mfsmetalogger(8)¶

NAME¶

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

SYNOPSIS¶

mfsmetalogger [-f] [-c CFGFILE] [-p PIDFILE] [-u] [-d] [-t LOCKTIMEOUT] [ACTION]
mfsmetalogger -s [-c CFGFILE]
mfsmetalogger -v
mfsmetalogger -h

DESCRIPTION¶

mfsmetalogger is the metadata replication server of the Lizard File System. Depending on the parameters given to it, it can start, restart or stop the LizardFS metalogger process. Without any options it starts the LizardFS metalogger, killing any previously run process if a 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 the configuration file (default is mfsmetalogger.cfg in the system configuration directory).
`-u`	log undefined configuration values (for which defaults are assumed)
`-d`	run in the foreground, don’t daemonize
`-t LOCKTIMEOUT`	how long to wait for lockfile (default is 60 seconds)
`-p PIDFILE`	write pid to given file

ACTION: is 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 the mfsmetalogger.cfg(5) manual page for details
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¶

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/>.