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QlikView 12.10 added 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 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 prioritized?
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