Man page - nilfs_cleanerd(8)

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Manual

NILFS_CLEANERD

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
SIGNALS
FILES
AUTHOR
AVAILABILITY
SEE ALSO

NAME

nilfs_cleanerd - NILFS2 garbage collector

SYNOPSIS

nilfs_cleanerd [ -hV ]

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.

nilfs_cleanerd displays its process ID (pid) to standard output when it started.

OPTIONS

-V , --version

Display version and exit.

-h , --help

Display help message and exit.

-c file , --conf = file

Specify configuration file.

-p interval , --protection-period = interval

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

AVAILABILITY

nilfs_cleanerd is part of the nilfs-utils package and available from https://nilfs.sourceforge.io.

SEE ALSO

nilfs (8), mount.nilfs2 (8), umount.nilfs2 (8), nilfs_cleanerd.conf (5).