util nodes will be set to a rate limited state after this point the health of the system will be evaluated by querying the number of orders that were retried successfully versus the number of orders that were retried and requeued since the nodes were all set to open if a percentage of these requests greater than a configurable threshold p are successful the util node circuit breakers will be set to closed if the percentage of successful requests is below the threshold it indicates that the system is not yet healthy and the util nodes circuit breakers will be set to open again once the util node circuit breakers are in a closed state they will remain in this state until the size of the queue drops below a configurable size q2 at which point the shopper nodes will be set to a rate limited state if instead the size of the queue increases to above the limit q1 indicating that the system is once again unhealthy the util node circuit breaker will be set to open again when the shopper nodes are in the rate limited state and the queue size drops to below a low configurable size q3 the shopper node circuit breaker will return to a closed state table 2 describes these configurable and calculated parameters the specified configurable values are set in a config properties file data primarily time values counts and response results failures or successful attempts and data about them is.