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mfsmaster(8) This is part of MooseFS mfsmaster(8)

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

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

mfsmaster is the master program of Moose File System.

print version information and exit
print usage information and exit
specify alternative path of configuration file (default is mfsmaster.cfg in system configuration directory)
log undefined configuration values (when default is assumed)
run in foreground, don't daemonize
how long to wait for lockfile (in seconds; default is 1800 seconds)
ignore some metadata structure errors
automatically restore metadata from change logs
start without metadata (usable only in pro version - used to start additional masters)
produce more verbose output
even more verbose output
is the one of start, stop, restart, reload, test or kill. Default action is restart. The test action will yeld 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.

configuration file for MooseFS master process; refer to mfsmaster.cfg(5) manual for details
MooseFS access control file; refer to mfsexports.cfg(5) manual for details
Network topology definitions; refer to mfstopology.cfg(5) manual for details
lock file of running MooseFS master process (created in data directory)
metadata.mfs, metadata.mfs.back
MooseFS filesystem metadata image (created in data directory)
MooseFS filesystem metadata change logs (created in data directory; merged into metadata.mfs once per hour)
MooseFS master charts state (created in data directory)

Report bugs to <>.

Copyright (C) 2018 Jakub Kruszona-Zawadzki, Core Technology Sp. z o.o.
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

mfschunkserver(8), mfsmount(8), mfsmaster.cfg(5), mfsexports.cfg(5), mfstopology.cfg(5)
July 2018 MooseFS 3.0.101-1

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