Provided by: gfmd_2.6.7+dfsg-1_amd64 bug

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)