What does "Warning WorkingSet: Virtual Memory is . . . " log line mean?

Sonja_Bauernfeind — Mon, 31 Mar 2025 09:14:32 GMT

The Qlik Sense Engine or QlikView Server service may register the following warnings in the logs:

Warning WorkingSet: Virtual Memory is growing beyond parameters
Warning WorkingSet: Virtual Memory is growing CRITICALLY beyond parameters
Warning WorkingSet: Possible cache depletion detected. Depletion factor=1.0

Environment

Resolution

The host operating system may be running out of sufficient resources for the Engine to perform its tasks. The numbers supplied by the system indicate the current usage of memory by the Engine service against the Low Working Set Limit configured for the Qlik Engine.

The depletion warning indicates that a memory load needs to be addressed, such as through purging more aggressively since the cache memory has dramatically reduced. So, it is an early warning to free the memory needed by the generic cache.

Example after startup:

Information WorkingSet: Configured Working Set Size is 4.200-5.400 GB (setting 70%-90%)

Where 70% is the (default) Low limit, translating to 4.200 GB.

Warning WorkingSet: Virtual Memory is growing beyond parameters - 5.205(4.200) GB
Warning WorkingSet: Virtual Memory is growing CRITICALLY beyond parameters - 5.496(4.200) GB

Additional Resources

Explanation of Memory in Sense: Qlik Engine Memory Management
Determining requirements: How Much Memory Is Required For A Qlik Server Deployment?

Re: What does "Warning WorkingSet: Virtual Memory is . . . " log line mean?

korsikov — Fri, 28 Mar 2025 07:35:17 GMT

Dear @Sonja_Bauernfeind
In the topic I see the term "relocations apps". What does it mean? In single node cluster? Does it mean that some app will be unloaded from memory?

Re: What does "Warning WorkingSet: Virtual Memory is . . . " log line mean?

Sonja_Bauernfeind — Mon, 31 Mar 2025 09:15:34 GMT

Hello @korsikov

I've rephrased the article slightly to update it. The "relocations apps" was removed as it was not relevant (I believe this may have been a copy error).

All the best,
Sonja

article What does "Warning WorkingSet: Virtual Memory is . . . " log line mean? in Official Support Articles

What does "Warning WorkingSet: Virtual Memory is . . . " log line mean?

Environment

Resolution

Additional Resources

Re: What does "Warning WorkingSet: Virtual Memory is . . . " log line mean?

Re: What does "Warning WorkingSet: Virtual Memory is . . . " log line mean?