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Posted to notifications@dubbo.apache.org by GitBox <gi...@apache.org> on 2021/09/20 07:01:32 UTC
[GitHub] [dubbo] MrLiuFang opened a new issue #8859: dubbo3 会出现端口被占用情况--反复确认 20880 端口没有被使用
MrLiuFang opened a new issue #8859:
URL: https://github.com/apache/dubbo/issues/8859
- [ ] I have searched the [issues](https://github.com/apache/dubbo/issues) of this repository and believe that this is not a duplicate.
- [ ] I have checked the [FAQ](https://github.com/apache/dubbo/blob/master/FAQ.md) of this repository and believe that this is not a duplicate.
### Environment
* Dubbo version: 3.0.2.1
* Operating System version: centos8
* Java version: 1.8
pom.xml
```
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<groupId>com.lion</groupId>
<modelVersion>4.0.0</modelVersion>
<artifactId>test</artifactId>
<packaging>jar</packaging>
<version>1.0.0</version>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>2.5.4</version>
<type>pom</type>
<scope>import</scope>
</dependency>
<!-- <dependency>-->
<!-- <groupId>org.springframework.cloud</groupId>-->
<!-- <artifactId>spring-cloud-dependencies</artifactId>-->
<!-- <version>2020.0.3</version>-->
<!-- <type>pom</type>-->
<!-- <scope>import</scope>-->
<!-- </dependency>-->
<!-- <dependency>-->
<!-- <groupId>com.alibaba.cloud</groupId>-->
<!-- <artifactId>spring-cloud-alibaba-dependencies</artifactId>-->
<!-- <version>2021.1</version>-->
<!-- <type>pom</type>-->
<!-- <scope>import</scope>-->
<!-- </dependency>-->
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-registry-nacos</artifactId>
<version>3.0.2.1</version>
</dependency>
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-spring-boot-starter</artifactId>
<version>3.0.2.1</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.alibaba.nacos</groupId>
<artifactId>nacos-client</artifactId>
<version>2.0.3</version>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.12.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>com.mysema.maven</groupId>
<artifactId>apt-maven-plugin</artifactId>
<version>1.1.3</version>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>8</source>
<target>8</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
```
application.yml
```
spring:
application:
name: test
server:
port: 0
dubbo:
application:
name: test
id: test
protocol:
name: dubbo
port: -1
registry:
address: nacos://172.16.30.130:8848
consumer:
check: false
```
```
org.apache.dubbo.rpc.RpcException: Fail to start server(url: dubbo://192.168.1.102:20880/org.apache.dubbo.metadata.MetadataService?anyhost=true&application=test&bind.ip=192.168.1.102&bind.port=20880&channel.readonly.sent=true&codec=dubbo&delay=0&deprecated=false&dubbo=2.0.2&dynamic=true&generic=false&getAndListenInstanceMetadata.1.callback=true&getAndListenInstanceMetadata.return=true&getAndListenInstanceMetadata.sent=true&group=test&heartbeat=60000&interface=org.apache.dubbo.metadata.MetadataService&metadata-type=remote&methods=getExportedURLs,getAndListenInstanceMetadata,toURLs,serviceName,isMetadataServiceURL,getSubscribedURLs,version,getExportedServiceURLs,exportInstanceMetadata,getMetadataInfo,toSortedStrings,getMetadataInfos,getServiceDefinition,getInstanceMetadataChangedListenerMap&pid=24260&qos.enable=false&release=3.0.2.1&revision=3.0.2.1&side=provider×tamp=1632120798177&version=1.0.0) Failed to bind NettyServer on /192.168.1.102:20880, cause: 地址已在使用
at org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol.createServer(DubboProtocol.java:351) ~[dubbo-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol.openServer(DubboProtocol.java:321) ~[dubbo-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol.export(DubboProtocol.java:304) ~[dubbo-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.rpc.protocol.ProtocolListenerWrapper.export(ProtocolListenerWrapper.java:66) ~[dubbo-rpc-api-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.rpc.cluster.filter.