[rabbitmq-discuss] Suggestion for enabling users view data in queues

Alvaro Videla videlalvaro at gmail.com
Mon Sep 30 18:20:56 BST 2013


See
http://www.rabbitmq.com/blog/2011/01/20/rabbitmq-backing-stores-databases-and-disks/
And:
http://hg.rabbitmq.com/rabbitmq-server/file/2f1ab871e347/src/rabbit_msg_store.erl#l181

-Alvaro


On Mon, Sep 30, 2013 at 10:22 AM, Bruce Dou <doubaokun at gmail.com> wrote:

> Where can I find RabbitMQ internal design documents or ideas?
>
>
> On Mon, Sep 30, 2013 at 4:37 PM, Simon MacMullen <simon at rabbitmq.com>wrote:
>
>> On 30/09/2013 04:44, Bruce Dou wrote:
>>
>>> How do you think about enabling users view data in queues?
>>>
>>
>> Being able to view queue contents in a random-access manner is not very
>> compatible with the existing behaviour of RabbitMQ queues where they can be
>> paged out to disk (yes, it would be possible, but it would be a huge job
>> and not exactly likely to be fast).
>>
>> You can currently kinda-sorta view contents of queues in the management
>> interface - this works behind the scenes by consuming the messages without
>> acknowledgement, then requeueing them. This doesn't scale well to huge
>> numbers of messages.
>>
>> It's unclear whether there would be any use for a limited queue browsing
>> feature in between these two cases - something that could list messages
>> that happen to be in memory but not those that are paged out. Conceivably
>> there could be but it's not really top of our list of priorities right now.
>>
>> Cheers, Simon
>>
>
>
>
> --
> A decathlon Developer & programmer
> http://blog.eood.cn/
>
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