Provided by: gfmd_2.7.20+dfsg-1build1_amd64 
NAME
config-gfarm - set up a metadata server of Gfarm
SYNOPSIS
config-gfarm [options]
DESCRIPTION
config-gfarm is a utility to set up a metadata server of Gfarm file system. The server
program for a metadata server is named gfmd. config-gfarm is required to be run with the
root privilege, unless you use the file system for private purpose such as development,
evaluation or test of Gfarm.
config-gfarm performs the following processes, in that order:
1. Set up the backend database.
2. Generate Gfarm configuration files %%SYSCONFDIR%%/gfarm2.conf and
%%SYSCONFDIR%%/gfmd.conf.
3. Create scripts (or configuration files) to start/stop the backend database and gfmd.
On most systems, config-gfarm puts start/stop scripts gfmd and gfarm-pgsql onto either
/etc/init.d or /etc/rc.d/init.d, according to the operating system.
On Linux with systemd such as Red Hat Enterprise Linux 7 or later, config-gfarm puts
the unit configuration files gfmd.service and gfarm-pgsql.service onto
/etc/systemd/system, and then executes systemctl enable gfmd.service and systemctl
enable gfarm-pgsql.service respectively.
4. Start the backend database and gfmd.
5. Put the script unconfig-gfarm.sh on %%SYSCONFDIR%%. The script does unconfiguration
of the metadata server. It stops gfmd and the backend database, and removes all files
created by config-gfarm including unconfig-gfarm.sh itself.
Before set up a metadata server using config-gfarm, it is recommended to execute
config-gfarm -t. With -t option, the sets up is not performed. Instead, it shows values of
all configurable parameters:
$ config-gfarm -t
prefix [--prefix]:
metadata backend [-b]: postgresql
(available backend: postgresql )
metadata directory [-l]: /var/gfarm-pgsql
metadata log directory [-L]: /var/gfarm-pgsql/pg_xlog
postgresql admin user [-U]: miles
postgresql admin password [-W]: (auto generated)
postgresql user [-u]: gfarm
postgresql password [-w]: (auto generated)
postgresql prefix [-P]: /usr
postgresql version [-V]: 9.2
postgresql XML supported [-X]: no
metadata replication [-r]: no
metaserver hostname [-h]: host1.example.org
matadata admin user [-A]: miles
matadata admin dn [-D]:
portmaster port [-p]: 10602
gfmd port [-m]: 601
auth type [-a]: sharedsecret
rc script for gfmd : /etc/init.d/gfmd
rc script for backend : /etc/init.d/gfarm-pgsql
gfmd conf file : /etc/gfmd.conf
gfarm client conf file : /etc/gfarm2.conf
gfmd pid file : /var/run/gfmd.pid
backend pid file : /var/run/postmaster.pid
The option name surrounded by [ ] means that you can specify a value with that option.
OPTIONS
--prefix path
Configure some paths related to gfmd and the backend database. Specifically, the
followings are affected.
• The directory to put metadata of Gfarm. That is PREFIX/var/gfarm-pgsql if the
backend database is PostgreSQL. The path can also be changed by -l option. When
both options are specified, -l option has preference.
• The directory to put log files about metadata. That is
PREFIX/var/gfarm-pgsql/pg_xlog if the backend database is PostgreSQL. The path can
also be changed by -L option. When both options are specified, -L option has
preference.
• The directory to put journal files of gfmd. That is
PREFIX/var/gfarm-metadata/journal. The path can also be changed by -j option. When
both options are specified, -j option has preference.
• The directory to put PID files of gfmd and the backend database. That is
PREFIX/var/run.
• The directory to put configuration files. That is PREFIX/etc.
• The directory of start/stop scripts for gfmd and its backend database. That is
PREFIX/etc/init.d or PREFIX/rc.d/init.d/etc which is depending on operating
systems.
• If systemd is running on the host, there is a special exception. When an empty
prefix is given by --prefix option on such host, config-gfarm doesn't put unit
configuration files for systemd. Instead, it puts traditional start/stop scripts
at PREFIX/etc/init.d.
• The unconfiguration script unconfig-gfarm.sh. That is
PREFIX/etc/unconfig-gfarm.sh.
The default is "" (empty).
-b backend
Specify backend database. It currently supports "postgresql" (for PostgreSQL) only.
"ldap" (for LDAP) was supported in the past, but not maintained any longer.
config-gfarm -t lists which backend databases are available.
PostgreSQL is chosen by default if "postgresql" is in the list. If the available
backend is "ldap" only, it is still chosen by default. Note that you need to recompile
Gfarm if you'd like to make Gfarm on your system support a backend database not in the
list.
-d digest_type
Enable checksum calculation and specify the digest type of the checksum. The
digest_type argument is a lower-case name which is supported by the OpenSSL library on
the host, such as "md5".
-U username
Specify administrator's username of the Gfarm file system. Since the default value
differs depending on operating systems, execute config-gfarm -t to confirm the
username.
