2021-11-04 21:27:35,794 INFO org.apache.hadoop.service.AbstractService: Service org.apache.hadoop.mapreduce.v2.hs.HistoryFiln: Couldn't create proxy provider null java.lang.RuntimeException: java.io.IOException: Couldn't create proxy provider null at org.apache.hadoop.fs.FileContext.getFileContext(FileContext.java:469) at org.apache.hadoop.fs.FileContext.getFileContext(FileContext.java:490) at org.apache.hadoop.mapreduce.v2.jobhistory.JobHistoryUtils.getDefaultFileContext(JobHistoryUtils.java:247) at org.apache.hadoop.mapreduce.v2.jobhistory.JobHistoryUtils.ensurePathInDefaultFileSystem(JobHistoryUtils.java:277) at org.apache.hadoop.mapreduce.v2.jobhistory.JobHistoryUtils.getConfiguredHistoryServerDoneDirPrefix(JobHistoryUtils at org.apache.hadoop.mapreduce.v2.hs.HistoryFileManager.tryCreatingHistoryDirs(HistoryFileManager.java:673) at org.apache.hadoop.mapreduce.v2.hs.HistoryFileManager.createHistoryDirs(HistoryFileManager.java:633) at org.apache.hadoop.mapreduce.v2.hs.HistoryFileManager.serviceInit(HistoryFileManager.java:594) at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163) at org.apache.hadoop.mapreduce.v2.hs.JobHistory.serviceInit(JobHistory.java:95) at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163) at org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:107) at org.apache.hadoop.mapreduce.v2.hs.JobHistoryServer.serviceInit(JobHistoryServer.java:154) at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163) at org.apache.hadoop.mapreduce.v2.hs.JobHistoryServer.launchJobHistoryServer(JobHistoryServer.java:229) at org.apache.hadoop.mapreduce.v2.hs.JobHistoryServer.main(JobHistoryServer.java:239) Caused by: java.io.IOException: Couldn't create proxy provider null at org.apache.hadoop.hdfs.NameNodeProxies.createFailoverProxyProvider(NameNodeProxies.java:515) at org.apache.hadoop.hdfs.NameNodeProxies.createProxy(NameNodeProxies.java:170) at org.apache.hadoop.hdfs.DFSClient.错误原因(DFSClient.java:762) at org.apache.hadoop.hdfs.DFSClient. (DFSClient.java:693) at org.apache.hadoop.fs.Hdfs. (Hdfs.java:90) 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.fs.AbstractFileSystem.newInstance(AbstractFileSystem.java:134) at org.apache.hadoop.fs.AbstractFileSystem.createFileSystem(AbstractFileSystem.java:172) at org.apache.hadoop.fs.AbstractFileSystem.get(AbstractFileSystem.java:257) at org.apache.hadoop.fs.FileContext$2.run(FileContext.java:341) at org.apache.hadoop.fs.FileContext$2.run(FileContext.java:338) 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:1920) at org.apache.hadoop.fs.FileContext.getAbstractFileSystem(FileContext.java:338) at org.apache.hadoop.fs.FileContext.getFileContext(FileContext.java:464) ... 15 more Caused by: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.ClassNotFoundException: Class org.apache.hadoop at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2381) at org.apache.hadoop.hdfs.NameNodeProxies.getFailoverProxyProviderClass(NameNodeProxies.java:464) at org.apache.hadoop.hdfs.NameNodeProxies.createFailoverProxyProvider(NameNodeProxies.java:490) ... 33 more Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException: Class org.apache.hadoop.hdfs.server.namenode.ha.Con at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2349) at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2373) ... 35 more Caused by: java.lang.ClassNotFoundException: Class org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProvider not at org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:2255) at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2347) ... 