tx-manager重启，客户端会重复

- [ ] I have searched the [issues](https://github.com/codingapi/tx-lcn/issues) of this repository and believe that this is not a duplicate.

### 1. Bug Description

我tx-manager连接配置的是域名，修改成主机地址没有问题了，但是问题原因是什么呢

### 2. Environment:
- JDK version: 8
- OS: MAC
- TX-LCN version: 5.0.2
- Others: idea

### 3. Exception Stacktrace

```
2019-11-11 22:51:31.292 INFO [com.danke.galaxy-danke-galaxy-common-transaction,,,] 6767 --- [m-rpc-service-0] c.c.t.t.t.transaction.InitClientService : Registered TC: com.danke.galaxy-danke-galaxy-demo-c1:30001
2019-11-11 22:51:31.292 INFO [com.danke.galaxy-danke-galaxy-common-transaction,,,] 6767 --- [m-rpc-service-2] c.c.t.t.t.transaction.InitClientService : Registered TC: com.danke.galaxy-danke-galaxy-demo-c2:30002
2019-11-11 22:51:31.292 INFO [com.danke.galaxy-danke-galaxy-common-transaction,,,] 6767 --- [m-rpc-service-1] c.c.t.t.t.transaction.InitClientService : Registered TC: com.danke.galaxy-danke-galaxy-demo-c2:30002
2019-11-11 22:51:31.300 INFO [com.danke.galaxy-danke-galaxy-common-transaction,,,] 6767 --- [m-rpc-service-1] c.c.t.t.s.s.impl.ManagerServiceImpl : Acquired machine id 64, max machine id is: 2251799813685246
2019-11-11 22:51:31.307 INFO [com.danke.galaxy-danke-galaxy-common-transaction,,,] 6767 --- [m-rpc-service-0] c.c.t.t.s.s.impl.ManagerServiceImpl : Acquired machine id 65, max machine id is: 2251799813685246
2019-11-11 22:51:31.310 INFO [com.danke.galaxy-danke-galaxy-common-transaction,,,] 6767 --- [m-rpc-service-2] c.c.t.t.s.s.impl.ManagerServiceImpl : Acquired machine id 66, max machine id is: 2251799813685246
```

### 4. Tour Idea