1MFSMETALOGGER(8)                                              MFSMETALOGGER(8)
2
3
4

NAME

6       mfsmetalogger - start, restart or stop Lizard File System metalogger
7       process
8

SYNOPSIS

10       mfsmetalogger [-f] [-c CFGFILE] [-u] [-d] [-t LOCKTIMEOUT] [ACTION]
11
12       mfsmetalogger -s [-c CFGFILE]
13
14       mfsmetalogger -v
15
16       mfsmetalogger -h
17

DESCRIPTION

19       mfsmetalogger is the metadata replication server of Lizard File System.
20       Depending on parameters it can start, restart or stop LizardFS
21       metalogger process. Without any options it starts LizardFS metalogger,
22       killing previously run process if lock file exists.
23
24       SIGHUP (or reload ACTION) forces mfsmetalogger to reload all
25       configuration files.
26
27       -v
28           print version information and exit
29
30       -h
31           print usage information and exit
32
33       -c CFGFILE
34           specify alternative path of configuration file (default is
35           mfsmetalogger.cfg in system configuration directory)
36
37       -u
38           log undefined configuration values (when default is assumed)
39
40       -d
41           run in foreground, don’t daemonize
42
43       -t LOCKTIMEOUT
44           how long to wait for lockfile (default is 60 seconds)
45
46       ACTION is the one of start, stop, restart, reload, test, isalive or
47       kill. Default action is restart.
48

FILES

50       mfsmetalogger.cfg
51           configuration file for LizardFS metalogger process; refer to
52           mfsmetalogger.cfg(5) manual for defails
53
54       mfsmetalogger.lock
55           PID file of running LizardFS metalogger process
56
57       .mfsmetalogger.lock
58           lock file of running LizardFS metalogger process (created in data
59           directory)
60
61       changelog_ml.*.mfs
62           LizardFS filesystem metadata change logs (backup of master change
63           log files)
64
65       metadata.ml.mfs.back
66           Latest copy of complete metadata.mfs.back file from LizardFS
67           master.
68
69       sessions.ml.mfs
70           Latest copy of sessions.mfs file from LizardFS master.
71

REPORTING BUGS

73       Report bugs to <contact@lizardfs.org>.
74

76       Copyright 2008-2009 Gemius SA, 2013-2015 Skytechnology sp. z o.o.
77
78       LizardFS is free software: you can redistribute it and/or modify it
79       under the terms of the GNU General Public License as published by the
80       Free Software Foundation, version 3.
81
82       LizardFS is distributed in the hope that it will be useful, but WITHOUT
83       ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
84       FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
85       for more details.
86
87       You should have received a copy of the GNU General Public License along
88       with LizardFS. If not, see http://www.gnu.org/licenses/.
89

SEE ALSO

91       mfsmaster(8), mfsmetalogger.cfg(5), moosefs(7)
92
93
94
95                                  02/09/2023                  MFSMETALOGGER(8)
Impressum