nilfs_cleanerd (5) - Linux Manuals

nilfs_cleanerd: nilfs_cleanerd(8) configuration file

NAME

nilfs_cleanerd.conf - nilfs_cleanerd(8) configuration file

DESCRIPTION

The nilfs_cleanerd.conf file is the configuration file for the nilfs_cleanerd(8) which reclaims disk space of the NILFS2 filesystem. This file specifies the parameters related to garbage collection (GC) and behaviour of the daemon program.

The file contains keyword argument pairs or keyword-only directives, one per line. Lines starting with '#' are interpreted as comments. The comment lines and empty lines are ignored.

PARAMETERS

The possible keywords and their meanings are as follows (keywords and arguments are both case-sensitive):

protection_period

Specify the period during which each checkpoint is protected from the garbage collector (in seconds). NILFS2 GC never deletes checkpoints and their blocks whose duration time is less than the value. The default value is 3600, meaning one hour.

selection_policy

Specify the GC policy. At present, only the `timestamp' policy, which reclaims segments in order from oldest to newest, is support.

nsegments_per_clean

Specify the number of segments reclaimed by a single cleaning step. The default value is 2.

cleaning_interval

Specify the cleaning interval in seconds. The default value is 5.

retry_interval

Specify retry interval in seconds. This value provides the retry interval of GC in case of resource shortages. The default value is 60.

use_mmap

Specify whether to use mmap(2) for reading segments. At present, this option is enabled if supported regardless of this directive.

log_priority

Gives the verbosity level that is used when logging messages from nilfs_cleanerd(8). The possible values are: emerg, alert, crit, err, warning, notice, info, and debug. The default is info.

FILES

/etc/nilfs_cleanerd.conf

Configuration file for nilfs_cleanerd(8).