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Posted to commits@servicecomb.apache.org by GitBox <gi...@apache.org> on 2020/07/14 05:48:11 UTC

[GitHub] [servicecomb-pack] 515445681 opened a new issue #671: 接收端抛出Failed to get reconnected sender, all alpha server is down.异常

515445681 opened a new issue #671:
URL: https://github.com/apache/servicecomb-pack/issues/671


   项目通过SpringCloud的Feign进行调用，A项目调用B项目,在B项目中的Controller中可以拿到X-Pack-Global-Transaction-Id。
   
   但是B中的Controller调用service方法时，抛出异常。
   
   header如下：
   
   ```
   X-Pack-Local-Transaction-Id:bb67b63a-a75f-4f7e-925c-4097c96173ba
   Accept:*/*
   Connection:Keep-Alive
   User-Agent:Apache-HttpClient/4.5.8 (Java/1.8.0_171)
   X-Forwarded-For:192.168.72.128
   X-Pack-Global-Transaction-Id:bb67b63a-a75f-4f7e-925c-4097c96173ba
   
   ```
   
   B项目service代码如下：
   
   ```
       @Compensable(compensationMethod = "cancel")
       public List selectAllArea(String id) {
           return list;
       }
   
       public void cancel(String id){
           System.out.println(111);
       }
   ```
   
   异常如下：
   
   ```
   org.apache.servicecomb.pack.omega.transaction.OmegaException: Failed to get reconnected sender, all alpha server is down.
   	at org.apache.servicecomb.pack.omega.connector.grpc.core.GrpcOnErrorHandler$GrpcRetryContext$1.get(GrpcOnErrorHandler.java:73)
   	at org.apache.servicecomb.pack.omega.connector.grpc.core.GrpcOnErrorHandler$GrpcRetryContext$1.get(GrpcOnErrorHandler.java:67)
   	at org.apache.servicecomb.pack.omega.connector.grpc.core.FastestSender.pick(FastestSender.java:39)
   	at org.apache.servicecomb.pack.omega.connector.grpc.core.LoadBalanceSenderAdapter.pickMessageSender(LoadBalanceSenderAdapter.java:46)
   	at org.apache.servicecomb.pack.omega.connector.grpc.saga.SagaLoadBalanceSender.send(SagaLoadBalanceSender.java:41)
   	at org.apache.servicecomb.pack.omega.transaction.CompensableInterceptor.preIntercept(CompensableInterceptor.java:34)
   	at org.apache.servicecomb.pack.omega.transaction.DefaultRecovery.applyTo(DefaultRecovery.java:59)
   	at org.apache.servicecomb.pack.omega.transaction.AbstractRecoveryPolicy.apply(AbstractRecoveryPolicy.java:40)
   	at org.apache.servicecomb.pack.omega.transaction.TransactionAspect.advise(TransactionAspect.java:66)
   	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   	at java.lang.reflect.Method.invoke(Method.java:498)
   	at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:644)
   	at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:633)
   	at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70)
   	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:175)
   	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:93)
   	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
   	at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688)
   ```
   


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[GitHub] [servicecomb-pack] coolbeevip commented on issue #671: 接收端抛出Failed to get reconnected sender, all alpha server is down.或 空指针 异常

Posted by GitBox <gi...@apache.org>.
coolbeevip commented on issue #671:
URL: https://github.com/apache/servicecomb-pack/issues/671#issuecomment-657991000


   > @coolbeevip 我改成apache http client了。是不是跟这个有关系。但是我B端的header里有事务id
   
   有关，你需要在 B 服务收到请求后在保存事务ID，然后在 http client 再调用的时候设置到 header里


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[GitHub] [servicecomb-pack] 515445681 commented on issue #671: 接收端抛出Failed to get reconnected sender, all alpha server is down.或 空指针 异常

Posted by GitBox <gi...@apache.org>.
515445681 commented on issue #671:
URL: https://github.com/apache/servicecomb-pack/issues/671#issuecomment-657992562


