3.1.5 Distributing the DFS File System Configuration Information

Distribute the DFS file system configuration file generated on the master server to the slave server development server, and collaboration server. Refer to "4.1.3.7 Generating and Distributing the DFS File System Configuration Information" for information on generating DFS file systems.

The procedure for distributing file system configuration information is described below using the following environment as an example:

File system ID:	1
Logical file system name:	pdfs1
Slave servers, development server, collaboration server:	slave1, slave2, slave3, slave4, slave5, develop, collaborate

Log in to the master server with root permissions.
Confirm that the user ID for executing MapReduce is set in the configuration file created in "4.1.3.7 Generating and Distributing the DFS File System Configuration Information".
If the user ID for executing MapReduce is not set, set the user ID for executing MapReduce by checking in "4.1.3.3 Setting the User ID for Executing MapReduce".
```
# cat <directory where configuration file was created>/client.conf.pdfs1
FSID 1
MDS kawa4 29000
MDS kawa5 29000
DEV /dev/disk/by-id/scsi-1FUJITSU_300000370107 0 7341778
DEV /dev/disk/by-id/scsi-1FUJITSU_300000370108 0 6578704
MAPRED mapred              <-- Check that the user ID for executing MapReduce is set
```

Distribute the configuration information file to the slave servers, development server and the collaboration server.

# cd {directory where configuration file was created} <Enter>
# scp -p ./client.conf.pdfs1 root@slave1:/etc/pdfs/client.conf.pdfs1 <Enter>
# scp -p ./client.conf.pdfs1 root@develop:/etc/pdfs/client.conf.pdfs1 <Enter>
# scp -p ./client.conf.pdfs1 root@collaborate:/etc/pdfs/client.conf.pdfs1 <Enter>

Note

Place the configuration information file under "/etc/pdfs" at each server.