GFMD(8)GFMD(8)NAME gfmd(8) - Gfarm metadata server
SYNOPSIS
gfmd [ options ]
DESCRIPTION
gfmd is a Gfarm filesystem metadata server for accessing the filesystem metadata of the Gfarm filesystem. gfmd must be running on a meta-
data server node in advance.
It is possible for gfmd to be executed as a non-privileged user process, although only the user that executes the gfmd can be authenti-
cated. Other users cannot use it. For details, see SETUP.private.en document
To access gfmd, the hostname and the port number should be specified by the metadb_server_host and metadb_server_port statements, respec-
tively, in ~/.gfarm2rc or in %%SYSCONFDIR%%/gfarm2.conf on a client node.
OPTIONS -L log-level
Specifies a log priority level. The log output, which priority is higher or equal to this level, will be sent to syslog or standard
error. Please refer gfarm2.conf(5) for the priority levels which can be specified by this option.
-P pid-file
Specifies a file name to be used to record the process ID of gfmd.
-d Specifies the debug mode. With the -d option, gfmd runs as a foreground process, not a daemon.
If this option is specified and -L is not specified, the log level is set to "debug".
-f config-file
Specifies a configuration file that is read instead of the default configuration file.
-p port
Specifies a port number to be used by gfmd.
-s syslog-facility
Specifies a syslog facility to report errors encountered by gfmd. By default, local0 is used.
-v Makes gfmd output verbose log message on authentication. This is useful, when one has to resolve an issue about GSI authenticaion.
-? Displays a list of command options.
FILES
%%SYSCONFDIR%%/gfmd.conf
configuration file
SEE ALSO gfarm2.conf(5)Gfarm 20 December 2010 GFMD(8)
Check Out this Related Man Page
GFREG(1)GFREG(1)NAME
gfreg - register a Gfarm file, Gfarm file fragments, or a Gfarm directory
SYNOPSIS
gfreg [ -p ] [ -h filesystem-node | -H hostfile | -D domainname ] [ -a architecture ] program ... gfarm-URL
gfreg [ -i ] [ -h filesystem-node | -H hostfile | -D domainname ] localfile ... gfarm-URL
gfreg -N total-num-of-fragments -I fragment-index [ -h filesystem-node | -H hostfile | -D domainname ] localfile ... gfarm-URL
gfreg -r [ -h filesystem-node | -H hostfile | -D domainname ] [ -a architecture ] [ directory | program | localfile ] ... gfarm-URL
DESCRIPTION
The first form copies and registers the program as a Gfarm file gfarm-URL in the Gfarm filesystem. When gfarm-URL is a directory, multiple
programs can be specified. After the registration, the gfarm-URL can be specified as a program name of gfrun(1) and gfmpirun_p4(1). With-
out the -p option, only executable file can be specified. With the -p option, non-executable file can be specified as well. Without the
-a option or the -h option, architecture of the program is assumed to be the same architecture as the client host on that gfreg(1) is exe-
cuted, which is obtained by the Gfarm metaserver.
The second form registers one or more localfiles as a single Gfarm file. Without the -i option, only non-executable file can be specified
as localfile. With the -i option, both excutable and non-executable file can be specified as localfile. The destination filesystem node
will be automatically selected by CPU load average. With any one of -h, -H, -D options, filesystem node can be limited.
The third form registers localfile as a file fragment of a Gfarm file. The total number of fragments and the fragment index are specified
by the -N option and the -I option, respectively. When gfarm-URL is a directory, multiple localfiles can be specified. The destination
filesystemnode will be automatically decided by CPU load average unless any one of -h, -H, -D options is explicitly specified. When the
gfreg command of this form is executed on a filesystem node, the local filesystem node is always selected rather than a remote filesys-
temnode. In this case, -h, -H, -D options help to store files dispersively.
The fourth form registers the directory as a Gfarm directory gfarm-URL, the program or the localfile as a Gfarm file gfarm-URL. If direc-
tory have some sub directories and/or files, they will be registered recursively. The non-executable file localfile will be registered as
a file has one fragment. A non-executable file in the directory will be registered in the same way. When gfarm-URL already exists as a
directory, multiple directories, programs, and localfiles can be specified and they will be registered in gfarm-URL. They can be mixed in
parameteres, while other forms inhibit this manner. If gfarm-URL does not exist, one directory or one program, or one localfile can be
specified and it will be registered as gfarm-URL. Refer to the first form's part above to specify filesystem node thatprogfarms and files
will reside with the -a option or the -h option.
OPTIONS -f overwrites gfarm-URL even if it exits as a Gfarm file.
-? displays a list of command options.
Gfarm 05 April 2006 GFREG(1)