If you are using the HDFS shell to (i.e. bin/hadoop dfs) to operate on HDFS, then your client is the bin/hadoop command that you are executing.
If you have an application that have linked in org.apache.hadoop.fs.FileSystem package, then that application is your "client". Thanks, dhruba -----Original Message----- From: wayne [mailto:[EMAIL PROTECTED] Sent: Monday, March 19, 2007 9:58 AM To: [email protected] Subject: some questions about client in hadoop Hello, In the file hdfs_design.pdf,it tells us that "A client-request to create a file does not reach the Namenode immediately...",so I just want to ask that what does "client" exactly mean,and how to set up a client in the HDFS? I have tried the command: [EMAIL PROTECTED]:hadoop]$bin/hadoop dfs -fs local|dbrg-1:9000 but it didn't work! Please help me. Thanks a lot.
