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Edited wiki page Manual2 through web user interface.

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Louwrentius 2010-08-26 19:18:45 +00:00
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@ -158,7 +158,7 @@ This is the most important part of setting up distributed PPSS. It is exactly th
The best way to explain how to create a configuration file for distributed PPSS is to provide an example. In this example, a script is used to encode WAV files to MP3. This script is called 'encode.sh' and takes a filename as an argument. The best way to explain how to create a configuration file for distributed PPSS is to provide an example. In this example, a script is used to encode WAV files to MP3. This script is called 'encode.sh' and takes a filename as an argument.
`./ppss config -C config.cfg -c 'encode.sh ' -d /source/dir -m 192.168.1.100 -u ppss -k ppss-key.key -S ./encode.sh -n nodes.txt -o /some/output/dir --upload --download` `./ppss config -C config.cfg -c 'encode.sh ' -d /source/dir -m 192.168.1.100 -u ppss -k ppss.key -S ./encode.sh -n nodes.txt -o /some/output/dir --upload --download`
It is quite a long command line, however, it is executed only once. Afther that, the config file config.cfg can be used for all further commands. It is quite a long command line, however, it is executed only once. Afther that, the config file config.cfg can be used for all further commands.
@ -182,7 +182,7 @@ This option specifies the location on the *server* where the files reside that m
The -m option specifies the SSH server that acts as both fileserver and SSH server for communication between nodes. The SSH server is mainly used for file-locking: nodes know that locked files are already processed or being processed, so another unlocked file must be selected. The -m option specifies the SSH server that acts as both fileserver and SSH server for communication between nodes. The SSH server is mainly used for file-locking: nodes know that locked files are already processed or being processed, so another unlocked file must be selected.
If the server acts both as a file server and SSH server, it is not recommended to use it also as a node, in this case for encoding. Filetransers using SSH can take quite some processing power. Using different hosts as a file server (through SCP) and master is currently not possible (yet). If the server acts both as a file server and SSH server, it is not recommended to use it also as a node, in this case for encoding. File transfers using SSH can take quite some processing power. Using different hosts as a file server (through SCP) and master is currently not possible (yet).
*User name* *User name*
@ -202,9 +202,9 @@ The -n option specifies the file containing all nodes. For every node, PPSS will
*Transfer files to local host* *Transfer files to local host*
--download: If this option is specified, the file is copied from the source directory to a local temporary working directory for local processing. This is necessary if SCP is used to access files that must be processed. --download: If this option is specified, the file that is to be processed is copied from the source directory to a local temporary working directory for local processing. This is necessary if SCP is used to access files that must be processed.
If files are distributed over NFS or SMB, the files seem to be present on the local system, because it is just a mount point and thus just a part of the local file system. In this case, the --download option can be omitted. If files are distributed over NFS or SMB, the files look like they are present on the local system, because it is just a mount point and thus just a part of the local file system. In this case, the --download option can be omitted.
*The output directory* *The output directory*