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This makes it easier to check against the fields (following patches for
report selection) and check whether size units are allowed or not
with the field value.
Use NAME_LEN constant to simplify creation of device name.
Since the max size should be already tested in validation,
throw INTERNAL_ERROR if the size of vg/lv is bigger then NAME_LEN.
Let's use the size of origin as the real base for percenta calculation,
and 'silenly' add needed metadata space for snapshot.
So now command 'lvcreate -s -l100%ORIGIN vg/lv' should always create a
snapshot to handle full device overwrite.
Expresing -lXX%LV is not valid for snapshot, but error message for
snapshost case was not complete and missed %ORIGIN.
Also document correct settings for in manpage properly where
it missed %PVS.
While polling for snapshot, detect first the snapshot still
exits. It's valid to have multiple polling threads watching
for the same thing and just 1 can 'win' the finish part.
All others should nicely 'fail'.
If the we are polling an LV due to some sort of conversion and it
becomes inactive, a rather worrisome message is produced, e.g.:
" ABORTING: Mirror percentage check failed."
We can cleanly exit if we do a simple check to see if the LV is
active before performing the check. This eliminates the scary
message.
Internal reporting function cannot handle NULL reporting value,
so ensure there is at least dummy label.
So move dummy_lable from tools/reporter.c and use it for all
report_object() calls in lib/report/report.c.
(Fixes RHBZ 1108394)
Simlify lvm_report_object initialization.
And use ifdefs there, not exposing it in the tool code itself.
Later in the future, we should probably make the PIDFILE and
daemon checking code available also in case the daemon itself
is not built.
If the user supplies a '--yes' argument, then don't bother them with
a question to confirm whether to change the cluster attribute (even
if clvmd isn't running).
If clvmd is not running or the locking type is not clustered and someone
attempts to set the cluster attribute on a volume group, prompt them to
see if they are sure. (Only prompt for one though. If neither are true,
simply ask them once.)
Warn when --udevcookie/DM_UDEV_COOKIE is used with 'dmsetup remove --force'.
When command is doing multiple ioctl operations on a single device,
it may invoke udev activity, that is colliding with further ioctl commands.
The result of such operation becomes unpredictable.
Use of --retry could partially help...
LVM has restricter character set that is allowed for VG-LV names
and the dm names constructed do not contain any blacklisted characters
that would require name mangling.
Also, when any other device-mapper device is scanned that could
possibly contain such blacklisted characters, we reference the
device by its major:minor instead of dm name (e.g. _device_is_usable fn).
Warn user before converting volume to different type.
WARNING: Converting vg/lvol0 logical volume to pool's meta/data volume.
THIS WILL DESTROY CONTENT OF LOGICAL VOLUME (filesystem etc.)
Since the content of volume is lost we have to query user to confirm
such operation. If user is 100% sure, he may use '--yes' to avoid prompts.
The dumpconfig now understands --commandprofile/--profile/--metadataprofile
The --commandprofile and --profile functionality is almost the same
with only one difference and that is that the --profile is just used
for dumping the content, it's not applied for the command itself
(while the --commandprofile profile is applied like it is done for
any other LVM command).
We also allow --metadataprofile for dumpconfig - dumpconfig *does not*
touch VG/LV and metadata in any way so it's OK to use it here (just for
dumping the content, checking the profile validity etc.).
The validity of the profile can be checked with:
dumpconfig --commandprofile/--profile/--metadataprofile --validate
...depending on the profile type.
Also, mention --config in the dumpconfig help string so users know
that dumpconfig handles this too (it did even before, but it was not
documented in the help string).
- When defining configuration source, the code now uses separate
CONFIG_PROFILE_COMMAND and CONFIG_PROFILE_METADATA markers
(before, it was just CONFIG_PROFILE that did not make the
difference between the two). This helps when checking the
configuration if it contains correct set of options which
are all in either command-profilable or metadata-profilable
group without mixing these groups together - so it's a firm
distinction. The "command profile" can't contain
"metadata profile" and vice versa! This is strictly checked
and if the settings are mixed, such profile is rejected and
it's not used. So in the end, the CONFIG_PROFILE_COMMAND
set of options and CONFIG_PROFILE_METADATA are mutually exclusive
sets.
