gfimport_fixed1
Divide and register a fixed-size data file
Usage
gfimport_fixed [options]
file
Overview
gfimport_fixed is a sample program for dividing a file to file fragments and registering it to the Gfarm filesystem.
Options
-
-H -
hostfile specifies a hostname list of filesystem nodes. The hostfile consists of a hostname of a filesystem node in each line. The file is uniformly divided into file fragments, each file fragment except the last one having the same size. if ``-'' is specified, standard input is used to read the host list.
- -f fragment file
-
specifies a fragment file that consists of a fragment size and a filesystem node separated by a white space in each line.
if ``-'' is specified, standard input is used.
- -l record size
-
specifies the size of fixed-size records in bytes. With this option, file is divided by the multiple size of the record size. Default size is 1.
-
-o gfarm-URL -
specifies an output file.
-
-? -
displays a list of command options.
Examples
Importing by splitting to specified number of fragments
The following is an example using gfimport_fixed to import a source_file as gfarm:file by splitting to 8 fragments.
gfsched -N 8 | gfimport_fixed -H - -o gfarm:file source_file
Importing by splitting to specified number of fragments for particular program
The following is an example using gfimport_fixed 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_fixed -H - -o gfarm:file source_file
Importing into same disposition with an existing gfarm file
The following is an example using gfimport_fixed to import a source_file as gfarm:file into same disposition with existing file gfarm:template.
gfsched gfarm:template | gfimport_fixed -H - -o gfarm:file source_file