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dm_snprintf() returns upon success the number of characters printed
(excluding the null byte used to end output to strings).
So add extra byte to preserve \0.
This fixes regression when displaying more then a single lv name.
Make it possible to define format for time that is displayed.
The way the format is defined is equal to the way that is used
for strftime function, although not all formatting options as
used in strftime are available for LVM2 - the set is restricted
(e.g. we do not allow newline to be printed). The lvm.conf
comments contain the whole list that LVM2 accepts for time format
together with brief description (copied from strftime man page).
For example:
(defaults used - the format is the same as used before this patch)
$ lvs -o+time vg/lvol0 vg/lvol1
LV VG Attr LSize Time
lvol0 vg -wi-a----- 4.00m 2015-06-25 16:18:34 +0200
lvol1 vg -wi-a----- 4.00m 2015-06-29 09:17:11 +0200
(using 'time_format = "@%s"' in lvm.conf - number of seconds
since the Epoch)
$ lvs -o+time vg/lvol0 vg/lvol1
LV VG Attr LSize Time
lvol0 vg -wi-a----- 4.00m @1435241914
lvol1 vg -wi-a----- 4.00m @1435562231
Commit e587b0677b broke the build on
systems where /bin/sh is Dash, for example.
Origin patch by Ferenc Wágner <wferi@niif.hu> changed later to
avoid using shell call, so makefile add 'server' target when
one of metad or polld daemon is requested.
The lvmconfig --type full is actually a combination of --type current
and --type missing together with --mergedconfig options used.
The overall outcome is a configuration tree with settings as LVM sees
it when it looks for the values - that means, if the setting is defined
in some config source (lvm.conf, --config, lvmlocal.conf or any profile
that is used), the setting is used. Otherwise, if the setting is not
defined in any part of the config cascade, the defaults are used.
The --type full displays exactly this final tree with all the values
defined, either coming from configuration tree or from defaults.
Synchronize with udev logic before reusing device as snapshot.
This patch tries to fix the problem with udev, where we manage
to 'active' LV for clearing, then we deactivate such device and
active again as member of 'origin&snapshot' tree all in 1 step.
There needs to be a sync point where udev has time to remove all links,
otherwise we race with scans and we may end-up with mysterious 'free'
links in the system pointing to wrong dm names.
This patch tries to fix failing topology cluster tests..
We shouldn't be adding spaces by default in output as that
may be be used already in scripts and especially for the eval
in shell scripts where spaces are not allowed between key
and value!
Add --withspaces option to lvmconfig for pretty output with
more space in for readability.
Use of display_lvname() in plain log_debug() may accumulate memory in
command context mempool. Use instead small ringbuffer which allows to
store cuple (10 ATM) names so upto 10 full names can be used at one.
We are not keeping full VG/LV names as it may eventually consume larger
amount of RAM resouces if vgname is longer and lots of LVs are in use.
Note: if there would be ever needed for displaing more names at once,
the limit should be raised (e.g. log_debug() would need to print more
then 10 LVs on a single line).
With thin-pool kernel target module 1.13 it's now support usage of
external origin with sizes which are not 'alligned' with chunk size
of thin-pool.
Enable lvm2 support for this and also fix reporting of data_percent
usage for case sizes are not alligned.
Note that this is just a quick fix and it needs more robust fix to
encompass any combination, not just the (old) snapshot one!
This started with this report:
https://bugzilla.redhat.com/show_bug.cgi?id=1219222
If we have devices/ignore_suspended_devices=1 set based on which we
filter out suspended devices as unusable (or if we ignore suspended
devices by force, e.g. during lvconvert called from dmeventd) and
when we have snapshot and snapshot origin devices in the play, we
need to look at their components unerneath (*-real and *-cow) to
check if they're not suspended. If they are, the snapshot/snapshot
origin is not usable as well and hence it needs to be filtered out
by filter-usable.c code which does suspended device filtering.
Not going into much details here, more details are in the bugzilla
mentioned above. However, this is a quick fix since snapshot
and this exact situation is not the only one. So this is
something that needs to be revisited and fixed properly
with full dm tree and checking the whole stack to state
whether the device at the very top is usable or not.
This patch fixes segfault which was caused by incorrectly marking some
settings CFG_DEFAULT_COMMENTED instead of CFG_DEFAULT_UNDEFINED - the
ones which have NULL default value, hence they're really undefined.
A regression caused by a98ceceb1d.
For example:
$ lvmconfig log/file
file="/a"
Before this patch:
$ lvmconfig --type diff
Segmentation fault (core dumped)
With this patch applied:
$ lvmconfig --type diff
log {
file="/a"
}
The same applies for these settings:
log/activate_file
global/library_dir
global/system_id_file
<disk_area>/disk_area_id
There were also other settings with NULL default value and marked as
CFG_DEFAULT_COMMENTED instead of CFG_DEFAULT_UNDEFINED, but they were
cfg_array config settings where the NULL value was not causing segfault
(NULL == empty array).
Commit b00711e312 improperly
convert _area_missing() replacment and moved check for
AREA_PV seg_type() into same if() section.
Signed-off-by: Lidong Zhong <lzhong@suse.com>
If lvmetad is not used, we generate lvm2-activation{-early,-net}.service
systemd services to activate any VGs found on the system. So far we used
--sysinit during this activation as polling was still forked off of the
lvm activation command.
This has changed with lvmpolld - we have proper lvmpolld systemd
service now (activated via its socket unit). As such, we don't need
to use --sysinit anymore during activation in systemd environment
as polling was the only barrier to remove the need for --sysinit.
as of now lvmpolld works as client utility for
querying running instance of lvmpolld server
on metadata, state, etc.
Currently the only request implemented is the '--dump'.
It prints out full lvmpolld state (mimics lvmdump -p command).
Configure provides proper settings for
use_lvmetad and use_lvmpolld conf setttings.
When the build of polld & lvmetad, these settings
are enabled by default unless explicitelly disabled
with --disable-use-lvmetad/--disable-use-lvmpolld.
Use 64bit arithmentic for PV size calculation (Coverity).
Also remove sector shift for compared PV size, since all
values are already held in sectors.
This fixes validatio of PV size when restoring PV
from vg metadata backup file.
Reinstate config settings matching the last release until every
case where the generator produces different output has been reviewed
and fresh decisions made about which defaults to expose as protection
against changes in newer releases. We should be trying to reduce, not
increase, this number.
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