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:62) ~[dubbo-cluster-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.qos.protocol.QosProtocolWrapper.export(QosProtocolWrapper.java:66) ~[dubbo-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.rpc.protocol.ProtocolSerializationWrapper.export(ProtocolSerializationWrapper.java:46) ~[dubbo-rpc-api-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.rpc.Protocol$Adaptive.export(Protocol$Adaptive.java) ~[dubbo-common-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.config.ServiceConfig.doExportUrl(ServiceConfig.java:612) ~[dubbo-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.config.ServiceConfig.exportRemote(ServiceConfig.java:599) ~[dubbo-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.config.ServiceConfig.exportUrl(ServiceConfig.java:546) ~[dubbo-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.config.ServiceConfig.doExportUrlsFor1Protocol(ServiceConfig.java:379) ~[dubbo-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.config.ServiceConfig.doExportUrls(ServiceConfig.java:366) ~[dubbo-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.config.ServiceConfig.doExport(ServiceConfig.java:342) ~[dubbo-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.config.ServiceConfig.export(ServiceConfig.java:233) ~[dubbo-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter.export(ConfigurableMetadataServiceExporter.java:84) ~[dubbo-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter.export(ConfigurableMetadataServiceExporter.java:55) ~[dubbo-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.config.bootstrap.DubboBootstrap.exportMetadataService(DubboBootstrap.java:1375) ~[dubbo-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.config.bootstrap.DubboBootstrap.doStart(DubboBootstrap.java:1148) ~[dubbo-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.config.bootstrap.DubboBootstrap.start(DubboBootstrap.java:1119) ~[dubbo-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.config.spring.context.DubboBootstrapApplicationListener.onContextRefreshedEvent(DubboBootstrapApplicationListener.java:109) ~[dubbo-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.config.spring.context.DubboBootstrapApplicationListener.onApplicationContextEvent(DubboBootstrapApplicationListener.java:101) ~[dubbo-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.config.spring.context.DubboBootstrapApplicationListener.onApplicationEvent(DubboBootstrapApplicationListener.java:78) ~[dubbo-3.0.2.1.jar:3.0.2.1]
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:176) ~[spring-context-5.3.9.jar:5.3.9]
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:169) ~[spring-context-5.3.9.jar:5.3.9]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143) ~[spring-context-5.3.9.jar:5.3.9]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:421) ~[spring-context-5.3.9.jar:5.3.9]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:378) ~[spring-context-5.3.9.jar:5.3.9]
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:938) ~[spring-context-5.3.9.jar:5.3.9]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:586) ~[spring-context-5.3.9.jar:5.3.9]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145) ~[spring-boot-2.5.4.jar:2.5.4]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754) [spring-boot-2.5.4.jar:2.5.4]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:434) [spring-boot-2.5.4.jar:2.5.4]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:338) [spring-boot-2.5.4.jar:2.5.4]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1343) [spring-boot-2.5.4.jar:2.5.4]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1332) [spring-boot-2.5.4.jar:2.5.4]
at com.Application.main(Application.java:22) [classes/:na]
Caused by: org.apache.dubbo.remoting.RemotingException: Failed to bind NettyServer on /192.168.1.102:20880, cause: 地址已在使用
at org.apache.dubbo.remoting.transport.AbstractServer.<init>(AbstractServer.java:73) ~[dubbo-remoting-api-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.remoting.transport.netty4.NettyServer.<init>(NettyServer.java:80) ~[dubbo-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.remoting.transport.netty4.NettyTransporter.bind(NettyTransporter.java:35) ~[dubbo-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.remoting.Transporter$Adaptive.bind(Transporter$Adaptive.java) ~[dubbo-common-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.remoting.Transporters.bind(Transporters.java:56) ~[dubbo-remoting-api-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.remoting.exchange.support.header.HeaderExchanger.bind(HeaderExchanger.java:44) ~[dubbo-remoting-api-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.remoting.exchange.Exchangers.bind(Exchangers.java:70) ~[dubbo-remoting-api-3.0.2.1.jar:3.0.2.1]
