dubbo admin 从github上挡下来之后，启动dubbo admin server发现使用无法启动做那个是提示zk 链接超时，看设置相关超时时间应该是没问题，此处暂时没有深入了解底层代码逻辑
有兴趣的可以看一下：
错误提示：zookeeper not connected错误日志：
2022-02-22 17:03:09.997 ERROR 21688 --- [ main] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dubboBootstrapApplicationListener': Initialization of bean failed; nested exception is java.lang.IllegalStateException: zookeeper not connected
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:602)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:516)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:324)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:207)
at org.springframework.context.event.AbstractApplicationEventMulticaster.retrieveApplicationListeners(AbstractApplicationEventMulticaster.java:247)
at org.springframework.context.event.AbstractApplicationEventMulticaster.getApplicationListeners(AbstractApplicationEventMulticaster.java:204)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:134)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127)
at org.springframework.context.support.AbstractApplicationContext.registerListeners(AbstractApplicationContext.java:842)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:548)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:755)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:402)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:312)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1247)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1236)
at org.apache.dubbo.admin.DubboAdminApplication.main(DubboAdminApplication.java:34)
Caused by: java.lang.IllegalStateException: zookeeper not connected
at org.apache.dubbo.remoting.zookeeper.curator.CuratorZookeeperClient.(CuratorZookeeperClient.java:87)
at org.apache.dubbo.remoting.zookeeper.curator.CuratorZookeeperTransporter.createZookeeperClient(CuratorZookeeperTransporter.java:26)
at org.apache.dubbo.remoting.zookeeper.AbstractZookeeperTransporter.connect(AbstractZookeeperTransporter.java:69)
at org.apache.dubbo.configcenter.support.zookeeper.ZookeeperDynamicConfiguration.(ZookeeperDynamicConfiguration.java:68)
at org.apache.dubbo.configcenter.support.zookeeper.ZookeeperDynamicConfigurationFactory.createDynamicConfiguration(ZookeeperDynamicConfigurationFactory.java:43)
at org.apache.dubbo.common.config.configcenter.AbstractDynamicConfigurationFactory.lambda$getDynamicConfiguration$0(AbstractDynamicConfigurationFactory.java:39)
at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660)
at org.apache.dubbo.common.config.configcenter.AbstractDynamicConfigurationFactory.getDynamicConfiguration(AbstractDynamicConfigurationFactory.java:39)
at org.apache.dubbo.config.bootstrap.DubboBootstrap.getDynamicConfiguration(DubboBootstrap.java:1368)
at org.apache.dubbo.config.bootstrap.DubboBootstrap.prepareEnvironment(DubboBootstrap.java:1336)
at org.apache.dubbo.config.bootstrap.DubboBootstrap.startConfigCenter(DubboBootstrap.java:746)
at org.apache.dubbo.config.bootstrap.DubboBootstrap.initialize(DubboBootstrap.java:562)
at org.apache.dubbo.config.spring.context.DubboBootstrapApplicationListener.initDubboConfigBeans(DubboBootstrapApplicationListener.java:92)
at org.apache.dubbo.config.spring.context.DubboBootstrapApplicationListener.checkCallStackAndInit(DubboBootstrapApplicationListener.java:161)
at org.apache.dubbo.config.spring.context.DubboBootstrapApplicationListener.setApplicationContext(DubboBootstrapApplicationListener.java:145)
at org.springframework.context.support.ApplicationContextAwareProcessor.invokeAwareInterfaces(ApplicationContextAwareProcessor.java:123)
at org.springframework.context.support.ApplicationContextAwareProcessor.postProcessBeforeInitialization(ApplicationContextAwareProcessor.java:100)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:415)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1791)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:594)
..、19 common frames omitted
Caused by: java.lang.IllegalStateException: zookeeper not connected
at org.apache.dubbo.remoting.zookeeper.curator.CuratorZookeeperClient.(CuratorZookeeperClient.java:84)
..、38 common frames omitted
解决方案：调整zk超时时间
dubbo.registry.timeout = 15000dubbo.metadata-report.timeout= 15000