zookeeper启动连接到服务第一次会报错，第二次连接就好

2018-10-24 16:03:41,597 ERROR [org.apache.curator.ConnectionState] - Connection timed out for connection string (119.29.58.11:2181) and timeout (5000) / elapsed (5115)
org.apache.curator.CuratorConnectionLossException: KeeperErrorCode = ConnectionLoss
at org.apache.curator.ConnectionState.checkTimeouts(ConnectionState.java:198)
at org.apache.curator.ConnectionState.getZooKeeper(ConnectionState.java:88)
at org.apache.curator.CuratorZookeeperClient.getZooKeeper(CuratorZookeeperClient.java:115)
at org.apache.curator.framework.imps.CuratorFrameworkImpl.getZooKeeper(CuratorFrameworkImpl.java:457)
at org.apache.curator.framework.imps.ExistsBuilderImpl$2.call(ExistsBuilderImpl.java:172)
at org.apache.curator.framework.imps.ExistsBuilderImpl$2.call(ExistsBuilderImpl.java:161)
at org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:107)
at org.apache.curator.framework.imps.ExistsBuilderImpl.pathInForeground(ExistsBuilderImpl.java:158)
at org.apache.curator.framework.imps.ExistsBuilderImpl.forPath(ExistsBuilderImpl.java:148)
at org.apache.curator.framework.imps.ExistsBuilderImpl.forPath(ExistsBuilderImpl.java:36)
at com.alibaba.dubbo.remoting.zookeeper.curator.CuratorZookeeperClient.checkExists(CuratorZookeeperClient.java:117)
at com.alibaba.dubbo.remoting.zookeeper.support.AbstractZookeeperClient.create(AbstractZookeeperClient.java:58)
at com.alibaba.dubbo.registry.zookeeper.ZookeeperRegistry.doRegister(ZookeeperRegistry.java:114)
at com.alibaba.dubbo.registry.support.FailbackRegistry.register(FailbackRegistry.java:131)
at com.alibaba.dubbo.registry.integration.RegistryProtocol.register(RegistryProtocol.java:125)
at com.alibaba.dubbo.registry.integration.RegistryProtocol.export(RegistryProtocol.java:145)
at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:98)
at com.alibaba.dubbo.rpc.protocol.ProtocolListenerWrapper.export(ProtocolListenerWrapper.java:55)
at com.alibaba.dubbo.qos.protocol.QosProtocolWrapper.export(QosProtocolWrapper.java:54)
at com.alibaba.dubbo.rpc.Protocol$Adaptive.export(Protocol$Adaptive.java)
at com.alibaba.dubbo.config.ServiceConfig.doExportUrlsFor1Protocol(ServiceConfig.java:506)
at com.alibaba.dubbo.config.ServiceConfig.doExportUrls(ServiceConfig.java:358)
at com.alibaba.dubbo.config.ServiceConfig.doExport(ServiceConfig.java:317)
at com.alibaba.dubbo.config.ServiceConfig.export(ServiceConfig.java:216)
at com.alibaba.dubbo.config.spring.ServiceBean.onApplicationEvent(ServiceBean.java:123)
at com.alibaba.dubbo.config.spring.ServiceBean.onApplicationEvent(ServiceBean.java:49)
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:151)
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:128)
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:331)
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:773)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:483)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93)
at bhz.test.Provider.main(Provider.java:10)
2018-10-24 16:03:45,635 INFO [org.apache.zookeeper.ClientCnxn] - Opening socket connection to server 119.29.58.11/119.29.58.11:2181. Will not attempt to authenticate using SASL (unknown error)
2018-10-24 16:03:45,652 INFO [org.apache.zookeeper.ClientCnxn] - Socket connection established to 119.29.58.11/119.29.58.11:2181, initiating session
2018-10-24 16:03:45,686 INFO [org.apache.zookeeper.ClientCnxn] - Session establishment complete on server 119.29.58.11/119.29.58.11:2181, sessionid = 0x100062412f60001, negotiated timeout = 60000
2018-10-24 16:03:45,701 INFO [org.apache.curator.framework.state.ConnectionStateManager] - State change: CONNECTED
2018-10-24 16:03:46,754 INFO [com.alibaba.dubbo.registry.zookeeper.ZookeeperRegistry] -  [DUBBO] Subscribe: provider://192.168.101.24:8888/bhz-sys-service/bhz.sys.facade.SysUserFacade?accepts=500&anyhost=true&application=bhz-sys-service&category=configurators&check=false&dubbo=2.6.2&generic=false&interface=bhz.sys.facade.SysUserFacade&methods=testpost,testget,postUser,getUser&organization=dubbox&owner=programmer&pid=18560&server=tomcat&side=provider&threads=500&timestamp=1540368212330, dubbo version: 2.6.2, current host: 192.168.101.24
