public void clear() {
        writeLock.lock();
        try {
            this.strFlowCtrlInfo = "";
            this.flowCtrlRuleSet.clear();
            this.flowCtrlId.set(TBaseConstants.META_VALUE_UNDEFINED);
            this.qryPriorityId.set(TBaseConstants.META_VALUE_UNDEFINED);
        } finally {
            writeLock.unlock();
        }
    }
Set query priority id value
@param qryPriorityId   need to set value
inlong-tubemq/tubemq-core/src/main/java/org/apache/inlong/tubemq/corebase/policies/FlowCtrlRuleHandler.java