- [ ] I have searched the [issues](https://github.com/apache/incubator-dubbo/issues) of this repository and believe that this is not a duplicate.
- [ ] I have checked the [FAQ](https://github.com/apache/incubator-dubbo/blob/master/FAQ.md) of this repository and believe that this is not a duplicate.

### Environment

* Dubbo version: xxx
* Operating System version: xxx
* Java version: xxx

### Steps to reproduce this issue

1. xxx
2. xxx
3. xxx

Pls. provide [GitHub address] to reproduce this issue.

### Expected Result

What do you expected from the above steps？

### Actual Result

What actually happens?

If there is an exception, please attach the exception trace:

```
Just put your stack trace here!
```

}
            try {
                doDisConnect();
            } catch (Throwable e) {
                logger.warn(e.getMessage(), e);
            }
        } finally {
            connectLock.unlock();
        }
    }
    @Override
    public void reconnect() throws RemotingException {
        if (!isConnected()) {
            connectLock.lock();
            try {
                if (!isConnected()) {
                    disconnect();
                    connect();
                }
            } finally {
                connectLock.unlock();
            }
        }
    }
    @Override
    public void close() {
        try {
            if (executor != null) {
                ExecutorUtil.shutdownNow(executor, 100);
            }