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hdfs_dfs [2016/02/23 18:07]
steve
hdfs_dfs [2016/04/18 18:21]
steve
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   * [[Hadoop]]   * [[Hadoop]]
-  * [[hdfs]]+  * [[HDFS]]
   * [[hdfs dfsadmin]]   * [[hdfs dfsadmin]]
 +
 +  * [[https://​developer.yahoo.com/​hadoop/​tutorial/​module2.html#​commandref|HDFS Command Reference]]
  
 ** Permissions:​ ** Note that files listed by ''​hdfs dfs''​ are owned by the ''​hdfs''​ user on the Linux system. That means that files on HDFS must be written / removed / modified by user ''​hdfs''​. Using ''​root''​ will not work. ** Permissions:​ ** Note that files listed by ''​hdfs dfs''​ are owned by the ''​hdfs''​ user on the Linux system. That means that files on HDFS must be written / removed / modified by user ''​hdfs''​. Using ''​root''​ will not work.
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 ** Disable safe mode ** ** Disable safe mode **
  
-HDFS will set itself into safe mode if the set number of possible nodes to fail have failed. See ''​dfs.namenode.safemode.threshold-pct''​ in ''​hdfs-site.xml''​.+HDFS will enable ​safe mode if the set number of possible nodes to fail have failed. See ''​dfs.namenode.safemode.threshold-pct''​ in ''​hdfs-site.xml''​.
  
 <​code>​ <​code>​
 hdfs dfsadmin -safemode leave hdfs dfsadmin -safemode leave
 </​code>​ </​code>​