vCAC 5.2: DEM-O crashing after 4 ping attempts to load balanced repository

[christianpg]

Hi there

I have a load-balanced setup where two IIS services hosting the repository are load balanced by Netscaler.

Once in a while, there is a hick-up on Netscaler that replies to the DEM-O with "HTTP 401 - Unauthorized access" on requests from DynamicOps.DWE.Orchestrator.OrchestratorConnection.PerformPing()

I suspect that Netscaler, somehow, is having problems with it's AD authentication...

The end result is that the DEM-O "crashes" and I haven't figured out how to make it work again without restarting the server. Restarting the service, only, does not help...

Which services must be restarted to get it up again? Any .Net service that I have missed?

Any tuning of the DEM-O configuration that could make it more resilient?

- Number of failed attempts?

- Sleep time between each attempt?

[christianpg]

A correction about the load balancer and AD: The authentication against AD is, of course, not done on the actual LB, but the IIS behind hit. In other words: no integration between LB/AD, ONLY IIS/AD. If the authentication process breaks somehow, because of the LB remains unanswered.