Correction (early here and no coffee): If you set the webuser to the superuser you can see everything with the webgui. Was not cleary enough. The webuser in default is a user with lesser permissions. Sorry,
Alex On Tue, Nov 29, 2011 at 8:49 AM, Mohammad Tariq <donta...@gmail.com> wrote: > Thanks for the info Alex > > Regards, > Mohammad Tariq > > > > On Tue, Nov 29, 2011 at 1:09 PM, Alexander C.H. Lorenz > <wget.n...@googlemail.com> wrote: > > Hi, > > the user "webuser" is a internal user (dfs.web.ugi = webuser, webgroup) > and > > can be configured. This is the superuser, can read all content and is > > usually used by the webinterfaces. You can add a system user (adduser > > webuser -g webgroup). > > - Alex > > > > On Mon, Nov 28, 2011 at 9:21 PM, Mohammad Tariq <donta...@gmail.com> > wrote: > >> > >> Hello, > >> > >> Although the namenode is running properly I can see the below shown > >> warning in the log file.Could anyone tell me its meaning???? > >> > >> 2011-11-29 01:42:30,582 WARN > >> org.apache.hadoop.security.ShellBasedUnixGroupsMapping: got exception > >> trying to get groups for user webuser > >> org.apache.hadoop.util.Shell$ExitCodeException: id: webuser: No such > user > >> > >> at org.apache.hadoop.util.Shell.runCommand(Shell.java:255) > >> at org.apache.hadoop.util.Shell.run(Shell.java:182) > >> at > >> > org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:375) > >> at org.apache.hadoop.util.Shell.execCommand(Shell.java:461) > >> at org.apache.hadoop.util.Shell.execCommand(Shell.java:444) > >> at > >> > org.apache.hadoop.security.ShellBasedUnixGroupsMapping.getUnixGroups(ShellBasedUnixGroupsMapping.java:68) > >> at > >> > org.apache.hadoop.security.ShellBasedUnixGroupsMapping.getGroups(ShellBasedUnixGroupsMapping.java:45) > >> at org.apache.hadoop.security.Groups.getGroups(Groups.java:79) > >> at > >> > org.apache.hadoop.security.UserGroupInformation.getGroupNames(UserGroupInformation.java:966) > >> at > >> > org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.<init>(FSPermissionChecker.java:50) > >> at > >> > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkPermission(FSNamesystem.java:5160) > >> at > >> > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkTraverse(FSNamesystem.java:5143) > >> at > >> > org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getFileInfo(FSNamesystem.java:1992) > >> at > >> > org.apache.hadoop.hdfs.server.namenode.NameNode.getFileInfo(NameNode.java:837) > >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > >> at > >> > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) > >> at > >> > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > >> at java.lang.reflect.Method.invoke(Method.java:597) > >> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:563) > >> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1388) > >> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1384) > >> at java.security.AccessController.doPrivileged(Native Method) > >> at javax.security.auth.Subject.doAs(Subject.java:396) > >> at > >> > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059) > >> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1382) > >> 2011-11-29 01:44:59,571 INFO > >> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Roll Edit Log > >> from 127.0.0.1 > >> 2011-11-29 01:44:59,572 INFO > >> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Number of > >> transactions: 0 Total time for transactions(ms): 0Number of > >> transactions batched in Syncs: 0 Number of syncs: 0 SyncTimes(ms): 0 > >> 2011-11-29 01:45:02,416 INFO > >> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Roll FSImage from > >> 127.0.0.1 > >> 2011-11-29 01:45:02,416 INFO > >> org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Number of > >> transactions: 0 Total time for transactions(ms): 0Number of > >> transactions batched in Syncs: 0 Number of syncs: 1 SyncTimes(ms): 109 > >> > >> Regards, > >> Mohammad Tariq > > > > > > > > -- > > Alexander Lorenz > > http://mapredit.blogspot.com > > P Think of the environment: please don't print this email unless you > really > > need to. > > > > > -- Alexander Lorenz http://mapredit.blogspot.com *P **Think of the environment: please don't print this email unless you really need to.*
