DevForce Community Forum : Push Notification on Load Balanced servers http://www.ideablade.com/forum/ This is an XML content feed of; DevForce Community Forum : DevForce 2010 : Push Notification on Load Balanced servers Fri, 01 May 2026 08:36:07 -700 Mon, 07 Nov 2011 13:08:05 -700 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 9.69 360 www.ideablade.com/forum/RSS_post_feed.asp?TID=3064 DevForce Community Forum http://www.ideablade.com/forum/forum_images/IdeaBlade_logo_tm.png http://www.ideablade.com/forum/ Push Notification on Load Balanced servers : Hi George,Correct, because we... http://www.ideablade.com/forum/forum_posts.asp?TID=3064&PID=12019#12019 Author: ting
Subject: 3064
Posted: 07-Nov-2011 at 1:08pm

Hi George,

Correct, because we can't control server affinity in Azure, push notification won't work with a multi-instance Azure deployment. (However, it should be fine with other providers/deployments where you can turn on session-aware load balancing.) For this to work in Azure, we'll have to redesign push to use another mechanism, so this won't be available in the near or mid-term. Sorry for the bad news. We can credit your account if you want to remove the Data Center feature from your license.

Ting


]]> Mon, 07 Nov 2011 13:08:05 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3064&PID=12019#12019 Push Notification on Load Balanced servers : Hi SilvioCurrently we can't... http://www.ideablade.com/forum/forum_posts.asp?TID=3064&PID=12012#12012 Author: GeorgeB
Subject: 3064
Posted: 04-Nov-2011 at 4:22am

Hi Silvio
 
Currently we can't use the DevForce push notification in Azure (unless we stick to one server instance).
 
This feature request has been outstanding for a quite a while. Will we see it in the near future?
 
We bought a new DF load balancing license but without the push notification it was a waste.
 
Kr
George
 
 
]]> Fri, 04 Nov 2011 04:22:40 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3064&PID=12012#12012 Push Notification on Load Balanced servers : Hi James,Unfortunately, in a load... http://www.ideablade.com/forum/forum_posts.asp?TID=3064&PID=11954#11954 Author: sbelini
Subject: 3064
Posted: 27-Oct-2011 at 3:36pm

Hi James,

Unfortunately, in a load balanced environment BOSes do not share notification subscribers. 

DevForce's Push feature uses WCF duplex communication support where the server maintains session information for each client. This does not scale to a load balanced environment.
Our Push notification also maintains its own “server affinity” in keeping a list of subscribed clients.

We have a feature request to address this issue. 
In the meantime you could implement your custom pub-sub service using Azure Service Bus (http://msdn.microsoft.com/en-us/library/dd628757.aspx) and/or the Publish-Subscribe Framework from IDesign (http://idesign.net/idesign/DesktopDefault.aspx?tabindex=5&tabid=11).

Regards,
   Silvio.


]]> Thu, 27 Oct 2011 15:36:51 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3064&PID=11954#11954 Push Notification on Load Balanced servers : We are using v6.0.6.0I have... http://www.ideablade.com/forum/forum_posts.asp?TID=3064&PID=11951#11951 Author: JamesM
Subject: 3064
Posted: 27-Oct-2011 at 8:37am

We are using v6.0.6.0

I have a couple questions on how the BOS operates its Notification Service when the BOS resides on 2 or more servers in a load balanced configuration.

Does the BOSs share its notification subscribers automatically with other BOSs in a load balanced environment?  

Is there a way to force the BOSs to share notification subscribers if its not automatic?

For extra information: I am using a push notification that is fired from a EntityServerSaveInterceptor when a specific field on an Entity is changed when saving. 

Thank you,
James 


Edited by JamesM - 27-Oct-2011 at 8:37am]]> Thu, 27 Oct 2011 08:37:10 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3064&PID=11951#11951