[rabbitmq-discuss] Rabbitmq Crash and number of consumers

[Eugene Kirpichov]

Hi Andrea,

I had exactly the same problem once. Search the mailing list.
I believe it has since been fixed in later versions of RabbitMQ.

On Fri, Oct 7, 2011 at 12:08 PM, Rosa, Andrea <andrea.rosa at hp.com> wrote:
> Hi all,
>
>
>
> We are using Rabbitmq 2.5 version and yesterday we found (a number of time)
> in the log file this entry:
>
> =INFO REPORT==== 6-Oct-2011::14:58:13 ===
>     alarm_handler: {set,{file_descriptor_limit,[]}}
>
> Finally it hit an error:
>
> =ERROR REPORT==== 6-Oct-2011::14:58:13 ===
> ** Generic server msg_store_persistent terminating
> ** Last message in was {'$gen_cast',
>                            {client_dying,
>                                <<199,5,182,196,129,67,147,182,61,201,143,0,
>                                  51,197,190,234>>}}
> ** When Server state == {msstate,
>                             "/var/lib/rabbitmq/mnesia/nodename/msg_store_persistent",
>                             rabbit_msg_store_ets_index,
>                             {state,520256,
>                                 "/var/lib/rabbitmq/mnesia/nodename/msg_store_persistent"},
>                             22,#Ref<0.0.0.1817>,
>                             {dict,0,16,16,8,80,48,
>                                 {[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],
>                                  []},
>                                 {{[],[],[],[],[],[],[],[],[],[],[],[],[],[],
>                                   [],[]}}},
>                             [],undefined,589,5530342,[],<0.296.0>,524353,
>                             516159,528450,
>                             {set,19,16,16,8,80,48,
>                                 {[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],
>                         ....
> ** Reason for termination ==
> ** {{badmatch,false},
>     [{rabbit_msg_store_ets_index,insert,2},
>      {rabbit_msg_store,write_message,3},
>      {rabbit_msg_store,handle_cast,2},
>      {gen_server2,handle_msg,2},
>      {proc_lib,wake_up,3}]}
>
> =INFO REPORT==== 6-Oct-2011::14:58:14 ===
> stopped TCP Listener on [::]:5672
>
>
>
> Right after this, rabbitmq closed the listener socket and did not recover.
> The service kept running without accepting any connections, to fix the
> problem we needed to restart the service.
>
> What can be happened?
>
>
>
> I have got another question: when I run the rabbitmqctl list_queues
> consumers the number of the consumers how is it calculate?
>
> There is a “live” calculation or the information are stored somewhere and
> refreshed after “n” seconds?
>
> I’ve got a queue with a single consumer and sometimes (I don’t know why!)
> the consumer disappears, to detect that there is a script running which uses
> rabbitmqctl list_queues command but It can detect this situation with a
> delay of about 10-15 minutes even if the script  runs every minute.
>
>
>
> Best Regards
>
> --
>
> Andrea Rosa
>
>
>
>
>
>
>
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>
>



-- 
Eugene Kirpichov
Principal Engineer, Mirantis Inc. http://www.mirantis.com/
Editor, http://fprog.ru/