[rabbitmq-discuss] rabbitmqctl stall/hang when leaving a cluster

Wed Feb 22 23:05:56 GMT 2012

I was able to just now repro this again. Because of some layers of
scripting, it turns out it's not hanging up when running rabbitmq-server.
Rather, it's hanging up when running "rabbitmqctl wait <pidfile>"

The output from rabbitmqctl when run on any node is:

Waiting for rabbit at play ...   << Where 'play' is the node that's
restarting>>
pid is 21925 ...                     << Where the PID value is different
depending on which node it's run>>

The last few lines of the event log for the 'play' node:

=INFO REPORT==== 22-Feb-2012::14:52:08 ===
Stopping Rabbit

=INFO REPORT==== 22-Feb-2012::14:52:08 ===
    application: rabbitmq_management
    exited: stopped
    type: permanent

=INFO REPORT==== 22-Feb-2012::14:52:08 ===
    application: rabbitmq_management_agent
    exited: stopped
    type: permanent

=INFO REPORT==== 22-Feb-2012::14:52:08 ===
stopped TCP Listener on 0.0.0.0:5672

=INFO REPORT==== 22-Feb-2012::14:52:08 ===
    application: rabbit
    exited: stopped
    type: permanent

=INFO REPORT==== 22-Feb-2012::14:52:08 ===
    application: os_mon
    exited: stopped
    type: permanent

=INFO REPORT==== 22-Feb-2012::14:52:08 ===
    application: mnesia
    exited: stopped
    type: permanent

=INFO REPORT==== 22-Feb-2012::14:52:08 ===
Halting Erlang VM

=INFO REPORT==== 22-Feb-2012::14:52:13 ===
Limiting to approx 924 file handles (829 sockets)

On Wed, Feb 22, 2012 at 10:40 AM, Matt Pietrek <mpietrek at skytap.com> wrote:

> Unfortunately, I don't see anything in the logs. I'll try again. Is there
> anything I can do on my end to gather more information?
>
> Matt
>
>
> On Wed, Feb 22, 2012 at 3:45 AM, Simon MacMullen <simon at rabbitmq.com>wrote:
>
>> On 21/02/12 18:49, Matt Pietrek wrote:
>>
>>> If I try this action on the node with the stats database, rabbitmqctl
>>> waits forever and I have to ctrl-c out.  If I then try "rabbitmqctl
>>> stop", it errors out, saying that the node is down.
>>>
>>
>> Hmm. Needless to say, this does not happen when I try it :(
>>
>> Does anything show up in the logs on that node at this point?
>>
>> Cheers, Simon
>>
>> --
>> Simon MacMullen
>> RabbitMQ, VMware
>>
>
>
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