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Startup Command and Parameter Reference
Startup Parameter Descriptions : Error Stack (-errorstack)

Error Stack (-errorstack)

Use Error Stack (-errorstack) to allow error objects to save the ABL call stack in the CallStack property of an error object at the time the AVM generates the error object.
When -errorstack is specified, the ERROR-STACK-TRACE attribute of the SESSION handle is set to TRUE. The default value for this attribute is FALSE. While saving the call stack is a useful debugging feature, it can also consume resources and can potentially affect performance. Enabling ERROR-STACK-TRACE with this startup parameter is not recommended in a production environment.
Operating system and syntax
Use with
Maximum value
Minimum value
Single-user default
Multi-user default
Client Session