You are viewing a plain text version of this content. The canonical link for it is here.
Posted to users@activemq.apache.org by xabhi <xa...@gmail.com> on 2013/12/26 13:01:11 UTC
Message Dequeue count in jconsole 0 even after messages are
recieved and consumed by subscribers
Hi,
I have producer which constantly is sending messages to the topic and i can
see that messages are enqueued in the topic and dispatched also and i see
that there are subscribers which are receiving messages. The problem is that
the dequeue count in jconsole is still shown as zero even though the
subscribers are receiving messages.
Has anybody faced a similar problem before? Please help me, I am really
stuck on this.
Thanks,
Abhi
--
View this message in context: http://activemq.2283324.n4.nabble.com/Message-Dequeue-count-in-jconsole-0-even-after-messages-are-recieved-and-consumed-by-subscribers-tp4675875.html
Sent from the ActiveMQ - User mailing list archive at Nabble.com.
Re: Message Dequeue count in jconsole 0 even after messages are recieved and consumed by subscribers
Posted by Robert Davies <ra...@gmail.com>.
thanks!
On 10 Jan 2014, at 07:45, xabhi <xa...@gmail.com> wrote:
> https://issues.apache.org/jira/browse/AMQ-4965
> <https://issues.apache.org/jira/browse/AMQ-4965>
>
> Thanks,
> Abhi
>
>
>
> --
> View this message in context: http://activemq.2283324.n4.nabble.com/Message-Dequeue-count-in-jconsole-0-even-after-messages-are-recieved-and-consumed-by-subscribers-tp4675875p4676196.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
Rob Davies
————————
Red Hat, Inc
http://hawt.io - #dontcha
Twitter: rajdavies
Blog: http://rajdavies.blogspot.com
ActiveMQ in Action: http://www.manning.com/snyder/
Re: Message Dequeue count in jconsole 0 even after messages are
recieved and consumed by subscribers
Posted by xabhi <xa...@gmail.com>.
https://issues.apache.org/jira/browse/AMQ-4965
<https://issues.apache.org/jira/browse/AMQ-4965>
Thanks,
Abhi
--
View this message in context: http://activemq.2283324.n4.nabble.com/Message-Dequeue-count-in-jconsole-0-even-after-messages-are-recieved-and-consumed-by-subscribers-tp4675875p4676196.html
Sent from the ActiveMQ - User mailing list archive at Nabble.com.
Re: Message Dequeue count in jconsole 0 even after messages are
recieved and consumed by subscribers
Posted by Christian Posta <ch...@gmail.com>.
Can u open a jira for this?
On Wednesday, January 8, 2014, xabhi wrote:
> Thanks for reply christian.
> Yeah it would be good if the metrics work in same way for both durable and
> non-durable subscribers. It would also be nice if it was documented
> somewhere in ActiveMQ docs as I couldn't find any information about this
> behavior in ActiveMQ docs.
>
>
>
>
> --
> View this message in context:
> http://activemq.2283324.n4.nabble.com/Message-Dequeue-count-in-jconsole-0-even-after-messages-are-recieved-and-consumed-by-subscribers-tp4675875p4676143.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>
--
*Christian Posta*
http://www.christianposta.com/blog
twitter: @christianposta
Re: Message Dequeue count in jconsole 0 even after messages are
recieved and consumed by subscribers
Posted by xabhi <xa...@gmail.com>.
Thanks for reply christian.
Yeah it would be good if the metrics work in same way for both durable and
non-durable subscribers. It would also be nice if it was documented
somewhere in ActiveMQ docs as I couldn't find any information about this
behavior in ActiveMQ docs.
--
View this message in context: http://activemq.2283324.n4.nabble.com/Message-Dequeue-count-in-jconsole-0-even-after-messages-are-recieved-and-consumed-by-subscribers-tp4675875p4676143.html
Sent from the ActiveMQ - User mailing list archive at Nabble.com.
Re: Message Dequeue count in jconsole 0 even after messages are
recieved and consumed by subscribers
Posted by Christian Posta <ch...@gmail.com>.
There really isn't a good explanation for that as far as I can tell.
The regular Topic Subs make a call back to the destination... but as
Art explained, the dequeue count on a topic is not very meaningful...
the important enqueue/inflight/dequeue counts are on the
subscription... might be worth changing this so it doesn't update
topic dequeue counts at all.
On Tue, Jan 7, 2014 at 6:21 AM, xabhi <xa...@gmail.com> wrote:
> Can anybody from ActiveMQ team explain this behavior?
>
>
>
>
> --
> View this message in context: http://activemq.2283324.n4.nabble.com/Message-Dequeue-count-in-jconsole-0-even-after-messages-are-recieved-and-consumed-by-subscribers-tp4675875p4676074.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
--
Christian Posta
http://www.christianposta.com/blog
twitter: @christianposta
Re: Message Dequeue count in jconsole 0 even after messages are
recieved and consumed by subscribers
Posted by xabhi <xa...@gmail.com>.
