NAME

       mfsmetalogger - start, restart or stop Lizard File System metalogger process

SYNOPSIS

       mfsmetalogger [-f] [-c CFGFILE] [-u] [-d] [-t LOCKTIMEOUT] [ACTION]

       mfsmetalogger -s [-c CFGFILE]

       mfsmetalogger -v

       mfsmetalogger -h

DESCRIPTION

       mfsmetalogger is the metadata replication server of Lizard File System. Depending on
       parameters it can start, restart or stop LizardFS metalogger process. Without any options
       it starts LizardFS metalogger, killing previously run process if lock file exists.

       SIGHUP (or reload ACTION) forces mfsmetalogger to reload all configuration files.

       -v
           print version information and exit

       -h
           print usage information and exit

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

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

       -d
           run in foreground, don’t daemonize

       -t LOCKTIMEOUT
           how long to wait for lockfile (default is 60 seconds)

       ACTION is the one of start, stop, restart, reload, test, isalive or kill. Default action
       is restart.

FILES

       mfsmetalogger.cfg
           configuration file for LizardFS metalogger process; refer to mfsmetalogger.cfg(5)
           manual for defails

       mfsmetalogger.lock
           PID file of running LizardFS metalogger process

       .mfsmetalogger.lock
           lock file of running LizardFS metalogger process (created in data directory)

       changelog_ml.*.mfs
           LizardFS filesystem metadata change logs (backup of master change log files)

       metadata.ml.mfs.back
           Latest copy of complete metadata.mfs.back file from LizardFS master.

       sessions.ml.mfs
           Latest copy of sessions.mfs file from LizardFS master.

REPORTING BUGS

       Report bugs to <contact@lizardfs.org>.

COPYRIGHT

       Copyright 2008-2009 Gemius SA, 2013-2015 Skytechnology sp. z o.o.

       LizardFS 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 3.

       LizardFS 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 LizardFS. If
       not, see http://www.gnu.org/licenses/.

SEE ALSO

       mfsmaster(8), mfsmetalogger.cfg(5), moosefs(7)

                                            01/11/2020                           MFSMETALOGGER(8)