[rabbitmq-discuss] Dead Letter, TTL and Cycle

Simon MacMullen simon at rabbitmq.com
Fri Apr 12 12:41:32 BST 2013


On 12/04/13 12:40, Michaël OULLION wrote:
> Thanks Simon for your answer.
> Any idea of when this feature will be available?
> Q4 2013? 2015? not planned yet?

We're still considering :-) but if I had to guess I'd say this year.

Cheers, Simon

> Just to know If I delay my dev to wait it or not.
>
> Regards,
>
>
>> Message du 12/04/13 à 12h19
>> De : "Simon MacMullen"
>> A : "Michaël OULLION" , "Discussions about RabbitMQ"
>> Copie à :
>> Objet : Re: [rabbitmq-discuss] Dead Letter, TTL and Cycle
>>
>> At the moment you would have to consume and republish to purge the
>> header outside of RabbitMQ.
>>
>> In a future release we might relax the no-cycle requirement.
>>
>> Cheers, Simon
>>
>> On 12/04/13 10:04, Michaël OULLION wrote:
>>> Hello,
>>>
>>> I work on a solution to consume Message on queue and I use "Dead letter" mechanism.
>>> I try to distingish 2 type of error when consuming message :
>>> * Functional
>>> the message cannot be proceed by the application due to a format bug, We can't requeue it because they won't be proceed.
>>> * Technical
>>> The message cannot be proceed because the DB is offline. This kind of message can be proceed when the DB will be back.
>>>
>>> So only "technical error"'s message are send to Dead Queue.
>>> Now, I try to resend "automatically" the message from the Dead Queue to the "live" one.
>>>
>>> To do this, I put a TTL parameter on the Queue ( for example 10 minutes), so the message are automatically recycle every 10 minutes.
>>> This solution work fine... except that I create a cycle ( Live queue => Dead queue => Live Queue) and message are dropped.
>>>
>>> Is there a way to "purge" the header of messages when they are recycled directly inside the RabbitMQ Server?
>>> Or Do I create an specific client to read Dead message, purge header and resend it ?
>>>
>>> Regards,
>>> ___________________________________________________________
>>> Le spectacle de Franck Dubosc perturbé à cause de Koh-Lanta ! Plus d'explications ici http://people.voila.fr/people/actu-stars/personnalites/franck-dubosc-
> oblige-de-reecrire-son-spectacle-a-cause-de-koh-lanta-people_9953.html
>>> _______________________________________________
>>> rabbitmq-discuss mailing list
>>> rabbitmq-discuss at lists.rabbitmq.com
>>> https://lists.rabbitmq.com/cgi-bin/mailman/listinfo/rabbitmq-discuss
>>>
>>
>>
>> --
>> Simon MacMullen
>> RabbitMQ, VMware
>>
>
> ___________________________________________________________
> Le spectacle de Franck Dubosc perturbé à cause de Koh-Lanta ! Plus d'explications ici http://people.voila.fr/people/actu-stars/personnalites/franck-dubosc-oblige-de-reecrire-son-spectacle-a-cause-de-koh-lanta-people_9953.html
>


-- 
Simon MacMullen
RabbitMQ, VMware


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