SunJiFengPlus opened a new issue #2921:
URL: https://github.com/apache/incubator-dolphinscheduler/issues/2921
**Describe the bug**
problem in ```OSUtils::getHost```,
``` java
try {
return InetAddress.getLocalHost().getHostAddress();
} catch (UnknownHostException e) {
logger.error(e.getMessage(),e);
}
return null;
```
sometimes ```InetAddress.getLocalHost().getHostAddress();``` return
127.0.0.1, sometimes return other address, when using other address sending a
heartbeat to zookeeper, throw ```KeeperException$NoNodeException```. <br>
---
问题在 ```OSUtils::getHost``` 这个方法中,
```InetAddress.getLocalHost().getHostAddress(); ```这个方法有时候返回的是 127.0.0.1,
但是有时候会返回其他IP. 当以其他IP发送心跳时候就会抛 ```KeeperException$NoNodeException```<br>
**To Reproduce**
i dont kwon how to reproduce, but it really happened on my mac, i just
start application, after a while, application throw
```KeeperException$NoNodeException```. On debug mode, i find problem in
```OSUtils::getHost```<br>
---
不太清楚如何在其他电脑上复现, 但确实发生在我的Mac上, 启动应用后过一会就会抛
```KeeperException$NoNodeException```. 在Debug的时候我定位到问题出在 ```OSUtils::getHost```
<br>
**Which version of Dolphin Scheduler:**
```<version>1.2.1-SNAPSHOT</version>```
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