Hello,
The engine consuming lots of memory is usually due to two reasons:
- High usage (Too many applications loaded in memory, too many large applications,...)
- A specific application or operation in an application consuming quickly a large amount of memory
To determine which one of them is the one you will need to understand how quickly the memory has been consumed.
Was it increasing progressively throughout the day until it reached 100% or did it spike in a few minutes?
I usually use Performance Monitor to determine that (see https://support.qlik.com/articles/000004029)
But you can also use the operation monitor application for that.
So if it's a progressive consumption you are facing, you probably want to take a look if you have large applications in your environment and how many are being loaded throughout the day. Perhaps 160 GB is not enough anymore for the usage of your platform. There are also a number of optimization you can apply in the engine settings to reduce/control the memory consumption documented here https://help.qlik.com/en-US/sense/February2019/Subsystems/ManagementConsole/Content/Sense_QMC/edit-e...
If it's spike then I would suggest using Telemetry to determine which application or operation consumed all the memory. Perhaps the application in question needs to be optimized. See https://support.qlik.com/articles/000044757
Hope this helps!
Bastien Laugiero
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