我在Hadoop2.6.0中编写自己的Scheduler继承了AbstractYarnScheduler。
我成功编译但是当在hadoop中提交工作时，RM崩溃了。
以下是主节点中的日志
2015-07-19 13:31:59,931 INFO org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl: application_1437327062733_0001 State change from NEW to NEW_SAVING
**2015-07-19 13:31:59,932 FATAL org.apache.hadoop.yarn.event.AsyncDispatcher: Error in dispatcher thread**
java.lang.NoClassDefFoundError: org/apache/hadoop/yarn/proto/YarnServerResourceManagerServiceProtos$ApplicationStateDataProtoOrBuilder
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)
at org.apache.hadoop.conf.Configuration.getClassByNameOrNull(Configuration.java:2013)
at org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:1978)
at org.apache.hadoop.yarn.factories.impl.pb.RecordFactoryPBImpl.newRecordInstance(RecordFactoryPBImpl.java:56)
at org.apache.hadoop.yarn.util.Records.newRecord(Records.java:36)
at org.apache.hadoop.yarn.server.resourcemanager.recovery.records.ApplicationStateData.newInstance(ApplicationStateData.java:43)
at org.apache.hadoop.yarn.server.resourcemanager.recovery.records.ApplicationStateData.newInstance(ApplicationStateData.java:56)
at org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore$StoreAppTransition.transition(RMStateStore.java:131)
at org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore$StoreAppTransition.transition(RMStateStore.java:1)
at org.apache.hadoop.yarn.state.StateMachineFactory$SingleInternalArc.doTransition(StateMachineFactory.java:362)
at org.apache.hadoop.yarn.state.StateMachineFactory.doTransition(StateMachineFactory.java:302)
at org.apache.hadoop.yarn.state.StateMachineFactory.access$300(StateMachineFactory.java:46)
at org.apache.hadoop.yarn.state.StateMachineFactory$InternalStateMachine.doTransition(StateMachineFactory.java:448)
at org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore.handleStoreEvent(RMStateStore.java:787)
at org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore$ForwardingEventHandler.handle(RMStateStore.java:839)
at org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore$ForwardingEventHandler.handle(RMStateStore.java:1)
at org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:173)
at org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:106)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos$ApplicationStateDataProtoOrBuilder
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 20 more
2015-07-19 13:31:59,934 INFO org.apache.hadoop.yarn.event.AsyncDispatcher: Exiting, bbye..
2015-07-19 13:31:59,937 ERROR org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager: ExpiredTokenRemover received java.lang.InterruptedException: sleep interrupted
2015-07-19 13:31:59,938 INFO org.mortbay.log: Stopped HttpServer2$SelectChannelConnectorWithSafeStartup@0.0.0.0:8088
2015-07-19 13:31:59,938 ERROR org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager: ExpiredTokenRemover received java.lang.InterruptedException: sleep interrupted
2015-07-19 13:31:59,938 ERROR org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager: ExpiredTokenRemover received java.lang.InterruptedException: sleep interrupted
2015-07-19 13:31:59,944 WARN org.apache.hadoop.ipc.Server: IPC Server handler 2 on 8032, call org.apache.hadoop.yarn.api.ApplicationClientProtocolPB.getApplicationReport from 129.10.58.155:50992 Call#42 Retry#0
java.lang.NoSuchMethodError: org.apache.hadoop.yarn.server.utils.BuilderUtils.newApplicationResourceUsageReport(IILorg/apache/hadoop/yarn/api/records/Resource;Lorg/apache/hadoop/yarn/api/records/Resource;Lorg/apache/hadoop/yarn/api/records/Resource;)Lorg/apache/hadoop/yarn/api/records/ApplicationResourceUsageReport;
at org.apache.hadoop.yarn.server.resourcemanager.RMServerUtils.<clinit>(RMServerUtils.java:237)
at org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl.createAndGetApplicationReport(RMAppImpl.java:520)
at org.apache.hadoop.yarn.server.resourcemanager.ClientRMService.getApplicationReport(ClientRMService.java:296)
at org.apache.hadoop.yarn.api.impl.pb.service.ApplicationClientProtocolPBServiceImpl.getApplicationReport(ApplicationClientProtocolPBServiceImpl.java:170)
at org.apache.hadoop.yarn.proto.ApplicationClientProtocol$ApplicationClientProtocolService$2.callBlockingMethod(ApplicationClientProtocol.java:401)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:619)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:962)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2039)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2035)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2033)
2015-07-19 13:32:00,039 INFO org.apache.hadoop.ipc.Server: Stopping server on 8032
2015-07-19 13:32:00,040 INFO org.apache.hadoop.ipc.Server: Stopping IPC Server listener on 8032
2015-07-19 13:32:00,040 INFO org.apache.hadoop.ipc.Server: Stopping server on 8033
2015-07-19 13:32:00,041 INFO org.apache.hadoop.ipc.Server: Stopping IPC Server listener on 8033
2015-07-19 13:32:00,041 INFO org.apache.hadoop.ipc.Server: Stopping IPC Server Responder
2015-07-19 13:32:00,041 INFO org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Transitioning to standby state
2015-07-19 13:32:00,041 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Stopping ResourceManager metrics system...
