springboot+dubbo项目启动项目时报错 zookeeper not connected

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已于 2023-12-04 00:00:05 修改 · 1.9k 阅读

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文章标签：

#dubbo #springboot #zookeeper

于 2023-06-27 23:23:40 首次发布

文章描述了一个使用Dubbo框架的项目在通过VPN连接公司网络时遇到Zookeeper连接失败的问题。报错信息显示为`zookeepernotconnected`。通过分析源码，发现是`client.blockUntilConnected()`方法在3秒内未建立连接导致的超时异常。解决方案是增大连接超时时间，将Dubbo配置中的`timeout`参数调至60000毫秒，分别在config-center、metadata-report和registry中设置，从而解决了问题。

现象

项目在公司网络启动时，能正常启动。但通过vpn连接到公司网络时却无法启动报下面的错误java.lang.IllegalStateException: zookeeper not connected。

Caused by: java.lang.IllegalStateException: zookeeper not connected
	at org.apache.dubbo.remoting.zookeeper.curator.CuratorZookeeperClient.<init>(CuratorZookeeperClient.java:84)
	at org.apache.dubbo.remoting.zookeeper.curator.CuratorZookeeperTransporter.createZookeeperClient(CuratorZookeeperTransporter.java:26)
	at org.apache.dubbo.remoting.zookeeper.AbstractZookeeperTransporter.connect(AbstractZookeeperTransporter.java:68)
	at org.apache.dubbo.configcenter.support.zookeeper.ZookeeperDynamicConfiguration.<init>(ZookeeperDynamicConfiguration.java:66)
	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.base/java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1705)
	at org.apache.dubbo.common.config.configcenter.AbstractDynamicConfigurationFactory.getDynamicConfiguration(AbstractDynamicConfigurationFactory.java:39)
	at org.apache.dubbo.common.config.configcenter.DynamicConfiguration.getDynamicConfiguration(DynamicConfiguration.java:224)
	at org.apache.dubbo.config.bootstrap.DubboBootstrap.prepareEnvironment(DubboBootstrap.java:1024)
	at org.apache.dubbo.config.bootstrap.DubboBootstrap.startConfigCenter(DubboBootstrap.java:619)
	at org.apache.dubbo.config.bootstrap.DubboBootstrap.initialize(DubboBootstrap.java:521)
	at org.apache.dubbo.config.ReferenceConfig.init(ReferenceConfig.java:244)
	at org.apache.dubbo.config.ReferenceConfig.get(ReferenceConfig.java:206)
	at org.apache.dubbo.config.spring.beans.factory.annotation.ReferenceAnnotationBeanPostProcessor.doGetInjectedBean(ReferenceAnnotationBeanPostProcessor.java:165)
	at com.alibaba.spring.beans.factory.annotation.AbstractAn