One of my customer reported a problem that caused one of their child nothing server to run at 100% CPU and consume almost all memory (out of 32GiB available).
I first looked at the timing (it was reported last Friday) and I thought this was possibly linked to the PMImport release as last week we had Patch Tuesday (so we released the PMImport Wednesday and replicated it to the child server Thursday evening.
But this was not it. First the memory ballooning problem happened on 3 different processes: the w3wp pools for the Altiris-NS-Agent and TaskManagement as well as the AeXSvc itself.
With all three processes running we would see large chunks of memory being released in a clean drop and go right back up in after nice curve. This was because the 3 processes were fighting for the scarce memory resources and causing each other to have to be scavenged every now and then.
Stopping on of the application pool pegged the memory to ~12 GiB for each of the other...