NAME

       mfsmaster - start, restart or stop Moose File System master process

SYNOPSIS

       mfsmaster [-c CFGFILE] [-u] [-i] [-a] [-e] [-x[x]] [-t LOCKTIMEOUT] [ACTION]

       mfsmaster -v

       mfsmaster -h

DESCRIPTION

       mfsmaster is the master program of Moose File System.

OPTIONS

       -v     print version information and exit

       -h     print usage information and exit

       -c CFGFILE
              specify  alternative  path of configuration file (default is mfsmaster.cfg in system configuration
              directory)

       -u     log undefined configuration values (when default is assumed)

       -f     run in foreground, don't daemonize

       -t LOCKTIMEOUT
              how long to wait for lockfile (in seconds; default is 1800 seconds)

       -i     ignore some metadata structure errors (attach orphans to root, ignore names without inode,  etc.).
              DO     NOT     use     unless     you    are    ready    to    pick    up    the    pieces.    See
              https://github.com/moosefs/moosefs/issues/151 for discussion.

       -a     automatically restore metadata from change logs

       -e     start without metadata (usable only in pro version - used to start additional masters)

       -x     produce more verbose output

       -xx    even more verbose output

       ACTION is the one of start, stop, restart, reload, test, restore or kill.  Default action is restart. The
              test action will yield one of two responses: "mfsmaster pid: PID" or "mfsmaster is  not  running".
              The  kill  action  will  send  a SIGKILL to the currently running master process. SIGHUP or reload
              action forces mfsmaster to reload all configuration files. restore tries to restore metadata  file
              using  backup  metadata  files and changelogs; if successful it will store recovered metadata file
              end stop, it will never start master process.

FILES

       mfsmaster.cfg
              configuration file for MooseFS master process; refer to mfsmaster.cfg(5) manual for details

       mfsexports.cfg
              MooseFS access control file; refer to mfsexports.cfg(5) manual for details

       mfstopology.cfg
              Network topology definitions; refer to mfstopology.cfg(5) manual for details

       .mfsmaster.lock
              lock file of running MooseFS master process (created in data directory)

       metadata.mfs, metadata.mfs.back
              MooseFS filesystem metadata image (created in data directory)

       changelog.*.mfs
              MooseFS filesystem metadata change logs (created in data directory; merged into metadata.mfs  once
              per hour)

       data.stats
              MooseFS master charts state (created in data directory)

REPORTING BUGS

       Report bugs to <bugs@moosefs.com>.

COPYRIGHT

       Copyright (C) 2023 Jakub Kruszona-Zawadzki, Saglabs SA

       This file is part of MooseFS.

       MooseFS  is  free  software;  you can redistribute it and/or modify it under the terms of the GNU General
       Public License as published by the Free Software Foundation, version 2 (only).

       MooseFS is distributed in the hope that it will be useful, but WITHOUT ANY  WARRANTY;  without  even  the
       implied  warranty  of  MERCHANTABILITY  or  FITNESS  FOR A PARTICULAR PURPOSE. See the GNU General Public
       License for more details.

       You should have received a copy of the GNU General Public License along with MooseFS; if  not,  write  to
       the  Free  Software  Foundation,  Inc.,  51 Franklin St, Fifth Floor, Boston, MA 02111-1301, USA or visit
       http://www.gnu.org/licenses/gpl-2.0.html

SEE ALSO

       mfschunkserver(8), mfsmount(8), mfsmaster.cfg(5), mfsexports.cfg(5), mfstopology.cfg(5)

MooseFS 3.0.117-1                                 February 2023                                     mfsmaster(8)