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https://issues.apache.org/jira/browse/FLUME-1305?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13398821#comment-13398821
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Mubarak Seyed commented on FLUME-1305:
--------------------------------------
Do i need to create a flume user in NN host too? looks like NN host checks
locally
> HDFSEventSink - NN UGI for flume user throws exception
> ------------------------------------------------------
>
> Key: FLUME-1305
> URL: https://issues.apache.org/jira/browse/FLUME-1305
> Project: Flume
> Issue Type: Bug
> Components: Sinks+Sources
> Reporter: Mubarak Seyed
> Labels: newbie
>
> It appears from test that NN getFileInfo() throws "No Such User" for flume
> user.
> All the flume agents runs as flume user and they are able to write to HDFS.
> {code}
> 2012-06-21 20:04:38,677 WARN
> org.apache.hadoop.security.ShellBasedUnixGroupsMapping: got exception trying
> to get groups for user flume
> org.apache.hadoop.util.Shell$ExitCodeException: id: flume: No such user
> at org.apache.hadoop.util.Shell.runCommand(Shell.java:255)
> at org.apache.hadoop.util.Shell.run(Shell.java:182)
> at
> org.apache.hadoop.util.Shell$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:66)
> at
> org.apache.hadoop.security.ShellBasedUnixGroupsMapping.getGroups(ShellBasedUnixGroupsMapping.java:43)
> at org.apache.hadoop.security.Groups.getGroups(Groups.java:79)
> at
> org.apache.hadoop.security.UserGroupInformation.getGroupNames(UserGroupInformation.java:1034)
> at
> org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.<init>(FSPermissionChecker.java:50)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkPermission(FSNamesystem.java:5163)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkTraverse(FSNamesystem.java:5146)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getFileInfo(FSNamesystem.java:1951)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNode.getFileInfo(NameNode.java:805)
> at sun.reflect.GeneratedMethodAccessor11.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:557)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1434)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1430)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:396)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1127)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1428)
> {code}
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