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https://issues.apache.org/jira/browse/YARN-9199?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16741893#comment-16741893
 ] 

Jiandan Yang  commented on YARN-9199:
-------------------------------------

this problem is introduced by YARN-7974, I think RM should check existence of 
method *getTrackingUrl*

> Compatible issue: AM throws NoSuchMethodError when 2.7.2 client submits mr 
> job to 3.1.1 RM
> ------------------------------------------------------------------------------------------
>
>                 Key: YARN-9199
>                 URL: https://issues.apache.org/jira/browse/YARN-9199
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: yarn
>    Affects Versions: 3.1.1
>            Reporter: Jiandan Yang 
>            Assignee: Jiandan Yang 
>            Priority: Major
>
> AM throws NoSuchMethodError when 2.7.2 client submits mr job to 3.1.1 RM
> {code:java}
> 2019-01-14 17:20:36,131 ERROR [RMCommunicator Allocator] 
> org.apache.hadoop.mapreduce.v2.app.rm.RMCommunicator: ERROR IN CONTACTING RM. 
> org.apache.hadoop.ipc.RemoteException(java.lang.NoSuchMethodError): 
> org.apache.hadoop.yarn.api.protocolrecords.AllocateRequest.getTrackingUrl()Ljava/lang/String;
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.DefaultAMSProcessor.handleProgress(DefaultAMSProcessor.java:386)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.DefaultAMSProcessor.allocate(DefaultAMSProcessor.java:201)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.constraint.processor.DisabledPlacementProcessor.allocate(DisabledPlacementProcessor.java:75)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.AMSProcessingChain.allocate(AMSProcessingChain.java:92)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.ApplicationMasterService.allocate(ApplicationMasterService.java:433)
>       at 
> org.apache.hadoop.yarn.api.impl.pb.service.ApplicationMasterProtocolPBServiceImpl.allocate(ApplicationMasterProtocolPBServiceImpl.java:60)
>       at 
> org.apache.hadoop.yarn.proto.ApplicationMasterProtocol$ApplicationMasterProtocolService$2.callBlockingMethod(ApplicationMasterProtocol.java:99)
>       at 
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:523)
>       at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:991)
>       at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:872)
>       at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:818)
>       at java.security.AccessController.doPrivileged(Native Method)
>       at javax.security.auth.Subject.doAs(Subject.java:422)
>       at 
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1729)
>       at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2678)
>       at org.apache.hadoop.ipc.Client.call(Client.java:1503)
>       at org.apache.hadoop.ipc.Client.call(Client.java:1441)
>       at 
> org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:229)
>       at com.sun.proxy.$Proxy80.allocate(Unknown Source)
>       at 
> org.apache.hadoop.yarn.api.impl.pb.client.ApplicationMasterProtocolPBClientImpl.allocate(ApplicationMasterProtocolPBClientImpl.java:77)
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>       at java.lang.reflect.Method.invoke(Method.java:498)
>       at 
> org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:253)
>       at 
> org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:101)
>       at com.sun.proxy.$Proxy81.allocate(Unknown Source)
>       at 
> org.apache.hadoop.mapreduce.v2.app.rm.RMContainerRequestor.makeRemoteRequest(RMContainerRequestor.java:204)
>       at 
> org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator.getResources(RMContainerAllocator.java:684)
>       at 
> org.apache.hadoop.mapreduce.v2.app.rm.RMContainerAllocator.heartbeat(RMContainerAllocator.java:257)
>       at 
> org.apache.hadoop.mapreduce.v2.app.rm.RMCommunicator$AllocatorRunnable.run(RMCommunicator.java:281)
>       at java.lang.Thread.run(Thread.java:745)
> {code}



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