public String brokerIdsPathOf(final int brokerId, final int slaveId) {
        return this.brokerIdsPath + "/" + brokerId + (slaveId >= 0 ? "/slave" + slaveId : "/master");
    }
Master config file checksum path

@param brokerId
@return
metamorphosis-commons/src/main/java/com/taobao/metamorphosis/utils/MetaZookeeper.java