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mfschunkserver(8)	     This is part of MooseFS	       mfschunkserver(8)

NAME
     mfschunkserver - start, restart or stop MooseFS chunkserver process

SYNOPSIS
     mfschunkserver [-c CFGFILE] [-f] [-d] [-u] [-n] [-t LOCKTIMEOUT] [ACTION]

     mfschunkserver -v

     mfschunkserver -h

DESCRIPTION
     mfschunkserver is the data server of MooseFS.

OPTIONS
     -v     print version information and exit

     -h     print usage information and exit

     -c CFGFILE
	    specify  alternative  path	of  configuration  file  (default is mf-
	    schunkserver.cfg in system configuration directory)

     -f     run in foreground, don't daemonize

     -d     run with dangerous options (names: DANGEROUS_*)

     -u     log undefined configuration values (when default is assumed)

     -n     do not attempt to increase limit of core dump size

     -t LOCKTIMEOUT
	    how long to wait for lockfile (in seconds; default is 60 seconds)

     ACTION
	    tells chunkserver to perform one of the following actions:

	    start    Start chunkserver process if the  process	is  not  already
		     running, otherwise display error message.

	    stop     Stop  chunkserver process if the process is running, other-
		     wise display error message.

	    restart  (default action) If the  chunkserver  process  is	running,
		     restart it, if it's not running, start it.

	    reload   Send  a  signal  to  chunkserver  process	to reload config
		     files.

	    info     Send a signal to chunkserver process to dump debug informa-
		     tion file in working directory.

	    test     Displays "mfschunkserver pid: PID" if  the  chunkserver  is
		     running  (and return 0) or  "mfschunkserver is not running"
		     otherwise (and return 1).

	    kill     Send termination signal to chunkserver process.

	    restore  Not implemented.

FILES
     mfschunkserver.cfg
	    configuration file for MooseFS chunkserver	process;  refer  to  mf-
	    schunkserver.cfg(5) manual for details

     mfshdd.cfg
	    list of directories (mountpoints) used for MooseFS storage; refer to
	    mfshdd.cfg(5) manual for details

     .mfschunkserver.lock
	    lock  file	of  running MooseFS chunkserver process (created in data
	    directory)

     chunkserverid.mfs
	    chunkserver ID, assigned by MooseFS master during  first  connection
	    (created in data directory)

     csstats.mfs
	    chunkserver charts stats (created in data directory)

     .mfschunkserver_info.txt
	    chunkserver  info  file, created by sending the process INFO signal,
	    with work parameters that can be used for debugging/support purposes
	    (created in data directory)

REPORTING BUGS
     Report bugs to <bugs@moosefs.com>.

COPYRIGHT
     Copyright (C) 2026 Jakub Kruszona-Zawadzki, Saglabs SA

     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 Soft-
     ware 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  de-
     tails.

     You  should  have	received  a copy of the GNU General Public License along
     with this program; if not, see <https://www.gnu.org/licenses/>.

SEE ALSO
     mfsmaster(8), mfsmount(8), mfschunkserver.cfg(5), mfshdd.cfg(5)

MooseFS 4.59.1-1		    May 2026		       mfschunkserver(8)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=mfschunkserver&sektion=8&manpath=FreeBSD+Ports+15.1.quarterly>

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