[rabbitmq-discuss] First-time rabbitmq install crashed after a week & now node won't restart

[Ian Ragsdale]

Did you happen to change your hostname?  That would cause rabbitmqctl to fail to connect to a running server that was started with a different hostname, and a running server would cause the second failure (because it couldn't listen on the correct port).

- Ian

On Aug 31, 2010, at 9:17 PM, Mark Soper <masoper at gmail.com> wrote:

> Just getting started with rabbitmq, hoping for advice on how to troubleshoot this:
> 
> Last week I started using celery with rabbitmq on EC2 Ubuntu server.
> It ran fine for a week, then died.  
> 
> > sudo rabbitmqctl status
> 
> Status of node 'rabbit at domU-12-31-39-05-6E-52' ...
> Error: unable to connect to node 'rabbit at domU-12-31-39-05-6E-52': nodedown
> diagnostics:
> - nodes and their ports on domU-12-31-39-05-6E-52: [{rabbitmqctl11365,50319}]
> - current node: 'rabbitmqctl11365 at domU-12-31-39-05-6E-52'
> - current node home dir: /var/lib/rabbitmq
> - current node cookie hash: nF0wVuFwDDUCqBIAugLXcw==
> 
> 
> > sudo rabbitmq-server
> 
> +---+   +---+
> |   |   |   |
> |   |   |   |
> |   |   |   |
> |   +---+   +-------+
> |                   |
> | RabbitMQ  +---+   |
> |           |   |   |
> |   v1.7.2  +---+   |
> |                   |
> +-------------------+
> AMQP 8-0
> Copyright (C) 2007-2010 LShift Ltd., Cohesive Financial Technologies LLC., and Rabbit Technologies Ltd.
> Licensed under the MPL.  See http://www.rabbitmq.com/
> 
> node          : rabbit at domU-12-31-39-05-6E-52
> app descriptor: /usr/lib/rabbitmq/lib/rabbitmq_server-1.7.2/sbin/../ebin/rabbit.app
> home dir      : /var/lib/rabbitmq
> cookie hash   : nF0wVuFwDDUCqBIAugLXcw==
> log           : /var/log/rabbitmq/rabbit.log
> sasl log      : /var/log/rabbitmq/rabbit-sasl.log
> database dir  : /var/lib/rabbitmq/mnesia/rabbit
> 
> starting internal event notification system                           ...done
> starting logging server                                               ...done
> starting database                                                     ...done
> -- kernel ready
> starting alarm handler                                                ...done
> starting queue supervisor                                             ...done
> starting node monitor                                                 ...done
> starting cluster router                                               ...done
> -- core initialized
> starting empty DB check                                               ...done
> starting codec correctness check                                      ...done
> starting exchange recovery                                            ...done
> starting queue recovery                                               ...done
> starting persister                                                    ...done
> starting guid generator                                               ...done
> -- message delivery logic ready
> starting error log relay                                              ...done
> starting networking                                                   ...BOOT ERROR: FAILED
> Reason: {{badmatch,
>              {error,
>                  {shutdown,
>                      {child,undefined,'rabbit_tcp_listener_sup_0.0.0.0:5672',
>                          {tcp_listener_sup,start_link,
>                              [{0,0,0,0},
>                               5672,
>                               [binary,
>                                {packet,raw},
>                                {reuseaddr,true},
>                                {exit_on_close,false}],
>                               {rabbit_networking,tcp_listener_started,[]},
>                               {rabbit_networking,tcp_listener_stopped,[]},
>                               {rabbit_networking,start_client,[]},
>                               "TCP Listener"]},
>                          transient,infinity,supervisor,
>                          [tcp_listener_sup]}}}},
>          [{rabbit_networking,start_listener,4},
>           {rabbit_networking,'-boot_tcp/0-lc$^0/1-0-',1},
>           {rabbit_networking,boot_tcp,0},
>           {rabbit_networking,boot,0},
>           {rabbit,'-run_boot_step/1-lc$^1/1-1-',1},
>           {rabbit,run_boot_step,1},
>           {rabbit,'-start/2-lc$^0/1-0-',1},
>           {rabbit,start,2}]}
> Erlang has closed
> {"init terminating in do_boot",{{nocatch,{error,{cannot_start_application,rabbit,{bad_return,{{rabbit,start,[normal,[]]},{'EXIT',{rabbit,failure_during_boot}}}}}}},[{init,start_it,1},{init,start_em,1}]}}
> 
> Crash dump was written to: erl_crash.dump
> init terminating in do_boot ()
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