Increasing the stack size on Windows and Linux systems
Increase the stack size on Windows and Linux® systems by setting the MQSI_THREAD_STACK_SIZE environment variable to an appropriate value.
About this task
When you restart integration nodes that are running on the system, they use the new value.
The value, in bytes, of MQSI_THREAD_STACK_SIZE that you set is used for every thread that is created in a DataFlowEngine process. If the integration server has many message flows assigned to it, and you set a large value for MQSI_THREAD_STACK_SIZE, the DataFlowEngine process needs a large amount of storage for the stacks.
Set this environment variable to at least 48 KB. The
default values are: