Hi I am testing the hadoop nfs within hadoop-2.2.0. I succeed to mount the hdfs to my /mnt/hadoop : #mount -t nfs -o vers=3,proto=tcp,nolock $mynamenodeIP:/ /mn/hadoop
I test the permission check when I cp something to the /mn/hadoop,It worked. [root@hadoop2 ~]# cp install.log /mnt/ cp: cannot create regular file `/mnt/install.log': Permission denied After that,I create a softlink to a Logs directory belong to php application. #ll -a lrwxrwxrwx 1 root root 11 12-12 05:06 Logs -> /mnt/hadoop Magic thing comes out ,the permission check passed,the Logger can log to my Logs directory[1]. I still can not write any thing as root user to the *Logs *directory because of the permission check which is quite known before. Any explanation about the unworking permission in my test? [1]Logsdirectory------------------------------------------------------------------------------------------------------- 2013-12-12 11:00:27,875 INFO org.apache.hadoop.hdfs.StateChange: BLOCK* fsync: /.reserved/.inodes/16385/13_12_12_AGENTS_TERM.log for DFSClient_NONMAPREDUCE_-1541949548_23 2013-12-12 11:00:27,891 INFO org.apache.hadoop.hdfs.StateChange: BLOCK* fsync: /.reserved/.inodes/16385/13_12_12_db_Mysql.log for DFSClient_NONMAPREDUCE_-1541949548_23 2013-12-12 11:00:27,906 INFO org.apache.hadoop.hdfs.StateChange: BLOCK* fsync: /.reserved/.inodes/16385/13_12_12_db_Mysql.log for DFSClient_NONMAPREDUCE_-1541949548_23 2013-12-12 11:00:27,919 INFO org.apache.hadoop.hdfs.StateChange: BLOCK* fsync: /.reserved/.inodes/16385/13_12_12_AGENTS_TERM.log for DFSClient_NONMAPREDUCE_-1541949548_23 2013-12-12 11:00:27,932 INFO org.apache.hadoop.hdfs.StateChange: BLOCK* fsync: /.reserved/.inodes/16385/13_12_12_AGENTS_TERM.log for DFSClient_NONMAPREDUCE_-1541949548_23 2013-12-12 11:00:27,945 INFO org.apache.hadoop.hdfs.StateChange: BLOCK* fsync: /.reserved/.inodes/16385/13_12_12_AGENTS_TERM.log for DFSClient_NONMAPREDUCE_-1541949548_23 2013-12-12 11:00:27,963 INFO org.apache.hadoop.hdfs.StateChange: BLOCK* fsync: /.reserved/.inodes/16385/13_12_12_systemErr.log for DFSClient_NONMAPREDUCE_-1541949548_23
