nilfs_cleanerd

Langue: en

Autres versions - même langue

Version: May 2008 (ubuntu - 25/10/10)

Section: 8 (Commandes administrateur)

Sommaire

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).