gfimport_text is a sample program for dividing a text file to file fragments by the line and registering it to the Gfarm filesystem.
specifies a list of filesystem nodes. The hostfile consists of a hostname of a filesystem node in each line. The file is almost uniformly divided into file fragments.
if ``-'' is specified, standard input is used to read the host list.
specifies a fragment-file that consists of a fragment size in byte and a filesystem node separated by a white space in each line.
if ``-'' is specified, standard input is used.
specifies an output file.
displays a list of command options.
Example 1. Importing by splitting to specified number of fragments
The following is an example using gfimport_text to import a source_file as gfarm:file by splitting to 8 fragments.
gfsched -N 8 | gfimport_text -H - -o gfarm:file source_file |
Example 2. Importing by splitting to specified number of fragments for particular program
The following is an example using gfimport_text to import a source_file as gfarm:file by splitting to 8 fragments to be processed by gfarm:prog program.
gfsched -N 8 -p gfarm:prog | gfimport_text -H - -o gfarm:file source_file |