   @coolbeevip 0.5.0版本没有hystrix的包


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[GitHub] [servicecomb-pack] 515445681 commented on issue #671: 接收端抛出Failed to get reconnected sender, all alpha server is down.或 空指针 异常

Posted by GitBox <gi...@apache.org>.
515445681 commented on issue #671:
URL: https://github.com/apache/servicecomb-pack/issues/671#issuecomment-657983141


   > 用的什么版本？服务A，B完整的启动参数是什么？
   
   回复好快~
   
   0.5.0版本。
   
   启动只用了starter和feign的传输包
   
   ```
           <dependency>
               <groupId>org.apache.servicecomb.pack</groupId>
               <artifactId>omega-spring-starter</artifactId>
           </dependency>
           <dependency>
               <groupId>org.apache.servicecomb.pack</groupId>
               <artifactId>omega-transport-feign</artifactId>
           </dependency>
   ```
   
   参数只配了
   
   ```
   alpha:
     cluster:
       address: 127.0.0.1:8080
   ```


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[GitHub] [servicecomb-pack] 515445681 removed a comment on issue #671: 接收端抛出Failed to get reconnected sender, all alpha server is down.或 空指针 异常

Posted by GitBox <gi...@apache.org>.
515445681 removed a comment on issue #671:
URL: https://github.com/apache/servicecomb-pack/issues/671#issuecomment-657991956


   @coolbeevip 
   现在只有A和B两个项目,A调用B的时候已经在header里存在事务id了。
   B项目接到请求也可以打印出来A项目传递过来的id。
   您说的接到请求保存事务id，是保存到哪里。
   
   


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[GitHub] [servicecomb-pack] 515445681 commented on issue #671: 接收端抛出Failed to get reconnected sender, all alpha server is down.或 空指针 异常

Posted by GitBox <gi...@apache.org>.
515445681 commented on issue #671:
URL: https://github.com/apache/servicecomb-pack/issues/671#issuecomment-657991934






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[GitHub] [servicecomb-pack] coolbeevip commented on issue #671: 接收端抛出Failed to get reconnected sender, all alpha server is down.或 空指针 异常

Posted by GitBox <gi...@apache.org>.
coolbeevip commented on issue #671:
URL: https://github.com/apache/servicecomb-pack/issues/671#issuecomment-657989561


   > @coolbeevip A程序使用的@FeignClient(value = "")调用的B，没有用到resttemplate，hystrix用到了，我加一下看看
   
   FeignClient 内部使用的也是 resttemplate


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[GitHub] [servicecomb-pack] coolbeevip commented on issue #671: 接收端抛出Failed to get reconnected sender, all alpha server is down.异常

Posted by GitBox <gi...@apache.org>.
coolbeevip commented on issue #671:
URL: https://github.com/apache/servicecomb-pack/issues/671#issuecomment-657982309


   用的什么版本？服务A，B完整的启动参数是什么？


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[GitHub] [servicecomb-pack] coolbeevip commented on issue #671: 接收端抛出Failed to get reconnected sender, all alpha server is down.或 空指针 异常

Posted by GitBox <gi...@apache.org>.
coolbeevip commented on issue #671:
URL: https://github.com/apache/servicecomb-pack/issues/671#issuecomment-657994126


   B服务在调用自己的service的时候会从上下文对象 OmegaContext 中获取事务IP，然后调用 alpha，从你的日志中看应该是header中的事务ID没有保存到上下文对象 OmegaContext 中，这部分您可以参考 RestTemplate的实现
   
   src/main/java/org/apache/servicecomb/pack/omega/transport/resttemplate


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[GitHub] [servicecomb-pack] coolbeevip commented on issue #671: 接收端抛出Failed to get reconnected sender, all alpha server is down.或 空指针 异常

Posted by GitBox <gi...@apache.org>.
coolbeevip commented on issue #671:
URL: https://github.com/apache/servicecomb-pack/issues/671#issuecomment-657989906


