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yarn.nodemanager.local-dirs文件夾的文件權限應爲多少？我弄亂了這些文件的權限，無法解決它。目前我已將文件夾權限設置爲755紗線：hadoop。每當我嘗試運行節點管理器時，我遇到EPERM：操作不允許的錯誤。詳情 -Namenode引發EPERM：啓動時不允許操作
2014-06-19 22:15:17,954 INFO org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService: usercache path : file://opt1/yarn/nm2/usercache_DEL_1403241103430
2014-06-19 22:15:17,954 INFO org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService: usercache path : file://opt1/yarn/nm2/usercache_DEL_1403241317919
2014-06-19 22:15:17,954 INFO org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService: usercache path : file://opt1/yarn/nm2/usercache_DEL_1403241109852
2014-06-19 22:15:17,954 INFO org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService: usercache path : file://opt1/yarn/nm2/usercache_DEL_1403241098628
2014-06-19 22:15:17,992 INFO org.apache.hadoop.service.AbstractService: Service org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService failed in state INITED; cause: org.apache.hadoop.yarn.exceptions.YarnRuntimeException: Failed to initialize LocalizationService
org.apache.hadoop.yarn.exceptions.YarnRuntimeException: Failed to initialize LocalizationService
at org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService.serviceInit(ResourceLocalizationService.java:233)
at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
at org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:108)
at org.apache.hadoop.yarn.server.nodemanager.containermanager.ContainerManagerImpl.serviceInit(ContainerManagerImpl.java:220)
at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
at org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:108)
at org.apache.hadoop.yarn.server.nodemanager.NodeManager.serviceInit(NodeManager.java:188)
at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
at org.apache.hadoop.yarn.server.nodemanager.NodeManager.initAndStartNodeManager(NodeManager.java:353)
at org.apache.hadoop.yarn.server.nodemanager.NodeManager.main(NodeManager.java:401)
Caused by: EPERM: Operation not permitted
at org.apache.hadoop.io.nativeio.NativeIO$POSIX.chmodImpl(Native Method)
at org.apache.hadoop.io.nativeio.NativeIO$POSIX.chmod(NativeIO.java:226)
at org.apache.hadoop.fs.RawLocalFileSystem.setPermission(RawLocalFileSystem.java:629)
at org.apache.hadoop.fs.RawLocalFileSystem.mkdirs(RawLocalFileSystem.java:421)
at org.apache.hadoop.fs.FileSystem.primitiveMkdir(FileSystem.java:1061)
at org.apache.hadoop.fs.DelegateToFileSystem.mkdir(DelegateToFileSystem.java:157)
at org.apache.hadoop.fs.FilterFs.mkdir(FilterFs.java:187)
at org.apache.hadoop.fs.FileContext$4.next(FileContext.java:720)
at org.apache.hadoop.fs.FileContext$4.next(FileContext.java:716)
at org.apache.hadoop.fs.FSLinkResolver.resolve(FSLinkResolver.java:90)
at org.apache.hadoop.fs.FileContext.mkdir(FileContext.java:716)
at org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.ResourceLocalizationService.serviceInit(ResourceLocalizationService.java:230)
... 9 more
的地方迪爾斯文件夾具有啓動失敗的嘗試後，下列文件夾 - filecache，nmPrivate，3 usercache_DEL_timestamp。根據錯誤的位置（ResourceLocalizationService.java，第233行），有三種可能的操作會引發此錯誤 -
a）清理舊文件 - 這種方式有效，如日誌輸出
b）創建新文件 - After失敗的啓動嘗試，我在本地目錄中看到三種文件 - 三個usercache_DEL_ *，filecache，nmPrivate文件。
c）製作日誌路徑 - 我已經檢查了日誌文件夾的權限775紗線：hadoop。
什麼可能出錯？我正在使用Cloudera來管理我的集羣。