at org.apache.dubbo.rpc.protocol.dubbo.DubboProtocol.createServer(DubboProtocol.java:349) ~[dubbo-3.0.2.1.jar:3.0.2.1]
... 36 common frames omitted
Caused by: java.net.BindException: 地址已在使用
at sun.nio.ch.Net.bind0(Native Method) ~[na:1.8.0_231]
at sun.nio.ch.Net.bind(Net.java:433) ~[na:1.8.0_231]
at sun.nio.ch.Net.bind(Net.java:425) ~[na:1.8.0_231]
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223) ~[na:1.8.0_231]
at io.netty.channel.socket.nio.NioServerSocketChannel.doBind(NioServerSocketChannel.java:134) ~[netty-all-4.1.67.Final.jar:4.1.67.Final]
at io.netty.channel.AbstractChannel$AbstractUnsafe.bind(AbstractChannel.java:562) ~[netty-all-4.1.67.Final.jar:4.1.67.Final]
at io.netty.channel.DefaultChannelPipeline$HeadContext.bind(DefaultChannelPipeline.java:1334) ~[netty-all-4.1.67.Final.jar:4.1.67.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeBind(AbstractChannelHandlerContext.java:506) ~[netty-all-4.1.67.Final.jar:4.1.67.Final]
at io.netty.channel.AbstractChannelHandlerContext.bind(AbstractChannelHandlerContext.java:491) ~[netty-all-4.1.67.Final.jar:4.1.67.Final]
at io.netty.channel.DefaultChannelPipeline.bind(DefaultChannelPipeline.java:973) ~[netty-all-4.1.67.Final.jar:4.1.67.Final]
at io.netty.channel.AbstractChannel.bind(AbstractChannel.java:260) ~[netty-all-4.1.67.Final.jar:4.1.67.Final]
at io.netty.bootstrap.AbstractBootstrap$2.run(AbstractBootstrap.java:356) ~[netty-all-4.1.67.Final.jar:4.1.67.Final]
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute$$$capture(AbstractEventExecutor.java:164) ~[netty-all-4.1.67.Final.jar:4.1.67.Final]
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java) ~[netty-all-4.1.67.Final.jar:4.1.67.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:469) ~[netty-all-4.1.67.Final.jar:4.1.67.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500) ~[netty-all-4.1.67.Final.jar:4.1.67.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986) ~[netty-all-4.1.67.Final.jar:4.1.67.Final]
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-all-4.1.67.Final.jar:4.1.67.Final]
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-all-4.1.67.Final.jar:4.1.67.Final]
at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_231]
2021-09-20 14:53:23.561 WARN 24260 --- [ Thread-10] c.a.nacos.common.notify.NotifyCenter : [NotifyCenter] Start destroying Publisher
2021-09-20 14:53:23.561 WARN 24260 --- [ Thread-7] c.a.n.common.http.HttpClientBeanHolder : [HttpClientBeanHolder] Start destroying common HttpClient
2021-09-20 14:53:23.562 WARN 24260 --- [ Thread-10] c.a.nacos.common.notify.NotifyCenter : [NotifyCenter] Destruction of the end
2021-09-20 14:53:23.562 WARN 24260 --- [ Thread-7] c.a.n.common.http.HttpClientBeanHolder : [HttpClientBeanHolder] Destruction of the end
Disconnected from the target VM, address: '127.0.0.1:53711', transport: 'socket'
Process finished with exit code 1
```
已经确认 20880 端口未被使用
```
[mr.liu@localhost ~]$ telnet 127.0.0.1 20880
Trying 127.0.0.1...
telnet: connect to address 127.0.0.1: Connection refused
```
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[GitHub] [dubbo] chenhuaming commented on issue #8859: dubbo3 会出现端口被占用情况--反复确认 20880 端口没有被使用
Posted by GitBox <gi...@apache.org>.
chenhuaming commented on issue #8859:
URL: https://github.com/apache/dubbo/issues/8859#issuecomment-1034046431
> @changfubai @CrazyHZM @yangzan0816 问题已经找到,因为我centos环境物理机装了虚拟机 有多个虚拟网卡.在provider 自己写的服务时候得到的ip是虚拟ip172.16.30.1.进行一次org.apache.dubbo.remoting.transport.netty4.NettyServer.doOpen() 操作 后续provider dubbo官方自带的org.apache.dubbo.metadata.MetadataService 得到的ip是192.168.1.102 又进行一次org.apache.dubbo.remoting.transport.netty4.NettyServer.doOpen() 操作,所以就导致了端口冲突. 需要在配置中指定ip来解决 dubbo.protocol.host=192.168.1.102
>
>   
===============================
首先配置 dubbo.protocol.port=-1
1. 我也遇到了一个差不多相同的问题。
2. 我的情况是我的centos本身是一台虚拟机，然后我在虚拟机里面起了一个docker
不配置host的话是可以注册上去的docker容器的ip地址，这样是调用的时候是不通的。
所以我配置了虚拟机的到dubbo.protocol.host上，这样是启动不成功的。
然后我把docker的host改成了虚拟机的外网域名，这样就会报错，地址被重复占用。
===============================
然后我配置了一个 dubbo.protocol.port=20957
这样可以启动成功，但是MetadataService是发布在20880端口
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[GitHub] [dubbo] yangzan0816 commented on issue #8859: dubbo3 会出现端口被占用情况--反复确认 20880 端口没有被使用
Posted by GitBox <gi...@apache.org>.
