[rabbitmq-discuss] Ready, Unacked and Total messages of Queues

Juno Chan juno at algorithmictradinggroup.com
Tue Apr 15 08:35:47 BST 2014


Hi Matthias,

thanks very much. So, for the queues having high values in ready& total #
of messages(even go up to 300K messages), rabbit MQ performance won't get
affected?
only those queues having high values in unacked and total would harm the
rabbitMQ performance, is that correct?

BTW, for 2 applications subscribing to the same subscribe channel, 2
separate queues are created, if for some reasons, one of them has problems
and cause the queue stuck (e.g. high # unack messages) will another queue
being affected?

Thanks very much


On Tue, Apr 15, 2014 at 3:23 PM, Matthias Radestock
<matthias at rabbitmq.com>wrote:

> On 15/04/14 07:01, Michael Klishin wrote:
>
>> On 15 April 2014 at 09:52:51, AJ (juno at algorithmictradinggroup.com)
>> wrote:
>>
>>> Would anyone please kindly explain more on the 'Ready', 'Unacked'
>>>>
>>> and 'Total' messages of a queue?
>>>
>>
>> Messages delivered by RabbitMQ to consumers can be acknowledged
>> automatically
>> (as soon as they are sent out) or manually using IModel#BasicAck.
>>
>> “Ready” messages are not delivered and simply sitting in a queue.
>> Total = ready + unacknowledged.
>>
>
> Btw, the meaning of these is explained in the management UI's built-in
> help - click on the '?' above the chart.
>
> Matthias.
>



-- 
Juno Chan
Algorithmic Trading Group (ATG) Ltd
www.algorithmictradinggroup.com
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