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https://issues.apache.org/jira/browse/YARN-8897?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Bilwa S T updated YARN-8897:
----------------------------
Attachment: YARN-8897-003.patch
> LoadBasedRouterPolicy throws "NPE" in case of sub cluster unavailability
> -------------------------------------------------------------------------
>
> Key: YARN-8897
> URL: https://issues.apache.org/jira/browse/YARN-8897
> Project: Hadoop YARN
> Issue Type: Bug
> Components: federation, router
> Reporter: Akshay Agarwal
> Assignee: Bilwa S T
> Priority: Minor
> Attachments: YARN-8897-001.patch, YARN-8897-002.patch,
> YARN-8897-003.patch
>
>
> If no sub clusters are available for "*Load Based Router Policy*" with
> *cluster weight* as *1* in Router Based Federation Setup , throwing
> "*NullPointerException*".
>
> *Exception Details:*
> {code:java}
> java.lang.NullPointerException: java.lang.NullPointerException
> at
> org.apache.hadoop.yarn.server.federation.policies.router.LoadBasedRouterPolicy.getHomeSubcluster(LoadBasedRouterPolicy.java:99)
> at
> org.apache.hadoop.yarn.server.federation.policies.RouterPolicyFacade.getHomeSubcluster(RouterPolicyFacade.java:204)
> at
> org.apache.hadoop.yarn.server.router.clientrm.FederationClientInterceptor.submitApplication(FederationClientInterceptor.java:362)
> at
> org.apache.hadoop.yarn.server.router.clientrm.RouterClientRMService.submitApplication(RouterClientRMService.java:218)
> at
> org.apache.hadoop.yarn.api.impl.pb.service.ApplicationClientProtocolPBServiceImpl.submitApplication(ApplicationClientProtocolPBServiceImpl.java:282)
> at
> org.apache.hadoop.yarn.proto.ApplicationClientProtocol$ApplicationClientProtocolService$2.callBlockingMethod(ApplicationClientProtocol.java:579)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$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$Handler.run(Server.java:2678)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
> at org.apache.hadoop.yarn.ipc.RPCUtil.instantiateException(RPCUtil.java:53)
> at
> org.apache.hadoop.yarn.ipc.RPCUtil.instantiateRuntimeException(RPCUtil.java:85)
> at
> org.apache.hadoop.yarn.ipc.RPCUtil.unwrapAndThrowException(RPCUtil.java:122)
> at
> org.apache.hadoop.yarn.api.impl.pb.client.ApplicationClientProtocolPBClientImpl.submitApplication(ApplicationClientProtocolPBClientImpl.java:297)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:422)
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeMethod(RetryInvocationHandler.java:165)
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invoke(RetryInvocationHandler.java:157)
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler$Call.invokeOnce(RetryInvocationHandler.java:95)
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:359)
> at com.sun.proxy.$Proxy15.submitApplication(Unknown Source)
> at
> org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.submitApplication(YarnClientImpl.java:288)
> at
> org.apache.hadoop.mapred.ResourceMgrDelegate.submitApplication(ResourceMgrDelegate.java:300)
> at org.apache.hadoop.mapred.YARNRunner.submitJob(YARNRunner.java:331)
> at
> org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:254)
> at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1570)
> at org.apache.hadoop.mapreduce.Job$11.run(Job.java:1567)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1729)
> at org.apache.hadoop.mapreduce.Job.submit(Job.java:1567)
> at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1588)
> at
> org.apache.hadoop.examples.QuasiMonteCarlo.estimatePi(QuasiMonteCarlo.java:307)
> at org.apache.hadoop.examples.QuasiMonteCarlo.run(QuasiMonteCarlo.java:360)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
> at org.apache.hadoop.examples.QuasiMonteCarlo.main(QuasiMonteCarlo.java:368)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at
> org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:71)
> at org.apache.hadoop.util.ProgramDriver.run(ProgramDriver.java:144)
> at org.apache.hadoop.examples.ExampleDriver.main(ExampleDriver.java:74)
> 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.util.RunJar.run(RunJar.java:318)
> at org.apache.hadoop.util.RunJar.main(RunJar.java:232)
> Caused by:
> org.apache.hadoop.ipc.RemoteException(java.lang.NullPointerException):
> java.lang.NullPointerException
> at
> org.apache.hadoop.yarn.server.federation.policies.router.LoadBasedRouterPolicy.getHomeSubcluster(LoadBasedRouterPolicy.java:99)
> at
> org.apache.hadoop.yarn.server.federation.policies.RouterPolicyFacade.getHomeSubcluster(RouterPolicyFacade.java:204)
> at
> org.apache.hadoop.yarn.server.router.clientrm.FederationClientInterceptor.submitApplication(FederationClientInterceptor.java:362)
> at
> org.apache.hadoop.yarn.server.router.clientrm.RouterClientRMService.submitApplication(RouterClientRMService.java:218)
> at
> org.apache.hadoop.yarn.api.impl.pb.service.ApplicationClientProtocolPBServiceImpl.submitApplication(ApplicationClientProtocolPBServiceImpl.java:282)
> at
> org.apache.hadoop.yarn.proto.ApplicationClientProtocol$ApplicationClientProtocolService$2.callBlockingMethod(ApplicationClientProtocol.java:579)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$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)
> {code}
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