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This patch adds supporting code for handling deprecated settings.
Deprecated settings are not displayed by default in lvmconfig output
(except for --type current and --type diff). There's a new
"--showdeprecated" lvmconfig option to display them if needed.
Also, when using lvmconfig --withcomments, the comments with info
about deprecation are displayed for deprecated settings and with
lvmconfig --withversions, the version in which the setting was
deprecated is displayed in addition to the version of introduction.
If using --atversion with a version that is lower than the one
in which the setting was deprecated, the setting is then considered
as not deprecated (simply because at that version it was not
deprecated).
For example:
$ lvmconfig --type default activation
activation {
...
raid_region_size=512
...
}
$ lvmconfig --type default activation --showdeprecated
activation {
...
mirror_region_size=512
raid_region_size=512
...
}
$ lvmconfig --type default activation --showdeprecated --withversions
activation {
...
# Available since version 1.0.0.
# Deprecated since version 2.2.99.
mirror_region_size=512
# Available since version 2.2.99.
raid_region_size=512
...
}
$ lvmconfig --type default activation --showdeprecated --withcomments
activation {
...
# Configuration option activation/mirror_region_size.
# This has been replaced by the activation/raid_region_size
# setting.
# Size (in KB) of each copy operation when mirroring.
# This configuration option is deprecated.
mirror_region_size=512
# Configuration option activation/raid_region_size.
# Size in KiB of each raid or mirror synchronization region.
# For raid or mirror segment types, this is the amount of
# data that is copied at once when initializing, or moved
# at once by pvmove.
raid_region_size=512
...
}
$ lvmconfig --type default activation --withcomments --atversion 2.2.98
activation {
...
# Configuration option activation/mirror_region_size.
# Size (in KB) of each copy operation when mirroring.
mirror_region_size=512
...
}
These settings are in the "unsupported" group:
devices/loopfiles
log/activate_file
metadata/disk_areas (section)
metadata/disk_areas/<disk_area> (section)
metadata/disk_areas/<disk_area>/size
metadata/disk_areas/<disk_area>/id
These settings are in the "advanced" group:
devices/dir
devices/scan
devices/types
global/proc
activation/missing_stripe_filler
activation/mlock_filter
metadata/pvmetadatacopies
metadata/pvmetadataignore
metadata/stripesize
metadata/dirs
Also, this patch causes the --ignoreunsupported and --ignoreadvanced
switches to be honoured for all config types (lvmconfig --type).
By default, the --type current and --type diff display unsupported
settings, the other types ignore them - this patch also introduces
--showunsupported switch for all these other types to display even
unsupported settings in their output if needed.
lvmconfig --type list displays plain list of configuration settings.
Some of the existing decorations can be used (--withsummary and
--withversions) as well as existing options/switches (--ignoreadvanced,
--ignoreunsupported, --ignorelocal, --atversion).
For example (displaying only "config" section so the list is not long):
$lvmconfig --type list config
config/checks
config/abort_on_errors
config/profile_dir
$ lvmconfig --type list --withsummary config
config/checks - If enabled, any LVM configuration mismatch is reported.
config/abort_on_errors - Abort the LVM process if a configuration mismatch is found.
config/profile_dir - Directory where LVM looks for configuration profiles.
$ lvmconfig -l config
config/checks - If enabled, any LVM configuration mismatch is reported.
config/abort_on_errors - Abort the LVM process if a configuration mismatch is found.
config/profile_dir - Directory where LVM looks for configuration profiles.
$ lvmconfig --type list --withsummary --withversions config
config/checks - If enabled, any LVM configuration mismatch is reported. [2.2.99]
config/abort_on_errors - Abort the LVM process if a configuration mismatch is found. [2.2.99]
config/profile_dir - Directory where LVM looks for configuration profiles. [2.2.99]
Example with --atversion (displaying global section):
$ lvmconfig --type list global
global/umask
global/test
global/units
global/si_unit_consistency
global/suffix
global/activation
global/fallback_to_lvm1
global/format
global/format_libraries
global/segment_libraries
global/proc
global/etc
global/locking_type
global/wait_for_locks
global/fallback_to_clustered_locking
global/fallback_to_local_locking
global/locking_dir
global/prioritise_write_locks
global/library_dir
global/locking_library
global/abort_on_internal_errors
global/detect_internal_vg_cache_corruption
global/metadata_read_only
global/mirror_segtype_default
global/raid10_segtype_default
global/sparse_segtype_default
global/lvdisplay_shows_full_device_path
global/use_lvmetad
global/thin_check_executable
global/thin_dump_executable
global/thin_repair_executable
global/thin_check_options
global/thin_repair_options
global/thin_disabled_features
global/cache_check_executable
global/cache_dump_executable
global/cache_repair_executable
global/cache_check_options
global/cache_repair_options
global/system_id_source
global/system_id_file
$ lvmconfig --type list global --atversion 2.2.50
global/umask
global/test
global/units
global/suffix
global/activation
global/fallback_to_lvm1
global/format
global/format_libraries
global/segment_libraries
global/proc
global/locking_type
global/wait_for_locks
global/fallback_to_clustered_locking
global/fallback_to_local_locking
global/locking_dir
global/library_dir
global/locking_library
'lvm dumpconfig' now does a lot more than just dumping configuration
information and is no longer only a support tool. Users now need
to run it to find out about configuration information that has been
removed from the lvm.conf man page so we need to promote this to full
command line status as 'lvmconfig'. Also accept 'lvm config' and mention
it in the usage information of lvmconf (which should also get merged in
eventually).
