[rabbitmq-discuss] Default vhost and Http API

stone zmstone at gmail.com
Wed Mar 28 09:00:34 BST 2012


Those queues are declared from Erlang client across an AMQP link.
Sorry, I don't know how to get tcpdump.
But I can give you an input that'll lead to the crash if this is what you
1> A="queue.name".
2> term_to_binary(A).
If this binary is used in #'queue.declare'.queue, GUI will crash.


On Tue, Mar 27, 2012 at 9:30 PM, Tony Garnock-Jones <
tonygarnockjones+rabbitmq at gmail.com> wrote:

> Hi Stone,
> Sorry, I don't quite understand: how are you declaring the queue? Is it
> with the Erlang client across an AMQP network link? Or some other client
> across an AMQP network link? Or is it with the Erlang client in the same
> Erlang cluster as the server?
> If it's across an AMQP network link, perhaps you could paste in tcpdump
> output showing the bytes sent on the wire during the queue.declare. That
> way it's crystal clear what's happening.
> If it's not across an AMQP link then yeah, perhaps the Erlang client needs
> more type-assertionish things in it :-)
> Regards,
>   Tony
> 2012/3/27 stone <zmstone at gmail.com>
>> Hi Tony,
>> I didn't save the scene, didn't really look into the fault client code.
>> Just had a quick test, reproduced by using term_to_binary instead of
>> list_to_binary to make the queue name in Erlang client.
>> Perhaps this WAS exactly the case from the other day. shame :)
>> I simply though it was UTF used in that case because the crash report has
>> "utf" in it.
>> http://localhost:55672/#/queues
>> {error,{exit,{ucs,{bad_utf8_character_code}},
>>              [{xmerl_ucs,from_utf8,1},
>>               {mochijson2,json_encode_string,2},
>>               {mochijson2,'-json_encode_proplist/2-fun-0-',3},
>>               {lists,foldl,3},
>>               {mochijson2,json_encode_proplist,2},
>>               {mochijson2,'-json_encode_array/2-fun-0-',3},
>>               {lists,foldl,3},
>>               {mochijson2,json_encode_array,2}]}}
>> Anyway, perhaps  rabbit-server should have the name validated before
>> allowing the declaration.
>> BRs
>> /stone
>> 在 2012年3月27日 下午7:27,Tony Garnock-Jones <
>> tonygarnockjones+rabbitmq at gmail.com>写道:
>>> On 27 March 2012 12:50, stone <zmstone at gmail.com> wrote:
>>>> The other day, we accidentally created queues and bindings with UTF
>>>> characters in the names.
>>>> Then the management web GUI crashed (on mochiweb level if i remember
>>>> correctly), so we couldn't delete the queu on GUI.
>>>> And there was no CLI to do it, we actually had to reset the node to get
>>>> rid of the bad-naming queues.
>>> A test case would be extremely useful and welcome! Can you remember the
>>> exact bytes used in the names? And which GUI actions caused the crashes?
>>> Regards,
>>>   Tony
> --
> Tony Garnock-Jones
> tonygarnockjones at gmail.com
> http://homepages.kcbbs.gen.nz/tonyg/
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