36 more 2021-11-04 21:27:35,796 INFO org.apache.hadoop.service.AbstractService: Service org.apache.hadoop.mapreduce.v2.hs.JobHistoryn't create proxy provider null java.lang.RuntimeException: java.io.IOException: Couldn't create proxy provider null at org.apache.hadoop.fs.FileContext.getFileContext(FileContext.java:469) at org.apache.hadoop.fs.FileContext.getFileContext(FileContext.java:490) at org.apache.hadoop.mapreduce.v2.jobhistory.JobHistoryUtils.getDefaultFileContext(JobHistoryUtils.java:247) at org.apache.hadoop.mapreduce.v2.jobhistory.JobHistoryUtils.ensurePathInDefaultFileSystem(JobHistoryUtils.java:277) at org.apache.hadoop.mapreduce.v2.jobhistory.JobHistoryUtils.getConfiguredHistoryServerDoneDirPrefix(JobHistoryUtils at org.apache.hadoop.mapreduce.v2.hs.HistoryFileManager.tryCreatingHistoryDirs(HistoryFileManager.java:673) at org.apache.hadoop.mapreduce.v2.hs.HistoryFileManager.createHistoryDirs(HistoryFileManager.java:633) at org.apache.hadoop.mapreduce.v2.hs.HistoryFileManager.serviceInit(HistoryFileManager.java:594) at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163) at org.apache.hadoop.mapreduce.v2.hs.JobHistory.serviceInit(JobHistory.java:95) at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163) at org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:107) at org.apache.hadoop.mapreduce.v2.hs.JobHistoryServer.serviceInit(JobHistoryServer.java:154) at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163) at org.apache.hadoop.mapreduce.v2.hs.JobHistoryServer.launchJobHistoryServer(JobHistoryServer.java:229) at org.apache.hadoop.mapreduce.v2.hs.JobHistoryServer.main(JobHistoryServer.java:239) Caused by: java.io.IOException: Couldn't create proxy provider null at org.apache.hadoop.hdfs.NameNodeProxies.createFailoverProxyProvider(NameNodeProxies.java:515) at org.apache.hadoop.hdfs.NameNodeProxies.createProxy(NameNodeProxies.java:170) at org.apache.hadoop.hdfs.DFSClient. (DFSClient.java:762) at org.apache.hadoop.hdfs.DFSClient. (DFSClient.java:693) at org.apache.hadoop.fs.Hdfs. (Hdfs.java:90) 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.fs.AbstractFileSystem.newInstance(AbstractFileSystem.java:134) at org.apache.hadoop.fs.AbstractFileSystem.createFileSystem(AbstractFileSystem.java:172) at org.apache.hadoop.fs.AbstractFileSystem.get(AbstractFileSystem.java:257) at org.apache.hadoop.fs.FileContext$2.run(FileContext.java:341) at org.apache.hadoop.fs.FileContext$2.run(FileContext.java:338) 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:1920) at org.apache.hadoop.fs.FileContext.getAbstractFileSystem(FileContext.java:338) at org.apache.hadoop.fs.FileContext.getFileContext(FileContext.java:464) ... 15 more Caused by: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.ClassNotFoundException: Class org.apache.hadoop at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2381) at org.apache.hadoop.hdfs.NameNodeProxies.getFailoverProxyProviderClass(NameNodeProxies.java:464) at org.apache.hadoop.hdfs.NameNodeProxies.createFailoverProxyProvider(NameNodeProxies.java:490) ... 33 more Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException: Class org.apache.hadoop.hdfs.server.namenode.ha.Con at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2349) at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2373) ... 35 more Caused by: java.lang.ClassNotFoundException: Class org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProvider not at org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:2255) at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2347) ... 