1161 The LOCK_ORDER Tool • lock_order Whether to enable the LOCK_ORDER tool at runtime. If  lock_order  is disabled (the default), no other LOCK_ORDER system variables have any effect. If  lock_order  is enabled, the other system variables configure which LOCK_ORDER features to enable. If  lock_order  is enabled, an error is raised if the server encounters a lock-acquisition sequence that is not declared in the lock-order graph. • lock_order_debug_loop Whether the LOCK_ORDER tool causes a debug assertion failure when it encounters a dependency that is flagged as a loop in the lock-order graph. • lock_order_debug_missing_arc Command-Line Format --lock-order-debug-missing-arc[={OFF| ON}] Command-Line Format --lock-order-debug-loop[={OFF|ON}] Introduced 8.0.17 System Variable lock_order_debug_loop Scope Global Dynamic No SET_VAR  Hint Applies No Type Boolean Default Value OFF Command-Line Format --lock-order[={OFF|ON}] Introduced 8.0.17 System Variable lock_order Scope Global Dynamic No SET_VAR  Hint Applies No Type Boolean Default Value OFF Variable Name Variable Type Variable Scope lock_order_dependencies File name Global lock_order_extra_dependencies File name Global lock_order_output_directory Directory name Global lock_order_print_txt Boolean Global lock_order_trace_loop Boolean Global lock_order_trace_missing_arc Boolean Global lock_order_trace_missing_key Boolean Global lock_order_trace_missing_unlock Boolean Global