-u username
The configured gfmd will connect to the backend database as the specified username.
The default is "gfarm".
-P prefix
Specify an installation prefix of the backend database (e.g. /usr/local). When
config-gfarm executes an administration command of the backend database, it assumes
the command is installed under the given prefix. An example of those commands is
initdb of PostgreSQL. If this option is omitted, config-gfarm searches directories
listed in the environment variable PATH for the commands.
-V version
Tell version of the backend database to config-gfarm. In most cases, config-gfarm can
detect a correct version number by itself. This option should be used only when
config-gfarm fails to get the correct version number.
-l directory
Specify a path to the directory where the backend database puts files to store
metadata of Gfarm.
If the backend database is PostgreSQL, the directory is commonly called PGDATA
directory. The default is PREFIX/var/gfarm-pgsql where PREFIX is a prefix given by
--prefix option.
-L directory
Specify a path to the directory where the backend database puts log files. If the
backend database is PostgreSQL, the default is PREFIX/var/gfarm-pgsql/pg_xlog where
PREFIX is a prefix given by --prefix option.
-h hostname
Specify a hostname which is used to identify the metadata server. The default is the
fully qualified domainname of the host.
-j directory
Specify a path to the directory where gfmd puts journal files. This option takes an
effect only when metadata replication is enabled by -r option. The default value is
PREFIX/var/gfarm-metadata/journal where PREFIX is a prefix given by --prefix option.
-A username
Specify administrator of the Gfarm file system. If this option is omitted,
config-gfarm gets a username by executing who am i command.
-D subject-dn
Specify a subject DN of global administrator. This option is mandatory, in case that
the authentication method is GSI,
-p port
Specify a TCP port number the configured backend database listens on. The default is
10602.
-m port
Specify a TCP port number the configured gfmd listens on. The default value is 10601
in case of the private mode, 601 otherwise.
-a method
Specify an authentication method. It currently recognizes "sharedsecret" or "gsi". The
default is "sharedsecret".
--help
Show usage, then exit.
-S
Enable the private mode. config-gfarm sets up the Gfarm file system which can be run
without root privilege. Specifically, config-gfarm changes the configuration
procedures as follows:
• The default listen port of gfmd (corresponding with -m option) is changed from 601
to 10601.
• The user map file %%SYSCONFDIR%%/usermap is also created. The metadata server
reads this file when it starts. In the non-private mode, it is required to create
the user accounts for _gfarmmd and _gfarmfs on the operating system. With the user
map file, the creation of the user accounts is not needed. The file defines
mappings of Gfarm system users to actual user accounts.
• The configuration file for gfsd, %%SYSCONFDIR%%/gfsd.conf is also created. In the
non-private mode, gfsd reads the configuration file %%SYSCONFDIR%%/gfarm2.conf
instead, which is read by all Gfarm programs connecting with a metadata server.
%%SYSCONFDIR%%/gfsd.conf is a configuration file cutomized for gfsd running under
the private mode.
-S option never changes locations of start/stop scripts and configuration files. Since
the default locations of those files are usually writable only for privilege users,
config-gfarm fails to create them. To avoid this problem, also specify --prefix
option.
-N
Do not start gfmd or the backend database.
-f
Force overwriting an existing set up.
-t
Show values of all configurable parameters in human readable format, then exit
immediately.
-T
Like -t option, but it shows values in KEY=VALUE format.
-r
Enable metadata replication among metadata servers.
-W password
Specify administrator's password of backend database. This option corresponds with -U
option which specifies the username. By default, the password is generated
automatically.
-w password
The configured gfmd will connect the backend database with the specified password.
This option corresponds with -u option which specifies the username. By default, the
password is generated automatically.
-X
Enable XML Path Language (XPath) support for querying XML extended attributes.
-E
Set up PostgreSQL with the data checksums option. config-gfarm gives --data-checksums
option to initdb command of PostgreSQL. Note that PostgreSQL 9.3 or later is required
to use this feature. This option takes an effect only when the backend database is
PostgreSQL.
FILES
%%SYSCONFDIR%%/gfarm2.conf
configuration file for Gfarm clients
%%SYSCONFDIR%%/gfmd.conf
configuration file for gfmd
%%SYSCONFDIR%%/gfsd.conf
configuration file for gfsd (used only in the private mode)
%%SYSCONFDIR%%/usermap
user mapping definition file (used only in the private mode)
/etc/init.d/gfarm-pgsql
start/stop script for PostgreSQL running as backend database of Gfarm
/etc/init.d/gfmd
start/stop script for gfmd
/etc/systemd/system/gfarm-pgsql.service
unit configuration file for PostgreSQL running as backend database of Gfarm, read by
systemd
/etc/systemd/system/gfmd.service
unit configuration file for gfmd, read by systemd
SEE ALSO
gfarm2.conf(5), config-gfsd(8)