Hadoop webuser：沒有這樣的用戶

Question

在運行hadoop多節點集羣時，我在主日誌上得到了錯誤消息，可以建議做些什麼..？我是否需要創建一個新用戶或我可以給我的現有機器的用戶名在這裏

2013年7月25日19：41：11765 WARN org.apache.hadoop.security.UserGroupInformation：沒有組 for user webuser 2013-07-25 19：41：11,778 WARN org.apache.hadoop.security.ShellBasedUnixGroupsMapping：得到異常 嘗試獲取用戶webuser的組 org.apache.hadoop.util.Shell $ ExitCodeException：id ：webuser：沒有這樣的 用戶

hdfs-site.xml文件

<configuration> 
<property> 
    <name>dfs.replication</name> 
    <value>2</value> 
    <description>Default block replication. 
    The actual number of replications can be specified when the file is created. 
    The default is used if replication is not specified in create time. 
    </description> 
</property> 

</configuration> 

芯-site.xml中

<configuration> 
<property> 
    <name>fs.default.name</name> 
    <value>hdfs://master:54310</value> 
    <description>The name of the default file system. A URI whose 
    scheme and authority determine the FileSystem implementation. The 
    uri's scheme determines the config property (fs.SCHEME.impl) naming 
    the FileSystem implementation class. The uri's authority is used to 
    determine the host, port, etc. for a filesystem.</description> 
</property> 

</configuration> 

mapred-site.xml中

<configuration> 
<property> 
    <name>mapred.job.tracker</name> 
    <value>master:54311</value> 
    <description>The host and port that the MapReduce job tracker runs 
    at. If "local", then jobs are run in-process as a single map 
    and reduce task. 
    </description> 
</property> 

</configuration> 

我跟着http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-multi-node-cluster/。

的Hadoop 1.2.0 碼頭-6.1.26

加入我的HDFS-site.xml中後看起來

<configuration> 
<property> 
    <name>dfs.replication</name> 
    <value>2</value> 
     <description>Default block replication. 
     The actual number of replications can be specified when the file is created. 
      The default is used if replication is not specified in create time. 
</description> 
</property> 
<property> 
<name>dfs.web.ugi</name> 
<value>hduser,hadoop</value> 
</property> 
</configuration> 

Answer 1

編輯dfs.web.ugi財產HDFS現場。 xml並在那裏添加你的用戶。它默認爲webuser，webgroup。