IIS 7 & IIS 8
Step to achive 2tier WebFarmFramework with ARR including HA using NLB
Last post Jan 22, 2013 07:39 PM by znerses
May 02, 2012 02:13 PM|LINK
Aug 24, 2012 02:41 PM|LINK
Good presentation. Maybe a little shortened but the big points are there!
I prepared the same architecture by gathering information on my own (I didn't found your post before today) :
2 ARR Controllers, 1 Primary and 3 secondary nodes.
Everything in my setup confirms what you are explaining.
Only difference is that I created a share on a NAS to put the Shared Configuration files. So that no problem if the primary controller totally crashes.
The only thing left to do is set up NLB that I just installed today on my ARR's.
I tested to have the two controller sharing the same confirguration files for two weeks now to be sure they didn't messed up the files.
All ok untill yesterday. What happened yesterday : suddenly the web sites where not served anymore and both ARR's where reporting the servers as NO @ "ready for loadbalancing". In Monitoring section, the four nodes were set to Healthy but Unavailable.
I tried to set them all manually to Available and it worked. All websites were served back normally. BUT webfarm server display still says NO at "ready for loadbalancing" until I restarted the webfarmservice on both ARR's. Now everything back to normal ...
I'm trying to analyse logs to see what could have happenned but until now : no clue!
Are you still working wuth this structure ? Experienced problems ?
Aug 26, 2012 10:01 PM|LINK
Sep 13, 2012 09:11 AM|LINK
Thanks for the tip. I'm installing the version 4 right now. So no new version of the WFF since 2.2 ? Just hotfixes ?
I still am testing for stability. NLB not up yet. But everything fine until know. Just once all my nodes got in status unknown but it happened in the weekend and i'm not sure about the cause. It seems to have been a problem with contact to the shared config
on our NAS.
Sep 26, 2012 06:33 AM|LINK
Sep 30, 2012 06:14 PM|LINK
Oct 12, 2012 09:01 AM|LINK
I specified the complete downlevel path to my shared configuration files and since then I only had the problem once (in 1 month time)) but it happend at night and the controller found his way back on its own to the files after like 15 minutes ...
Oct 29, 2012 08:48 PM|LINK
Oct 29, 2012 09:16 PM|LINK
Nov 01, 2012 11:02 PM|LINK