Qlik Community

Ask a Question

Support Knowledge Base

Search or browse our knowledge base to find answers to your questions ranging from account questions to troubleshooting error messages. The content is curated and updated by our global Support team

Announcements
Join us March 10th, 7 ways modern analytics can help you take smarter action. REGISTER NOW

QlikView Tasks are not executed as expected and are shown in status Queued

Sonja_Bauernfeind
Digital Support
Digital Support

QlikView Tasks are not executed as expected and are shown in status Queued

Tasks are not being executed as expected, even if enough free engines should be available.

In the QlikView Management Console and task overview, a task is shown as Queued:

  User-added image User-added image

In the QlikView Distribution Service LoadBalancer_ log file, the following lines may be written:

 Information    LoadMeasurer: The system is currently overloaded.
 Information    LoadMeasurer: The system is not overloaded anymore.



Environment: 

 

Resolution:

 

QlikView includes an overload protection feature to its Distribution Service. This allows for task queues. It also introduced a queue system, which will allow for automatic staggering of scheduled tasks to prevent resource starvation on the host system.

If the values need to be reviewed and/or modified:

Review the Distribution Service configuration file found in C:\Program Files\QlikView\Distribution Service\QVDistributionService.exe.config

The default values are:

<!-- If the CPU usage % goes above this value the machine is considered overloaded and no new tasks will be started. -->
<add key="CpuOverloadLimit" value="75" />
<!-- If the memory usage % goes above this value the machine is considered overloaded and no new tasks will be started. -->
<add key="MemoryOverloadLimit" value="90" />


Note! Modifying these values may lead to the consequential task and reload failures. We suggest to allow the operating system and QlikView Distribution service to manage load as recommended. 

More information on how to prioritize tasks and set up Distribution Groups can be found in Queueing of reload and distribution tasks leads to chained events not being triggered. Can tasks be ...

Labels (1)
Version history
Revision #:
3 of 3
Last update:
2 weeks ago
Updated by:
 
Contributors