1MFSMETARESTORE(8)                                            MFSMETARESTORE(8)
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NAME

6       mfsmetarestore - replay LizardFS metadata change logs or dump LizardFS
7       metadata image
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SYNOPSIS

10       mfsmetarestore [-z] -m OLDMETADATAFILE -o NEWMETADATAFILE [CHANGELOGFILE...]
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12       mfsmetarestore -m METADATAFILE
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14       mfsmetarestore [-z] -a [-d DIRECTORY]
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16       mfsmetarestore -g -d DIRECTORY
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18       mfsmetarestore -v
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20       mfsmetarestore -?
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DESCRIPTION

23       When mfsmetarestore is called with both -m and -o options, it replays
24       given CHANGELOGFILEs on OLDMETADATAFILE and writes result to
25       NEWMETADATAFILE. Multiple change log files can be given.
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27       mfsmetarestore with just -m METADATAFILE option dumps LizardFS metadata
28       image file in human readable form.
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30       mfsmetarestore called with -a option automatically performs all
31       operations needed to merge change log files. Master data directory can
32       be specified using -d DIRECTORY option.
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34       mfsmetarestore -g with path to metadata files, prints latest metadata
35       version that can be restored from disk. Prints 0 if metadata files are
36       corrupted.
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38       -v
39           print version information and exit
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41       -?
42           print version information and exit
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44       -a
45           autorestore mode (see above)
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47       -d DATAPATH
48           master data directory (for autorestore mode)
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50       -m METADATAFILE
51           specify input metadata image file
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53       -o NEWMETADATAFILE
54           specify output metadata image file
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56       -z
57           ignore metadata checksum inconsistency while applying changelogs
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FILES

60       metadata.mfs
61           Lizard File System metadata image as read by mfsmaster process
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63       metadata.mfs.back
64           Lizard File System metadata image as left by killed or crashed
65           mfsmaster process
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67       changelog.*.mfs
68           Lizard File System metadata change logs
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REPORTING BUGS

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

89       mfsmaster(8), moosefs(7)
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93                                  07/14/2018                 MFSMETARESTORE(8)
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