mfsmetalogger(8) This is part of MooseFS mfsmetalogger(8)NAMEmfsmetalogger - start, restart or stop Moose File System metalogger
process
SYNOPSISmfsmetalogger [-f] [-c CFGFILE] [-u] [-d] [-t LOCKTIMEOUT] [ACTION]
mfsmetalogger-s [-c CFGFILE]
mfsmetalogger-v
mfsmetalogger-h
DESCRIPTIONmfsmetalogger is the metadata replication server of Moose File System.
Depending on parameters it can start, restart or stop MooseFS metalog‐
ger process. Without any options it starts MooseFS metalogger, killing
previously run process if lock file exists.
SIGHUP (or 'reload' ACTION) forces mfsmetalogger to reload all configu‐
ration files.
mfsmetalogger exists since 1.6.5 version of MooseFS; before this ver‐
sion mfschunkserver(8) was responsible of logging metadata changes.
-v print version information and exit
-h print usage information and exit
-f (deprecated, use start action instead) forcily run MooseFS meta‐
logger process, without trying to kill previous instance (this
option allows to run MooseFS metalogger if stale PID file
exists)
-s (deprecated, use stop action instead) stop MooseFS metalogger
process
-c CFGFILE
specify alternative path of configuration file (default is mfs‐
metalogger.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 or kill.
Default action is restart unless -s (stop) or -f (start) option
is given. Note that -s and -f options are deprecated, likely to
disappear and ACTION parameter to become obligatory in MooseFS
1.7.
FILES
mfsmetalogger.cfg
configuration file for MooseFS metalogger process; refer to mfs‐
metalogger.cfg(5) manual for defails
mfsmetalogger.lock
PID file of running MooseFS metalogger process (created in
RUN_PATH by MooseFS < 1.6.9)
.mfsmetalogger.lock
lock file of running MooseFS metalogger process (created in data
directory since MooseFS 1.6.9)
changelog_ml.*.mfs
MooseFS filesystem metadata change logs (backup of master change
log files)
metadata.ml.mfs.back
Latest copy of complete metadata.mfs.back file from MooseFS mas‐
ter.
sessions.ml.mfs
Latest copy of sessions.mfs file from MooseFS master.
REPORTING BUGS
Report bugs to <bugs@moosefs.com>.
COPYRIGHT
Copyright (C) 2016 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., 59
Temple Place, Suite 330, Boston, MA 02111-1307 USA or visit
http://www.gnu.org/licenses/gpl-2.0.html
SEE ALSOmfsmaster(8), mfsmetalogger.cfg(5), moosefs(7)MooseFS 2.0.83-1 January 2016 mfsmetalogger(8)