2015-07-19 13:32:00,042 INFO org.apache.hadoop.ipc.Server: Stopping IPC Server Responder
2015-07-19 13:32:00,042 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: ResourceManager metrics system stopped.
2015-07-19 13:32:00,042 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: ResourceManager metrics system shutdown complete.
2015-07-19 13:32:00,042 INFO org.apache.hadoop.yarn.event.AsyncDispatcher: AsyncDispatcher is draining to stop, igonring any new events.
2015-07-19 13:32:01,042 INFO org.apache.hadoop.yarn.event.AsyncDispatcher: Waiting for AsyncDispatcher to drain.
2015-07-19 13:32:02,043 INFO org.apache.hadoop.yarn.event.AsyncDispatcher: Waiting for AsyncDispatcher to drain.
2015-07-19 13:32:03,043 INFO org.apache.hadoop.yarn.event.AsyncDispatcher: Waiting for AsyncDispatcher to drain.
2015-07-19 13:32:04,043 INFO org.apache.hadoop.yarn.event.AsyncDispatcher: Waiting for AsyncDispatcher to drain.
2015-07-19 13:32:05,044 INFO org.apache.hadoop.yarn.event.AsyncDispatcher: Waiting for AsyncDispatcher to drain.
2015-07-19 13:32:06,044 INFO org.apache.hadoop.yarn.event.AsyncDispatcher: Waiting for AsyncDispatcher to drain.
2015-07-19 13:32:07,044 INFO org.apache.hadoop.yarn.event.AsyncDispatcher: Waiting for AsyncDispatcher to drain.
2015-07-19 13:32:08,044 INFO org.apache.hadoop.yarn.event.AsyncDispatcher: Waiting for AsyncDispatcher to drain.
答案 0 :(得分：0)
根据错误信息，系统无法找到类org.apache.hadoop.yarn.proto.YarnServerResourceManagerServiceProtos$ApplicationStateDataProtoOrBuilder，您是否将类添加到类路径？
答案 1 :(得分：0)
我认为这可能是一些用户会话/权限问题，我的独立实例（Ubuntu Desktop 16 LTE，jdk1.8.92＆amp; Hadoop 2.7.2）中出现了同样的错误。如果我重新启动机器，它会再次正常工作。重新开始。如果我只是重新登录，重启守护进程，在同一个终端会话上重新提交作业，它会不断弹出相同的错误。
你能解决这个问题吗？
在我的机器上重现的步骤是：
（1）使用命令启动终端，登录（在终端上）到hadoop专用用户hduser（sudo用户）：su hduser
（2）使用命令启动hadoop守护进程：start-dfs.sh＆amp; start-yarn.sh
（3）我可以使用jps命令查看所有进程。
（4）很少有MR工作成功完成。我在约10-15分钟后提交相同的工作。
（5）hduser用户会话被抛出＆amp;登陆常规桌面用户会话。