yangzan0816 commented on issue #8859:
URL: https://github.com/apache/dubbo/issues/8859#issuecomment-922857556
> @yangzan0816 @changfubai
>
> **代码已上传到github https://github.com/MrLiuFang/test nacos 使用的是2.0.3**
>
> Application.java
>
> ```
> package com;
>
> import org.apache.dubbo.config.annotation.DubboReference;
> import org.apache.dubbo.config.spring.context.annotation.EnableDubbo;
> import org.springframework.boot.SpringApplication;
> import org.springframework.boot.autoconfigure.SpringBootApplication;
>
> /**
> * @description:
> * @author: Mr.Liu
> * @time: 2021/9/20 上午9:49
> */
>
> @SpringBootApplication(scanBasePackages = "com")
> @EnableDubbo(scanBasePackages = "com")
> public class Application {
>
> @DubboReference
> private Test test;
>
> public static void main(String[] args) {
> SpringApplication.run(Application.class, args);
> }
> }
> ```
>
> Test.java
>
> ```
> package com;
>
> /**
> * @description:
> * @author: Mr.Liu
> * @time: 2021/9/20 上午9:44
> */
> public interface Test {
>
> void test();
> }
> ```
>
> TestImpl.java
>
> ```
> package com;
>
> import org.apache.dubbo.config.annotation.DubboService;
> import org.springframework.boot.ApplicationArguments;
> import org.springframework.boot.ApplicationRunner;
>
> /**
> * @description:
> * @author: Mr.Liu
> * @time: 2021/9/20 上午9:44
> */
> @DubboService( )
> public class TestImpl implements Test {
> @Override
> public void test() {
>
> }
>
> }
> ```
>
> **代码已上传到github https://github.com/MrLiuFang/test nacos 使用的是2.0.3**
>
> 实在找不出问题所在 麻烦帮忙瞧瞧！3Q
你要不再检查下打出来的包如何，先清掉idea的ide缓存，clear下重新本地跑下试试？我down下来之后是成功的，未发现端口冲突
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[GitHub] [dubbo] changfubai commented on issue #8859: dubbo3 会出现端口被占用情况--反复确认 20880 端口没有被使用
Posted by GitBox <gi...@apache.org>.
changfubai commented on issue #8859:
URL: https://github.com/apache/dubbo/issues/8859#issuecomment-922700255
没有复现+1
贴一下provider的代码？
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[GitHub] [dubbo] jeftom commented on issue #8859: dubbo3 会出现端口被占用情况--反复确认 20880 端口没有被使用
Posted by GitBox <gi...@apache.org>.
jeftom commented on issue #8859:
URL: https://github.com/apache/dubbo/issues/8859#issuecomment-957933471
谢谢，我也是遇到了同样的问题。
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[GitHub] [dubbo] yangzan0816 commented on issue #8859: dubbo3 会出现端口被占用情况--反复确认 20880 端口没有被使用
Posted by GitBox <gi...@apache.org>.
yangzan0816 commented on issue #8859:
URL: https://github.com/apache/dubbo/issues/8859#issuecomment-922695499
> @yangzan0816 是的，无论换什么端口都会出现端口被使用
本地也一样会冲突吗，是不是你做了什么操作，一次启动了两个相同的实例导致的呢，因为我用相同的配置在本地跑时没有出现你的那种情况的
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[GitHub] [dubbo] jeftom commented on issue #8859: dubbo3 会出现端口被占用情况--反复确认 20880 端口没有被使用
Posted by GitBox <gi...@apache.org>.
jeftom commented on issue #8859:
URL: https://github.com/apache/dubbo/issues/8859#issuecomment-957933471
谢谢，我也是遇到了同样的问题。
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[GitHub] [dubbo] yangzan0816 commented on issue #8859: dubbo3 会出现端口被占用情况--反复确认 20880 端口没有被使用
Posted by GitBox <gi...@apache.org>.
yangzan0816 commented on issue #8859:
URL: https://github.com/apache/dubbo/issues/8859#issuecomment-922681705
请问如果切换了dubbo的默认端口号是否还会有相同的情况发生呢？
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[GitHub] [dubbo] MrLiuFang commented on issue #8859: dubbo3 会出现端口被占用情况--反复确认 20880 端口没有被使用
Posted by GitBox <gi...@apache.org>.
MrLiuFang commented on issue #8859:
URL: https://github.com/apache/dubbo/issues/8859#issuecomment-922991312
@yangzan0816 @changfubai
我录制了一个一两分钟的视频 分别是在centos8 和 windwos 下的运行情况.希望对于这个诡异的问题有所帮助
[http://47.113.202.95/1.webm](http://47.113.202.95/1.webm)
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[GitHub] [dubbo] MrLiuFang commented on issue #8859: dubbo3 会出现端口被占用情况--反复确认 20880 端口没有被使用
Posted by GitBox <gi...@apache.org>.
