Last image caching in qpid?

[Andrew M <an...@oc384.net>]

I need last image caching as described here:

http://activemq.apache.org/subscription-recovery-policy.html

Does qpid currently support this? Will M3?

 

Thanks,

Andrew

 

RE: Last image caching in qpid?

[Andrew M <an...@oc384.net>]

 
I'd like to start testing w/this functionality as soon as possible.  Is
there anyone who'd find this quick and easy to add to the trunk so I could
start testing it?  I would add it myself but I'm more of a java guy that
C++.  I guess I could take a whack at it but for someone familiar with the
project and C++ it'd be a quick change I'd think.  I just need the broker to
maintain the most recent message in memory(or on disk) and send it out
immediately as the first message upon a new client subscribing to that
topic.   

Any thoughts?

Thanks!
Andrew
 

-----Original Message-----
From: Gordon Sim [mailto:gsim@redhat.com] 
Sent: Friday, August 08, 2008 3:07 AM
To: qpid-dev@incubator.apache.org
Subject: Re: Last image caching in qpid?

Marnie McCormack wrote:
> Anyone else able to comment on the C++ broker wrt to Andrew's question ?

Not supported yet, but we would very much like to get something 
equivalent in for the next release, i.e. M4.

Re: Last image caching in qpid?

[Gordon Sim <gs...@redhat.com>]

Marnie McCormack wrote:
> Anyone else able to comment on the C++ broker wrt to Andrew's question ?

Not supported yet, but we would very much like to get something 
equivalent in for the next release, i.e. M4.

Re: Last image caching in qpid?

[Marnie McCormack <ma...@googlemail.com>]

Hi Andrew,

Thanks for your email.

Our current Java Broker releases will not guarantee FIFO due to behaviou
around client return of pre-fetch behaviour, but M3 will do - which is one
part of the functionality you'd need.

However, we don't (afaik!) have anything captured in JIRA about the Last
Image type behaviour, where subscription to a topic always returns the last
message matching your subscription - the other bit so to speak.

If this is something you'd like to see in Qpid's Java Broker please raise it
as a JIRA and we'll look at it when scoping our next release, which is
likely to scoped soon.

Anyone else able to comment on the C++ broker wrt to Andrew's question ?

Hth,
Regards,
Marnie


On 8/7/08, Andrew M <an...@oc384.net> wrote:
>
> I need last image caching as described here:
>
> http://activemq.apache.org/subscription-recovery-policy.html
>
> Does qpid currently support this? Will M3?
>
>
>
> Thanks,
>
> Andrew
>
>
>
>