An error is reported when eclipse is connected to a remote hadoop cluster for development.Exception in thread "Main" org. apache. hadoop. security. accesscontrolexception: Permission denied: User = D, access = write, inode = "data": zxg: supergroup: rwxr-XR-X at Org. apache. hadoop. HDFS. server. namenode. fspermissionchecker. check (fspermissionchecker. java: 207) the user name currently logged on to Windows is inconsistent with that of the hadoop cluster.
Solution (verified by the author under hadoop1.2.0 + jdk1.7 ):Manage the DFS system directory. The current practice is to disable the hadoop service cluster permission authentication, modify the hadoop installation cluster master hadoop-1.2.0/CONF/mapred-site.xml, add: <property> <Name> DFS. Permissions </Name> When <value> false </value> </property> is officially released, you can create a user with the same username as the hadoop cluster on the server without modifying the master's permissions policy.
