[HighAvailabilityService.exe extreme memory usage]

I have a ticket open with Citrix on this, but they say the have no other reports of it happening, so looking for confirmation or is it just my environment.

 

Delivery Controllers running 2012R2 with 20GB RAM assigned.

Hyper-V

Citrix 7.12

LHC enabled

~1000 active brokered connections

 

Restarting the High Availability Service, it starts out using the documented amount of memory at ~1.2 GB. Over the next few days it climbs up, currently using ~8GB on each of Delivery Controllers. Monitoring to watch memory usage continue to grow, but based on prior experience, it will continue using more memory until all memory is used on the server. 

Does it continue to grow until all available memory is used then stop just maintain? 

 

Again, just looking for evidence in other environments, because what I see is that it grows to fill available memory, but Citrix docs say it should only use ~1.2GB of memory. 

 

https://docs.citrix.com/en-us/xenapp-and-xendesktop/7-12/manage-deployment/local-host-cache.html

RAM size

The LocalDB service can use approximately 1.2 GB of RAM (up to 1 GB for the database cache, plus 200 MB for running SQL Server Express LocalDB). The High Availability Service can use up to 1 GB of RAM if an outage lasts for an extended interval with many logons occurring (for example, 12 hours with 10K users). These memory requirements are in addition to the normal RAM requirements for the Controller, so you might need to increase the total amount of RAM capacity.