NAME¶

mfsmetarestore - replay LizardFS metadata change logs or dump LizardFS metadata image

SYNOPSIS¶

mfsmetarestore [-z] -m OLDMETADATAFILE -o NEWMETADATAFILE [CHANGELOGFILE...]

mfsmetarestore -m METADATAFILE

mfsmetarestore [-z] -a [-d DIRECTORY]

mfsmetarestore -g -d DIRECTORY

mfsmetarestore -v

mfsmetarestore -?

DESCRIPTION¶

When mfsmetarestore is called with both -m and -o options, it replays given CHANGELOGFILEs on OLDMETADATAFILE and writes result to NEWMETADATAFILE. Multiple change log files can be given.

mfsmetarestore with just -m METADATAFILE option dumps LizardFS metadata image file in human readable form.

mfsmetarestore called with -a option automatically performs all operations needed to merge change log files. Master data directory can be specified using -d DIRECTORY option.

mfsmetarestore -g with path to metadata files, prints latest metadata version that can be restored from disk. Prints 0 if metadata files are corrupted.

-v

-?

-a

-d DATAPATH

-m METADATAFILE

-o NEWMETADATAFILE

-z

FILES¶

metadata.mfs

metadata.mfs.back

changelog.*.mfs

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), moosefs(7)