MrLiuFang commented on issue #8859:
URL: https://github.com/apache/dubbo/issues/8859#issuecomment-922682829
@yangzan0816 是的，无论换什么端口都会出现端口被使用
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[GitHub] [dubbo] MrLiuFang commented on issue #8859: dubbo3 会出现端口被占用情况--反复确认 20880 端口没有被使用
Posted by GitBox <gi...@apache.org>.
MrLiuFang commented on issue #8859:
URL: https://github.com/apache/dubbo/issues/8859#issuecomment-925452262
@changfubai @CrazyHZM @yangzan0816
问题已经找到,因为我centos环境物理机装了虚拟机 有多个虚拟网卡.在provider 自己写的服务时候得到的ip是虚拟ip172.16.30.1.进行一次org.apache.dubbo.remoting.transport.netty4.NettyServer.doOpen() 操作
后续provider dubbo官方自带的org.apache.dubbo.metadata.MetadataService 得到的ip是192.168.1.102 又进行一次org.apache.dubbo.remoting.transport.netty4.NettyServer.doOpen() 操作,所以就导致了端口冲突.
需要在配置中指定ip来解决 dubbo.protocol.host=192.168.1.102
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[GitHub] [dubbo] MrLiuFang closed issue #8859: dubbo3 会出现端口被占用情况--反复确认 20880 端口没有被使用
Posted by GitBox <gi...@apache.org>.
MrLiuFang closed issue #8859:
URL: https://github.com/apache/dubbo/issues/8859
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[GitHub] [dubbo] MrLiuFang commented on issue #8859: dubbo3 会出现端口被占用情况--反复确认 20880 端口没有被使用
Posted by GitBox <gi...@apache.org>.
MrLiuFang commented on issue #8859:
URL: https://github.com/apache/dubbo/issues/8859#issuecomment-922805168
@yangzan0816 @changfubai
**代码已上传到github [https://github.com/MrLiuFang/test](https://github.com/MrLiuFang/test)
nacos 使用的是2.0.3**
Application.java
```
package com;
import org.apache.dubbo.config.annotation.DubboReference;
import org.apache.dubbo.config.spring.context.annotation.EnableDubbo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
/**
* @description:
* @author: Mr.Liu
* @time: 2021/9/20 上午9:49
*/
@SpringBootApplication(scanBasePackages = "com")
@EnableDubbo(scanBasePackages = "com")
public class Application {
@DubboReference
private Test test;
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
```
Test.java
```
package com;
/**
* @description:
* @author: Mr.Liu
* @time: 2021/9/20 上午9:44
*/
public interface Test {
void test();
}
```
TestImpl.java
```
package com;
import org.apache.dubbo.config.annotation.DubboService;
import org.springframework.boot.ApplicationArguments;
import org.springframework.boot.ApplicationRunner;
/**
* @description:
* @author: Mr.Liu
* @time: 2021/9/20 上午9:44
*/
@DubboService( )
public class TestImpl implements Test {
@Override
public void test() {
}
}
```
**代码已上传到github [https://github.com/MrLiuFang/test](https://github.com/MrLiuFang/test)
nacos 使用的是2.0.3**
实在找不出问题所在 麻烦帮忙瞧瞧！3Q
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[GitHub] [dubbo] MrLiuFang commented on issue #8859: dubbo3 会出现端口被占用情况--反复确认 20880 端口没有被使用
Posted by GitBox <gi...@apache.org>.
MrLiuFang commented on issue #8859:
URL: https://github.com/apache/dubbo/issues/8859#issuecomment-922962200
@yangzan0816 我的环境是centos8 的物理机.在centos环境下无论是在idea模式下直接运行还是打包成jar包运行, 都会有上述问题.但是将打包好的jar复制到window环境下 通过 java -jar 运行一切正常.多么诡异的灵异事件.蒙蔽了.
如果将dubbo版本换成2.7.8 在centos8环境完全没有问题
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[GitHub] [dubbo] jeftom commented on issue #8859: dubbo3 会出现端口被占用情况--反复确认 20880 端口没有被使用
Posted by GitBox <gi...@apache.org>.
jeftom commented on issue #8859:
URL: https://github.com/apache/dubbo/issues/8859#issuecomment-957933471
谢谢，我也是遇到了同样的问题。
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