dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/loadbalance/
ConsistentHashLoadBalance.java
![image](https://user-images.githubusercontent.com/30815149/55045041-740f4980-5077-11e9-8b6c-7a2b18b0d58e.png)
我看其他地方都是用Constants进行替换，这里是不是可以使用Constants类里的属性进行替换
public static final String TIMESTAMP_KEY = "timestamp";
    public static final String REMOTE_TIMESTAMP_KEY = "remote.timestamp";
    public static final String WARMUP_KEY = "warmup";
    public static final int DEFAULT_WARMUP = 10 * 60 * 1000;
    public static final String CHECK_KEY = "check";
    public static final String REGISTER_KEY = "register";
    public static final String SUBSCRIBE_KEY = "subscribe";
    public static final String GROUP_KEY = "group";
    public static final String PATH_KEY = "path";
    public static final String INTERFACE_KEY = "interface";
    public static final String INTERFACES = "interfaces";
    public static final String GENERIC_KEY = "generic";
    public static final String FILE_KEY = "file";
    public static final String DUMP_DIRECTORY = "dump.directory";
    public static final String WAIT_KEY = "wait";
    public static final String CLASSIFIER_KEY = "classifier";
    public static final String VERSION_KEY = "version";
    public static final String REVISION_KEY = "revision";
    public static final String DUBBO_VERSION_KEY = "dubbo";
    public static final String HESSIAN_VERSION_KEY = "hessian.version";
    public static final String DISPATCHER_KEY = "dispatcher";
    public static final String CHANNEL_HANDLER_KEY = "channel.handler";
    public static final String DEFAULT_CHANNEL_HANDLER = "default";
    public static final String SERVICE_DESCIPTOR_KEY = "serviceDescriptor";
    public static final String ANY_VALUE = "*";
    public static final String COMMA_SEPARATOR = ",";
    public static final Pattern COMMA_SPLIT_PATTERN = Pattern
            .compile("\\s*[,]+\\s*");
    public final static String PATH_SEPARATOR = "/";
    public final static String PROTOCOL_SEPARATOR = "://";