Details
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Bug
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Status: Resolved
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Blocker
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Resolution: Fixed
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None
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None
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Reviewed
Description
We submited a distributed shell application after RM failover and back to active, then got NPE error in RM log:
java.lang.NullPointerException at org.apache.hadoop.yarn.server.resourcemanager.ClientRMService.getResourceProfiles(ClientRMService.java:1814) at org.apache.hadoop.yarn.api.impl.pb.service.ApplicationClientProtocolPBServiceImpl.getResourceProfiles(ApplicationClientProtocolPBServiceImpl.java:657) at org.apache.hadoop.yarn.proto.ApplicationClientProtocol$ApplicationClientProtocolService$2.callBlockingMethod(ApplicationClientProtocol.java:617) at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:523) at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:991) at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:869) at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:815) 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:1682) at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2675)
The cause is that currently resourceProfilesManager is not transferred to new RMContext instance in RMContext#resetRMContext. We should do this transfer to fix this error.
@@ -1488,6 +1488,10 @@ private void resetRMContext() { // transfer service context to new RM service Context rmContextImpl.setServiceContext(rmContext.getServiceContext()); + // transfer resource profiles manager + rmContextImpl + .setResourceProfilesManager(rmContext.getResourceProfilesManager()); + // reset dispatcher Dispatcher dispatcher = setupDispatcher(); ((Service) dispatcher).init(this.conf);