This produced sort of a saw-tooth pattern (that at the moment I can’t find a screenshot of). Watching the system in Task Manager, the memory initially started its usual slow-and-steady climb, but then it quickly (within 30 seconds) fell and remained low for another 30 seconds or so, and then it would climb again for about 30 seconds, fall, repeat. I did a Resume and Start on the node I’d pulled out using NLB Manager, and watched Perfmon and Task Manager to see how it fared. Everything looked great (as it should, since it was now configured exactly like the stage site which had also tested OK). I pulled one server out of the cluster, copied the stage site to the production site, flipped the appdomain to. These are pretty much the steps I followed to test the move to.
#Iis event id 1000 how to#
I have another post detailing how to perform a rolling upgrade of a web farm using Windows Network Load Balancer. Performing Updates to a Web Farm using Windows NLB This was starting to look like a walk in the park. I deployed to stage, updated IIS there to set the appdomain to. I checked everything in and the build server confirmed everything looked good. With that done, I was able to test the application locally and all appeared well. The biggest issue was replacing instances of my own Tuple class with the new Tuple that is now part of the. The application has few individual ASP.NET pages, and in any event the upgrade from ASP.NET 3.5 to ASP.NET 4.0 was fairly painless. NET 4, with little significant variation. This, while not ideal, represented the status quo for the application and was what I expected to see after upgrading the application to. Note in particular the Windows Task Manager behavior, with a steadily climbing memory footprint eventually followed by a “cliff” when Cache Trims occur and memory is freed. NET 4 in my post about monitoring and tuning asp.net caching. The application makes heavy use of ASP.NET caching, and you can see some charts showing the behavior prior to moving to. The application in question is a fairly high traffic site, with several servers in a Network Load Balanced / Web Farm environment, and each server getting 50-100 ASP.NET requests per second, typically. This is basically an account of what I did, and how I ultimately resolved the issue, for my own future reference and to assist others who may face similar situations. Further inspection revealed that IIS was actually crashing under load, leaving a cryptic message in the event log but no other clues. In the course of doing so, I was surprised, despite having tested everything thoroughly in a staging environment, to find that under production loads, the system was erratic and slow to respond to requests.
#Iis event id 1000 update#
Last week I attempted to update a high-traffic production ASP.NET application to ASP.NET 4.