最近的MR2的基本實施例的構建均失敗,即運行的pI例如,在一個僞分佈式MR2 HDFS集羣,用下面的錯誤:基本權限錯誤
13/07/06 21:20: 47 ERROR security.UserGroupInformation:PriviledgedActionException as:root(auth:SIMPLE)cause:org.apache.hadoop.security.AccessControlException:權限被拒絕:user = root,access = EXECUTE,inode =「/ tmp/hadoop-yarn/staging」 :mapred:mapred:drwxrwx ---
爲什麼會發生這種情況?