rabbit1 at dfooks-ubuntu64' ...
[{pid,9141},
 {running_applications,
     [{rabbitmq_management,"RabbitMQ Management Console","2.8.1"},
      {rabbitmq_management_agent,"RabbitMQ Management Agent","2.8.1"},
      {amqp_client,"RabbitMQ AMQP Client","2.8.1"},
      {rabbit,"RabbitMQ","2.8.1"},
      {os_mon,"CPO  CXC 138 46","2.2.5"},
      {sasl,"SASL  CXC 138 11","2.1.9.3"},
      {rabbitmq_mochiweb,"RabbitMQ Mochiweb Embedding","2.8.1"},
      {webmachine,"webmachine","1.7.0-rmq2.8.1-hg"},
      {mochiweb,"MochiMedia Web Server","1.3-rmq2.8.1-git"},
      {inets,"INETS  CXC 138 49","5.5.2"},
      {mnesia,"MNESIA  CXC 138 12","4.4.17"},
      {stdlib,"ERTS  CXC 138 10","1.17.3"},
      {kernel,"ERTS  CXC 138 10","2.14.3"}]},
 {os,{unix,linux}},
 {erlang_version,
     "Erlang R14B02 (erts-5.8.3) [source] [64-bit] [smp:3:3] [rq:3] 
[async-threads:30] [kernel-poll:true]\n"},
 {memory,
     [{total,30671136},
      {processes,11642648},
      {processes_used,11633784},
      {system,19028488},
      {atom,1339001},
      {atom_used,1316698},
      {binary,156016},
      {code,14610757},
      {ets,1061320}]},
 {vm_memory_high_watermark,0.39999999961788246},
 {vm_memory_limit,418719334},
 {file_descriptors,

 [{total_limit,924},{total_used,3},{sockets_limit,829},{sockets_used,1}]},
 {processes,[{limit,1048576},{used,170}]},
 {run_queue,0},
 {uptime,703}]
...done.

 Again, good its running. However, if I now try and run

$> sudo rabbitmqctl -n rabbit2 at dfooks-ubuntu64 status
Status of node 'rabbit2 at dfooks-ubuntu64' ...

Then the command just hangs and I have to ctrl-c. This happens with all of 
the rabbitmqctrl commands I've tried so far (app_stop, app_start, stop). 
Anybody got some suggestions?
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