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

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Sonja_Bauernfeind
Digital Support

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

Last Update:

Mar 31, 2025 5:14:32 AM

Updated By:

Sonja_Bauernfeind

Created date:

Apr 5, 2018 9:45:17 AM

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?


 

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Comments
korsikov
Partner - Specialist III

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? 

Sonja_Bauernfeind
Digital Support

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