36 more 2021-11-04 21:27:35,797 INFO org.apache.hadoop.mapreduce.v2.hs.JobHistory: Stopping JobHistory 2021-11-04 21:27:35,797 INFO org.apache.hadoop.service.AbstractService: Service org.apache.hadoop.mapreduce.v2.hs.JobHistory Couldn't create proxy provider null java.lang.RuntimeException: java.io.IOException: Couldn't create proxy provider null at org.apache.hadoop.fs.FileContext.getFileContext(FileContext.java:469) at org.apache.hadoop.fs.FileContext.getFileContext(FileContext.java:490) at org.apache.hadoop.mapreduce.v2.jobhistory.JobHistoryUtils.getDefaultFileContext(JobHistoryUtils.java:247) at org.apache.hadoop.mapreduce.v2.jobhistory.JobHistoryUtils.ensurePathInDefaultFileSystem(JobHistoryUtils.java:277) at org.apache.hadoop.mapreduce.v2.jobhistory.JobHistoryUtils.getConfiguredHistoryServerDoneDirPrefix(JobHistoryUtils at org.apache.hadoop.mapreduce.v2.hs.HistoryFileManager.tryCreatingHistoryDirs(HistoryFileManager.java:673) at org.apache.hadoop.mapreduce.v2.hs.HistoryFileManager.createHistoryDirs(HistoryFileManager.java:633) at org.apache.hadoop.mapreduce.v2.hs.HistoryFileManager.serviceInit(HistoryFileManager.java:594) at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163) at org.apache.hadoop.mapreduce.v2.hs.JobHistory.serviceInit(JobHistory.java:95) at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163) at org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:107) at org.apache.hadoop.mapreduce.v2.hs.JobHistoryServer.serviceInit(JobHistoryServer.java:154) at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163) at org.apache.hadoop.mapreduce.v2.hs.JobHistoryServer.launchJobHistoryServer(JobHistoryServer.java:229) at org.apache.hadoop.mapreduce.v2.hs.JobHistoryServer.main(JobHistoryServer.java:239) Caused by: java.io.IOException: Couldn't create proxy provider null at org.apache.hadoop.hdfs.NameNodeProxies.createFailoverProxyProvider(NameNodeProxies.java:515) at org.apache.hadoop.hdfs.NameNodeProxies.createProxy(NameNodeProxies.java:170) at org.apache.hadoop.hdfs.DFSClient. (DFSClient.java:762) at org.apache.hadoop.hdfs.DFSClient. (DFSClient.java:693) at org.apache.hadoop.fs.Hdfs. (Hdfs.java:90) 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.fs.AbstractFileSystem.newInstance(AbstractFileSystem.java:134) at org.apache.hadoop.fs.AbstractFileSystem.createFileSystem(AbstractFileSystem.java:172) at org.apache.hadoop.fs.AbstractFileSystem.get(AbstractFileSystem.java:257) at org.apache.hadoop.fs.FileContext$2.run(FileContext.java:341) at org.apache.hadoop.fs.FileContext$2.run(FileContext.java:338) 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:1920) at org.apache.hadoop.fs.FileContext.getAbstractFileSystem(FileContext.java:338) at org.apache.hadoop.fs.FileContext.getFileContext(FileContext.java:464) ... 15 more Caused by: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.ClassNotFoundException: Class org.apache.hadoop at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2381) at org.apache.hadoop.hdfs.NameNodeProxies.getFailoverProxyProviderClass(NameNodeProxies.java:464) at org.apache.hadoop.hdfs.NameNodeProxies.createFailoverProxyProvider(NameNodeProxies.java:490) ... 33 more Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException: Class org.apache.hadoop.hdfs.server.namenode.ha.Con at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2349) at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2373) ... 35 more Caused by: java.lang.ClassNotFoundException: Class org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProvider not at org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:2255) at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2347) ... 36 more 2021-11-04 21:27:35,797 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Stopping JobHistoryServer metrics system... 2021-11-04 21:27:35,797 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: JobHistoryServer metrics system stopped. 