Section: Maintenance Commands (8)Updated: May 2008Local indexUp
NAME
nilfs_cleanerd - NILFS2 garbage collector
SYNOPSIS
nilfs_cleanerd
[options] device [directory]
DESCRIPTION
nilfs_cleanerd
is a system daemon which reclaims disk space of a NILFS2 file system
found in device.
The optional directory argument specifies the mount point where
the daemon operates. It must be an r/w-mount.
This program can be invoked either automatically by
mount.nilfs2(8) or manually by an administrator. However,
users are recommended to invoke nilfs_cleanerd through
mount.nilfs2(8) or mount(8) and shutdown it through
umount.nilfs2(8) or umount(8) in order to avoid state
inconsistencies among administration tools.
OPTIONS
-c
Specify configuration file.
-h
Display help message and exit.
-n
invoke cleanerd without forking process. This option is intended for
internal use from mount.nilfs2(8).
-p
Override protection period with the specified number of seconds.
SIGNALS
nilfs_cleanerd
reacts to a set of signals. You may send a signal to
nilfs_cleanerd using the PID shown by the mount command
(or in /etc/mtab):
# mount -t nilfs2
/dev/sdb1 on /nilfs type nilfs2 (rw,gcpid=PID)
# kill -SIGNALPID
SIGHUP
This lets nilfs_cleanerd perform a re-initialization. The
configuration file (default is /etc/nilfs_cleanerd.conf) will be
reread.
SIGTERM
The nilfs_cleanerd will exit cleanly.
SIGUSR1, SIGUSR2
Reserved for future use. These let nilfs_cleanerd die at
present.
FILES
/etc/nilfs_cleanerd.conf
Configuration file for nilfs_cleanerd.
See nilfs_cleanerd.conf(5) for details.