Can anybody from ActiveMQ team explain this behavior?
--
View this message in context: http://activemq.2283324.n4.nabble.com/Message-Dequeue-count-in-jconsole-0-even-after-messages-are-recieved-and-consumed-by-subscribers-tp4675875p4676074.html
Sent from the ActiveMQ - User mailing list archive at Nabble.com.
Re: Message Dequeue count in jconsole 0 even after messages are
recieved and consumed by subscribers
Posted by xabhi <xa...@gmail.com>.
Thanks for reply artnassef.
My question is Why dequeue count for a topic is not zero in cases where I
have non-durable subscribers whereas it is zero if my topic has only durable
subscriber.
Can anyone explain this behavior?
--
View this message in context: http://activemq.2283324.n4.nabble.com/Message-Dequeue-count-in-jconsole-0-even-after-messages-are-recieved-and-consumed-by-subscribers-tp4675875p4676032.html
Sent from the ActiveMQ - User mailing list archive at Nabble.com.
Re: Message Dequeue count in jconsole 0 even after messages are
recieved and consumed by subscribers
Posted by artnaseef <Ar...@Ticketmaster.com>.
Topics never store messages. Inside the broker, messages produced to Topics
are dispatched to the Topic subscriptions, which themselves may store
messages.
So, the dequeue count on the Topic has little meaning.
--
View this message in context: http://activemq.2283324.n4.nabble.com/Message-Dequeue-count-in-jconsole-0-even-after-messages-are-recieved-and-consumed-by-subscribers-tp4675875p4675920.html
Sent from the ActiveMQ - User mailing list archive at Nabble.com.
Re: Message Dequeue count in jconsole 0 even after messages are
recieved and consumed by subscribers
Posted by xabhi <xa...@gmail.com>.
Thanks for the reply.
I am looking at the topic mbean. The dequeue count in topic mbean is 0 even
if the subscribers is receiving and processing messages. Does this mean that
messages are not removed from the topic and are still available?
How come dequeue counter is not zero in cases where I have non-durable
subscribers? What is the difference here ? I am not able to understand this.
Thanks.
Abhi
--
View this message in context: http://activemq.2283324.n4.nabble.com/Message-Dequeue-count-in-jconsole-0-even-after-messages-are-recieved-and-consumed-by-subscribers-tp4675875p4675906.html
Sent from the ActiveMQ - User mailing list archive at Nabble.com.
Re: Message Dequeue count in jconsole 0 even after messages are
recieved and consumed by subscribers
Posted by Christian Posta <ch...@gmail.com>.
are you looking at a topic mbean specifically? you should look at the
specific subscription mbeans to determine inflight/dequeue metrics
On Fri, Dec 27, 2013 at 2:15 AM, xabhi <xa...@gmail.com> wrote:
> I found this link <http://fusesource.com/forums/thread.jspa?messageID=16510>
> and performed a little test and found that
>
> 1. The dequeue count increases for non-durable subscribers (session
> transacted was true).
> 2. The dequeue count does not increase for durable subscribers (session
> transacted was true) and other counts like enqueue, dispatch increases
> normally. The strange part is inflight count is zero and dequeue count is
> also zero but dispatch (= inflight+dequeue) is equal to enqueue. How is this
> possible?
>
> Is this an expected behavior ? can anybody from activemq dev team confirm
> this behavior??
>
> There is no documentation regarding this. Ideally, i would expect the
> dequeue count to increase in case of durable subscribers also.
>
> Thanks,
> Abhi
>
>
>
> --
> View this message in context: http://activemq.2283324.n4.nabble.com/Message-Dequeue-count-in-jconsole-0-even-after-messages-are-recieved-and-consumed-by-subscribers-tp4675875p4675885.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
--
Christian Posta
http://www.christianposta.com/blog
twitter: @christianposta
Re: Message Dequeue count in jconsole 0 even after messages are
recieved and consumed by subscribers
Posted by xabhi <xa...@gmail.com>.
I found this link <http://fusesource.com/forums/thread.jspa?messageID=16510>
and performed a little test and found that
1. The dequeue count increases for non-durable subscribers (session
transacted was true).
2. The dequeue count does not increase for durable subscribers (session
transacted was true) and other counts like enqueue, dispatch increases
normally. The strange part is inflight count is zero and dequeue count is
also zero but dispatch (= inflight+dequeue) is equal to enqueue. How is this
possible?
Is this an expected behavior ? can anybody from activemq dev team confirm
this behavior??
There is no documentation regarding this. Ideally, i would expect the
dequeue count to increase in case of durable subscribers also.
Thanks,
Abhi
--
View this message in context: http://activemq.2283324.n4.nabble.com/Message-Dequeue-count-in-jconsole-0-even-after-messages-are-recieved-and-consumed-by-subscribers-tp4675875p4675885.html
Sent from the ActiveMQ - User mailing list archive at Nabble.com.