2021-11-04 21:27:35,797 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: JobHistoryServer metrics system shutdown com 2021-11-04 21:27:35,798 FATAL org.apache.hadoop.mapreduce.v2.hs.JobHistoryServer: Error starting JobHistoryServer java.lang.RuntimeException: java.io.IOException: Couldn't create proxy provider null at org.apache.hadoop.fs.FileContext.getFileContext(FileContext.java:469) at org.apache.hadoop.fs.FileContext.getFileContext(FileContext.java:490) at org.apache.hadoop.mapreduce.v2.jobhistory.JobHistoryUtils.getDefaultFileContext(JobHistoryUtils.java:247) at org.apache.hadoop.mapreduce.v2.jobhistory.JobHistoryUtils.ensurePathInDefaultFileSystem(JobHistoryUtils.java:277) at org.apache.hadoop.mapreduce.v2.jobhistory.JobHistoryUtils.getConfiguredHistoryServerDoneDirPrefix(JobHistoryUtils at org.apache.hadoop.mapreduce.v2.hs.HistoryFileManager.tryCreatingHistoryDirs(HistoryFileManager.java:673) at org.apache.hadoop.mapreduce.v2.hs.HistoryFileManager.createHistoryDirs(HistoryFileManager.java:633) at org.apache.hadoop.mapreduce.v2.hs.HistoryFileManager.serviceInit(HistoryFileManager.java:594) at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163) at org.apache.hadoop.mapreduce.v2.hs.JobHistory.serviceInit(JobHistory.java:95) at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163) at org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:107) at org.apache.hadoop.mapreduce.v2.hs.JobHistoryServer.serviceInit(JobHistoryServer.java:154) at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163) at org.apache.hadoop.mapreduce.v2.hs.JobHistoryServer.launchJobHistoryServer(JobHistoryServer.java:229) at org.apache.hadoop.mapreduce.v2.hs.JobHistoryServer.main(JobHistoryServer.java:239) Caused by: java.io.IOException: Couldn't create proxy provider null at org.apache.hadoop.hdfs.NameNodeProxies.createFailoverProxyProvider(NameNodeProxies.java:515) at org.apache.hadoop.hdfs.NameNodeProxies.createProxy(NameNodeProxies.java:170) at org.apache.hadoop.hdfs.DFSClient. (DFSClient.java:762) at org.apache.hadoop.hdfs.DFSClient. (DFSClient.java:693) at org.apache.hadoop.fs.Hdfs. (Hdfs.java:90) 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.fs.AbstractFileSystem.newInstance(AbstractFileSystem.java:134) at org.apache.hadoop.fs.AbstractFileSystem.createFileSystem(AbstractFileSystem.java:172) at org.apache.hadoop.fs.AbstractFileSystem.get(AbstractFileSystem.java:257) at org.apache.hadoop.fs.FileContext$2.run(FileContext.java:341) at org.apache.hadoop.fs.FileContext$2.run(FileContext.java:338) 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:1920) at org.apache.hadoop.fs.FileContext.getAbstractFileSystem(FileContext.java:338) at org.apache.hadoop.fs.FileContext.getFileContext(FileContext.java:464) ... 15 more Caused by: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.ClassNotFoundException: Class org.apache.hadoop at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2381) at org.apache.hadoop.hdfs.NameNodeProxies.getFailoverProxyProviderClass(NameNodeProxies.java:464) at org.apache.hadoop.hdfs.NameNodeProxies.createFailoverProxyProvider(NameNodeProxies.java:490) ... 33 more Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException: Class org.apache.hadoop.hdfs.server.namenode.ha.Con at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2349) at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2373) ... 35 more Caused by: java.lang.ClassNotFoundException: Class org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProvider not at org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:2255) at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2347) ... 36 more
类名错误
解决方法hdfs-site.xml内
dfs.client.failover.proxy.provider.mycluster org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProvider
修改为
dfs.client.failover.proxy.provider.mycluster org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider
再重新格式化hadoop,格式化教程见下面链接
https://blog.csdn.net/qq_51903852/article/details/121141697
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