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From Christian Posta <christian.po...@gmail.com>
Subject Re: Question regarding to EnqueueCount and ExpiredCount for topic destination
Date Tue, 07 May 2013 14:40:16 GMT
Thanks for the feedback. I've opened the JIRA here and resolved it:

https://issues.apache.org/jira/browse/AMQ-4516




On Mon, May 6, 2013 at 12:31 PM, Yi Pan <ypan@yahoo-inc.com> wrote:

> Hi, Christian,
>
> Thanks for the quick response. However, the stats and its explanation is
> still very confusing to me.
>
> The standard explanation of Enqueue Count - the total number of messages
> sent to the queue since the last restart. That's counting the action of
> "sent to the queue", not the "number of messages stays in the queue".
> Hence,
> if a message is sent to the queue at t0, it should already been counted
> toward this metric. When this message expires at time t1, it is a change of
> the state of the message (i.e. it expired and no longer needed to be
> delivered). It does not change the fact that it has been "sent to the
> queue"
> at time t0. It seems very confusing to me when ActiveMQ increments the
> counter for "sent" action at t0 and reverts this counter of previous action
> at a later time.
>
> IMHO, it would be much better if we keep the Enqueue Count as simple as the
> number of messages ever made into the queue since restart, while the
> Expired
> Count is an independent metric showing how many messages that were in the
> queue and have expired till now.
>
> Best regards!
>
> -Yi
>
>
>
> --
> View this message in context:
> http://activemq.2283324.n4.nabble.com/Question-regarding-to-EnqueueCount-and-ExpiredCount-for-topic-destination-tp4666634p4666665.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>



-- 
*Christian Posta*
http://www.christianposta.com/blog
twitter: @christianposta

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