mfschunkserver8

Usage

Overview

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 mfschunkserver.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, otherwise 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 information 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 mfschunkserver.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)