Closing an ActiveMQ Group

[pcman312 <pc...@gmail.com>]

I am looking into AMQ groups and have a question regarding closing a group.

Here is my general setup:

I push a message with a group ID onto a queue. A separate process picks up
the message and reports the message text and group ID to stdout (it's just a
sandbox process). That process then sends a message back to that queue with
the same group ID and JMSXGroupSeq set to -1 to try to close the group. When
that sandbox process loops again to get the next message, it gets the
close-group message and processes it as though it's any other ordinary
message.

This seems counter-intuitive to me. If I am trying to close out a group, I
don't want the process to receive the close-group message because it ends up
meaning that I'll never truly close a group, I'll only move the group
between the consumers because the same group ID is sent back out to the
broker and back down to one of the consumers.

Am I doing something wrong here, or am I misinterpreting closing a group?



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Re: Closing an ActiveMQ Group

[Dejan Bosanac <de...@nighttale.net>]

Hi,

sending a message back to the consumer will notify the consumer that
the group is closed. You can always filter this kind of messages in
your application.


Regards
--
Dejan Bosanac
----------------------
Red Hat, Inc.
FuseSource is now part of Red Hat
dbosanac@redhat.com
Twitter: @dejanb
Blog: http://sensatic.net
ActiveMQ in Action: http://www.manning.com/snyder/


On Thu, Jan 3, 2013 at 12:15 AM, pcman312 <pc...@gmail.com> wrote:
> I am looking into AMQ groups and have a question regarding closing a group.
>
> Here is my general setup:
>
> I push a message with a group ID onto a queue. A separate process picks up
> the message and reports the message text and group ID to stdout (it's just a
> sandbox process). That process then sends a message back to that queue with
> the same group ID and JMSXGroupSeq set to -1 to try to close the group. When
> that sandbox process loops again to get the next message, it gets the
> close-group message and processes it as though it's any other ordinary
> message.
>
> This seems counter-intuitive to me. If I am trying to close out a group, I
> don't want the process to receive the close-group message because it ends up
> meaning that I'll never truly close a group, I'll only move the group
> between the consumers because the same group ID is sent back out to the
> broker and back down to one of the consumers.
>
> Am I doing something wrong here, or am I misinterpreting closing a group?
>
>
>
> --
> View this message in context: http://activemq.2283324.n4.nabble.com/Closing-an-ActiveMQ-Group-tp4661244.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.