2018-10-24 16:03:46,805 INFO [com.alibaba.dubbo.registry.zookeeper.ZookeeperRegistry] -  [DUBBO] Notify urls for subscribe url provider://192.168.101.24:8888/bhz-sys-service/bhz.sys.facade.SysUserFacade?accepts=500&anyhost=true&application=bhz-sys-service&category=configurators&check=false&dubbo=2.6.2&generic=false&interface=bhz.sys.facade.SysUserFacade&methods=testpost,testget,postUser,getUser&organization=dubbox&owner=programmer&pid=18560&server=tomcat&side=provider&threads=500&timestamp=1540368212330, urls: [empty://192.168.101.24:8888/bhz-sys-service/bhz.sys.facade.SysUserFacade?accepts=500&anyhost=true&application=bhz-sys-service&category=configurators&check=false&dubbo=2.6.2&generic=false&interface=bhz.sys.facade.SysUserFacade&methods=testpost,testget,postUser,getUser&organization=dubbox&owner=programmer&pid=18560&server=tomcat&side=provider&threads=500&timestamp=1540368212330], dubbo version: 2.6.2, current host: 192.168.101.24
2018-10-24 16:03:46,865 INFO [com.alibaba.dubbo.config.AbstractConfig] -  [DUBBO] Export dubbo service bhz.sys.facade.SysUserFacade to local registry, dubbo version: 2.6.2, current host: 192.168.101.24
2018-10-24 16:03:46,865 INFO [com.alibaba.dubbo.config.AbstractConfig] -  [DUBBO] Export dubbo service bhz.sys.facade.SysUserFacade to url dubbo://192.168.101.24:20880/bhz.sys.facade.SysUserFacade?anyhost=true&application=bhz-sys-service&bind.ip=192.168.101.24&bind.port=20880&dubbo=2.6.2&generic=false&interface=bhz.sys.facade.SysUserFacade&methods=testpost,testget,postUser,getUser&optimizer=bhz.sys.serial.SerializationOptimizerImpl&organization=dubbox&owner=programmer&pid=18560&serialization=kryo&side=provider&timestamp=1540368226858, dubbo version: 2.6.2, current host: 192.168.101.24
2018-10-24 16:03:46,865 INFO [com.alibaba.dubbo.config.AbstractConfig] -  [DUBBO] Register dubbo service bhz.sys.facade.SysUserFacade url dubbo://192.168.101.24:20880/bhz.sys.facade.SysUserFacade?anyhost=true&application=bhz-sys-service&bind.ip=192.168.101.24&bind.port=20880&dubbo=2.6.2&generic=false&interface=bhz.sys.facade.SysUserFacade&methods=testpost,testget,postUser,getUser&optimizer=bhz.sys.serial.SerializationOptimizerImpl&organization=dubbox&owner=programmer&pid=18560&serialization=kryo&side=provider&timestamp=1540368226858 to registry registry://119.29.58.11:2181/com.alibaba.dubbo.registry.RegistryService?application=bhz-sys-service&dubbo=2.6.2&organization=dubbox&owner=programmer&pid=18560&registry=zookeeper&timestamp=1540368212313, dubbo version: 2.6.2, current host: 192.168.101.24
2018-10-24 16:03:47,316 INFO [com.alibaba.dubbo.remoting.transport.AbstractServer] -  [DUBBO] Start NettyServer bind /0.0.0.0:20880, export /192.168.101.24:20880, dubbo version: 2.6.2, current host: 192.168.101.24
2018-10-24 16:03:47,323 INFO [com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol] -  [DUBBO] Optimizing the serialization process for Kryo, FST, etc..., dubbo version: 2.6.2, current host: 192.168.101.24
2018-10-24 16:03:47,325 INFO [com.alibaba.dubbo.registry.zookeeper.ZookeeperRegistry] -  [DUBBO] Register: dubbo://192.168.101.24:20880/bhz.sys.facade.SysUserFacade?anyhost=true&application=bhz-sys-service&dubbo=2.6.2&generic=false&interface=bhz.sys.facade.SysUserFacade&methods=testpost,testget,postUser,getUser&optimizer=bhz.sys.serial.SerializationOptimizerImpl&organization=dubbox&owner=programmer&pid=18560&serialization=kryo&side=provider&timestamp=1540368226858, dubbo version: 2.6.2, current host: 192.168.101.24
2018-10-24 16:03:47,354 INFO [com.alibaba.dubbo.registry.zookeeper.ZookeeperRegistry] -  [DUBBO] Subscribe: provider://192.168.101.24:20880/bhz.sys.facade.SysUserFacade?anyhost=true&application=bhz-sys-service&category=configurators&check=false&dubbo=2.6.2&generic=false&interface=bhz.sys.facade.SysUserFacade&methods=testpost,testget,postUser,getUser&optimizer=bhz.sys.serial.SerializationOptimizerImpl&organization=dubbox&owner=programmer&pid=18560&serialization=kryo&side=provider&timestamp=1540368226858, dubbo version: 2.6.2, current host: 192.168.101.24
2018-10-24 16:03:47,423 INFO [com.alibaba.dubbo.registry.zookeeper.ZookeeperRegistry] -  [DUBBO] Notify urls for subscribe url provider://192.168.101.24:20880/bhz.sys.facade.SysUserFacade?anyhost=true&application=bhz-sys-service&category=configurators&check=false&dubbo=2.6.2&generic=false&interface=bhz.sys.facade.SysUserFacade&methods=testpost,testget,postUser,getUser&optimizer=bhz.sys.serial.SerializationOptimizerImpl&organization=dubbox&owner=programmer&pid=18560&serialization=kryo&side=provider&timestamp=1540368226858, urls: [empty://192.168.101.24:20880/bhz.sys.facade.SysUserFacade?anyhost=true&application=bhz-sys-service&category=configurators&check=false&dubbo=2.6.2&generic=false&interface=bhz.sys.facade.SysUserFacade&methods=testpost,testget,postUser,getUser&optimizer=bhz.sys.serial.SerializationOptimizerImpl&organization=dubbox&owner=programmer&pid=18560&serialization=kryo&side=provider&timestamp=1540368226858], dubbo version: 2.6.2, current host: 192.168.101.24
这个连接启动时报错了，但是还可以连接到Zookeeper的服务