Hey Alex, Thank you so much..:) Regards, Mohammad Tariq
On Tue, Nov 29, 2011 at 1:54 PM, Alexander C.H. Lorenz <wget.n...@googlemail.com> wrote: > Hey, thanks. I corrected the answer. > best, > Alex > btw skype is open ;) > > On Tue, Nov 29, 2011 at 9:24 AM, Alexander C.H. Lorenz > <wget.n...@googlemail.com> wrote: >> >> 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. >> > > > > -- > Alexander Lorenz > http://mapredit.blogspot.com > P Think of the environment: please don't print this email unless you really > need to. > >
