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 -SIGNAL PID
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.
AUTHOR
Koji Sato <koji@osrg.net>
AVAILABILITY
nilfs_cleanerd is part of the nilfs-utils package and available from
http://www.nilfs.org.
SEE ALSO
nilfs(8), mount.nilfs2(8), umount.nilfs2(8), nilfs_cleanerd.conf(5).