Home | About | Sematext search-lucene.com search-hadoop.com
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB
 Search Hadoop and all its subprojects:

Switch to Threaded View
HDFS >> mail # user >> Error in namenode log file


Copy link to this message
-
Re: Error in namenode log file
Hey Alex,
  Thank you so much..:)

Regards,
    Mohammad Tariq

On Tue, Nov 29, 2011 at 1:54 PM, Alexander C.H. Lorenz
<[EMAIL PROTECTED]> 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
> <[EMAIL PROTECTED]> 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 <[EMAIL PROTECTED]>
>> wrote:
>>>
>>> Thanks for the info Alex
>>>
>>> Regards,
>>>     Mohammad Tariq
>>>
>>>
>>>
>>> On Tue, Nov 29, 2011 at 1:09 PM, Alexander C.H. Lorenz
>>> <[EMAIL PROTECTED]> 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 <[EMAIL PROTECTED]>
>>> > 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)
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB