### Environment

* Dubbo version: 2.7.15


### Steps to reproduce this issue

Dubbo一致性Hash loadbalance存在缺陷，会导致CPU100%

Due to a defect in the hash load balance of Dubbo consistency, the CPU usage is 100%.

*     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.dubbo.rpc.cluster.loadbalance;
import org.apache.dubbo.common.URL;
import org.apache.dubbo.common.io.Bytes;
import org.apache.dubbo.rpc.Invocation;
import org.apache.dubbo.rpc.Invoker;
import org.apache.dubbo.rpc.support.RpcUtils;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.atomic.AtomicLong;
import static org.apache.dubbo.common.constants.CommonConstants.COMMA_SPLIT_PATTERN;
/**
 * ConsistentHashLoadBalance
 */
public class ConsistentHashLoadBalance extends AbstractLoadBalance {
    public static final String NAME = "consistenthash";
    /**
     * Hash nodes name
     */
    public static final String HASH_NODES = "hash.nodes";