mfsmetarestore(8) - Linux man page

Name

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

Synopsis

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

mfsmetarestore -m METADATAFILE

mfsmetarestore -a [-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 MooseFS 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.

-v: print version information and exit
-?: print version information and exit
-a: autorestore mode (see above)
-d DATAPATH: master data directory (for autorestore mode)
-m METADATAFILE: specify input metadata image file
-o NEWMETADATAFILE: specify output metadata image file

Files

metadata.mfs: Moose File System metadata image as read by mfsmaster process
metadata.mfs.back: Moose File System metadata image as left by killed or crashed mfsmaster process
changelog.*.mfs: Moose File System metadata change logs

Reporting Bugs

Report bugs to <bugs@moosefs.com>.

Copyright

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 3.

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, see <http://www.gnu.org/licenses/>.