   你可以看一下项目自带的 demo 
   demo/saga-spring-demo


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[GitHub] [servicecomb-pack] 515445681 commented on issue #671: 接收端抛出Failed to get reconnected sender, all alpha server is down.或 空指针 异常

Posted by GitBox <gi...@apache.org>.
515445681 commented on issue #671:
URL: https://github.com/apache/servicecomb-pack/issues/671#issuecomment-657986876


   @coolbeevip A程序使用的@FeignClient(value = "")调用的B，没有用到resttemplate，hystrix用到了，我加一下看看


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[GitHub] [servicecomb-pack] 515445681 closed issue #671: 接收端抛出Failed to get reconnected sender, all alpha server is down.或 空指针 异常

Posted by GitBox <gi...@apache.org>.
515445681 closed issue #671:
URL: https://github.com/apache/servicecomb-pack/issues/671


   


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[GitHub] [servicecomb-pack] 515445681 commented on issue #671: 接收端抛出Failed to get reconnected sender, all alpha server is down.或 空指针 异常

Posted by GitBox <gi...@apache.org>.
515445681 commented on issue #671:
URL: https://github.com/apache/servicecomb-pack/issues/671#issuecomment-657994985


   @coolbeevip 
   ok，看到这块代码了，缺个拦截器，感谢


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[GitHub] [servicecomb-pack] 515445681 commented on issue #671: 接收端抛出Failed to get reconnected sender, all alpha server is down.或 空指针 异常

Posted by GitBox <gi...@apache.org>.
515445681 commented on issue #671:
URL: https://github.com/apache/servicecomb-pack/issues/671#issuecomment-657989950


   @coolbeevip 我改成apache http client了。是不是跟这个有关系。但是我B端的header里有事务id


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[GitHub] [servicecomb-pack] coolbeevip commented on issue #671: 接收端抛出Failed to get reconnected sender, all alpha server is down.或 空指针 异常

Posted by GitBox <gi...@apache.org>.
coolbeevip commented on issue #671:
URL: https://github.com/apache/servicecomb-pack/issues/671#issuecomment-657993127


   > @coolbeevip 0.5.0版本没有hystrix的包
   
   如果你用 http client 代替了 resttemplate 那么就和 hystrix 无关了


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[GitHub] [servicecomb-pack] 515445681 commented on issue #671: 接收端抛出Failed to get reconnected sender, all alpha server is down.或 空指针 异常

Posted by GitBox <gi...@apache.org>.
515445681 commented on issue #671:
URL: https://github.com/apache/servicecomb-pack/issues/671#issuecomment-657993720


   嗯嗯，那我现在httpclient的应该怎么搞，需要额外做处理吗，我这边数据库里也有日志进去。
   
   ![image](https://user-images.githubusercontent.com/11323678/87391554-88b18100-c5dd-11ea-82da-cc0cab86c244.png)
   


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[GitHub] [servicecomb-pack] coolbeevip commented on issue #671: 接收端抛出Failed to get reconnected sender, all alpha server is down.或 空指针 异常

Posted by GitBox <gi...@apache.org>.
coolbeevip commented on issue #671:
URL: https://github.com/apache/servicecomb-pack/issues/671#issuecomment-657985439


   我不确定你的A，B程序是否使用了以下技术，不过您可以增加以下依赖试试
   
   ```xml
       <dependency>
         <groupId>org.apache.servicecomb.pack</groupId>
         <artifactId>omega-transport-resttemplate</artifactId>
       </dependency>
       <dependency>
         <groupId>org.apache.servicecomb.pack</groupId>
         <artifactId>omega-transport-hystrix</artifactId>
       </dependency>


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[GitHub] [servicecomb-pack] 515445681 commented on issue #671: 接收端抛出Failed to get reconnected sender, all alpha server is down.或 空指针 异常

Posted by GitBox <gi...@apache.org>.
515445681 commented on issue #671:
URL: https://github.com/apache/servicecomb-pack/issues/671#issuecomment-657993868


   但是感觉B项目一种情况是连不上,一种是无法设置全局事务id


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