Problems with load balanced site

Karl Adriansson

Vote:

Hi,

We have a site running EPiServer CMS 5 R2 SP 2 on two servers. However the cache synchronization isn't working as supposed. I have read the article “Cache Update and Load Balancing for EPiServer CMS 5” (http://world.episerver.com/Articles/Items/Cache-Update-and-Load-Balancing-for-EPiServer-CMS-5/) without any new ideas to the source of the problem.

I have also used the “EPiServer Remote Event Listener”-tool and can see that events is correctly sent and received by the other machine when I publish a page in EPiServer. The problem is that the cache isn’t invalidated on the second server.

Any suggestions for how to proceed with the troubleshooting is highly appreciated. =)

Regards,

Karl

Hi,

I have also used the “EPiServer Remote Event Listener”-tool and can see that events is correctly broadcasted and received by the other machine when I publish a page in EPiServer. The problem is that the cache isn’t invalidated on the second server.

Any suggestions for how to proceed with the troubleshooting is highly appreciated. =)

Regards,Karl

#42789

Sep 01, 2010 14:05

Petter Klang

Vote:

Hi Karl,

What IIS are you running on 6 or 7? Also are you using the udp protocol for sending the packages?

#42790

Sep 01, 2010 14:32

Magnus Rahl

Vote:

Make sure both servers use the same value for the siteid attribute in site settings in web.config (episerver.config in CMS 6)

#42791

Sep 01, 2010 14:47

Karl Adriansson

Vote:

Thanks for your replies!

The sites are runnin on a Windows 2008 server with IIS 7 in Integrated Pipeline Mode, the udp protocol is used for sending the packages (enableRemoteEvents is set to true and endpoints are configured to send/receive using udp under system.serviceModel).

I have also double checked so the siteId-attribute is the same on both servers.

#42809

Sep 02, 2010 8:35

Petter Klang

Vote:

Hi Karl,

As your using the Integrated Pipeline Mode the EventSubscriberHostModule that you added according to the article will not be used. instead you need to add this under your module tag.

<system.webServer>

#42812

Sep 02, 2010 9:41

Karl Adriansson

Vote:

All http handlers and modules are registered under the system.webServer section so that shouldn't be the problem. The runAllManagedModulesForAllRequests-attribute is set to true as well...

Any other ideas?

#42816

Sep 02, 2010 11:28

Petter Klang

Vote:

No running out of ideas. Are you able to post your web.configs for the two servers?

#42821

Sep 02, 2010 11:42

Karl Adriansson

Vote:

The web.config-files is identical on the two servers, a copy of the file is avaiable at http://pastebin.com/S60A85UL.

#42823

Sep 02, 2010 13:14