The problem seem to be here, when I start datanode, the dnUser here is datanode other than the user start it, does anyone know how to determine the user?
2018-11-09 17:25:00,706 INFO org.apache.hadoop.http.HttpServer2: Jetty bound to port 50475 815960 2018-11-09 17:25:00,706 INFO org.mortbay.log: jetty-6.1.26 815961 2018-11-09 17:25:00,842 INFO org.mortbay.log: Started SslSocketConnectorSecure@0.0.0.0:50475 815962 2018-11-09 17:25:00,845 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: dnUserName = datanode 815963 2018-11-09 17:25:00,845 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: supergroup = supergroup > On 9 Nov 2018, at 4:09 PM, ZongtianHou <zongtian...@icloud.com.INVALID> wrote: > > And another wired thing, when I try mkdir in hdfs, it show the following > error, > $hadoop dfs -mkdir /user > DEPRECATED: Use of this script to execute hdfs command is deprecated. > Instead use the hdfs command for it. > > mkdir: Permission denied: user=kousouda, access=WRITE, > inode="/":namenode:supergroup:drwxr-xr-x > > why the owner of the root dir is namenode. Other than the user start the > namenode. >> On 9 Nov 2018, at 3:45 PM, ZongtianHou <zongtian...@icloud.com.INVALID >> <mailto:zongtian...@icloud.com.INVALID>> wrote: >> >> I run all process with the same user. And it should be the superuser since >> it start the namenode, is there some configuration I need to do to let the >> datanode become superuser? >>> On 9 Nov 2018, at 3:37 PM, Attila Bukor <abu...@cloudera.com.INVALID >>> <mailto:abu...@cloudera.com.INVALID>> wrote: >>> >>> All HDFS processes (NameNodes, DataNodes, JournalNodes, >>> FailoverControllers) to >>> run as the same user, e.g. “hdfs”. >>> >>> >>>> On 2018. Nov 9., at 8:35, Harinder Singh <harindersinghbedi...@gmail.com >>>> <mailto:harindersinghbedi...@gmail.com>> wrote: >>>> >>>> I think you need a superuser to start the service. Is datanode a superuser? >>>> >>>> Regards >>>> Harinder >>>> >>>> On Thu, Nov 8, 2018 at 11:29 PM ZongtianHou >>>> <zongtian...@icloud.com.invalid <mailto:zongtian...@icloud.com.invalid>> >>>> wrote: >>>> Hi, everyone >>>> I set up kerberos for the hdfs cluster, but after I start name node, then >>>> the datanode, In the namenode log file, it display the following error: >>>> >>>> 2018-11-09 15:09:38,725 WARN >>>> org.apache.hadoop.security.UserGroupInformation: No groups available for >>>> user datanode >>>> 4870 2018-11-09 15:09:38,725 INFO org.apache.hadoop.ipc.Server: IPC Server >>>> handler 0 on 8020, call >>>> org.apache.hadoop.hdfs.server.protocol.DatanodeProtocol.versionRequest >>>> from 127.0.0.1:56409 <http://127.0.0.1:56409/> Call#132 Retry#0: >>>> org.apache.hadoop.security.AccessControlException: Access denied for user >>>> datanode. Superuser privilege is required >>>> >>>> The kerberos auth for name node and data node are both ok, can anyone see >>>> the problem here, any hint will be very appreciated. >>>> --------------------------------------------------------------------- >>>> To unsubscribe, e-mail: user-unsubscr...@hadoop.apache.org >>>> <mailto:user-unsubscr...@hadoop.apache.org> >>>> For additional commands, e-mail: user-h...@hadoop.apache.org >>>> <mailto:user-h...@hadoop.apache.org> >>>> >>> >>> >>> >>> >> >