- Marking configuration with one or the other marker will also
determine the way these configuration sources are positioned
in the configuration cascade which is now:
CONFIG_STRING -> CONFIG_PROFILE_COMMAND -> CONFIG_PROFILE_METADATA -> CONFIG_FILE/CONFIG_MERGED_FILES
- Marking configuration with one or the other marker will also make
it possible to issue a command context refresh (will be probably
a part of a future patch) if needed for settings in global profile
set. For settings in metadata profile set this is impossible since
we can't refresh cmd context in the middle of reading VG/LV metadata
and for each VG/LV separately because each VG/LV can have a different
metadata profile assinged and it's not possible to change these
settings at this level.
- When command profile is incorrect, it's rejected *and also* the
command exits immediately - the profile *must* be correct for the
command that was run with a profile to be executed. Before this
patch, when the profile was found incorrect, there was just the
warning message and the command continued without profile applied.
But it's more correct to exit immediately in this case.
- When metadata profile is incorrect, we reject it during command
runtime (as we know the profile name from metadata and not early
from command line as it is in case of command profiles) and we
*do continue* with the command as we're in the middle of operation.
Also, the metadata profile is applied directly and on the fly on
find_config_tree_* fn call and even if the metadata profile is
found incorrect, we still need to return the non-profiled value
as found in the other configuration provided or default value.
To exit immediately even in this case, we'd need to refactor
existing find_config_tree_* fns so they can return error. Currently,
these fns return only config values (which end up with default
values in the end if the config is not found).
- To check the profile validity before use to be sure it's correct,
one can use :
lvm dumpconfig --commandprofile/--metadataprofile ProfileName --validate
(the --commandprofile/--metadataprofile for dumpconfig will come
as part of the subsequent patch)
- This patch also adds a reference to --commandprofile and
--metadataprofile in the cmd help string (which was missing before
for the --profile for some commands). We do not mention --profile
now as people should use --commandprofile or --metadataprofile
directly. However, the --profile is still supported for backward
compatibility and it's translated as:
--profile == --metadataprofile for lvcreate, vgcreate, lvchange and vgchange
(as these commands are able to attach profile to metadata)
--profile == --commandprofile for all the other commands
(--metadataprofile is not allowed there as it makes no sense)
- This patch also contains some cleanups to make the code handling
the profiles more readable...
The dumpconfig reuses existing config_def_check results in case
the check is done during general lvm command context initialization
(when enabled by config/checks=1) so dumpconfig does not need to run
the same check again during its execution, hence saving some time.
However, we don't check for differences from defaults during general
lvm command initialization as it's useless at that time. It makes
sense only in case when such a check is directly requested (like in
the case of lvm dumpconfig --type diff). We need to take care that
the reused information was already produced with this "diff" checking
before and if not, we need to force the check so the check status also
gathers the new "diff" info now.
Also, do not do diff checking for any other dumpconfig command that
is run after dumpconfig --type diff.
When cmd refresh is called, we need to move any already loaded profiles
to profiles_to_load list which will cause their reload on subsequent
use. In addition to that, we need to take into account any change
in config/profile configuration setting on cmd context refresh
since this setting could be overriden with --config.
Also, when running commands in the shell, we need to remove the
global profile used from the configuration cascade so the profile
is not incorrectly reused next time when the --profile option is
not specified anymore for the next command in the shell.
This bug only affected profile specified by --profile cmd line
arg, not profiles referenced from LVM metadata.
Before, the cft_check_handle used to direct configuration checking
was part of cmd_context. It's better to attach this as part of the
exact config tree against which the check is done. This patch moves
the cft_check_handle out of cmd_context and it attaches it to the
config tree directly as dm_config_tree->custom->config_source->check_handle.
This change makes it easier to track the config tree check results
and provides less space for bugs as the results are directly attached
to the tree and we don't need to be cautious whether the global value
is correct or not (and whether it needs reinitialization) as it was
in the case when the cft_check_handle was part of cmd_context.
Share DM_REPORT_FIELD_RESERVED_NAME_{HELP,HELP_ALT} between libdm and
any libdm user to handle reserved field names, in this case the virtual
field name to show help instead of failing on unrecognized field.
The libdm user also needs to check the field name so it can fire
proper code in this case (cleanup, exit etc.).
When showing ACTIVE status for snapshot's origin,
avoid testing all its snapshot - it's not useful
to tell user origin is inactivate, while it's clearly
available and running - just one of its snapshot leg
is invalid...
While the 'raid1/10' segment types were being handled inadvertently
by '_move_mirrors()', the parity RAIDs were not being properly checked
to ensure that the user had specified all necessary PVs when moving
them. Thus, internal errors were being triggered when only part of
a RAID LV was moved to the new VG. I've added a new function,
'_move_raid()', which properly checks over any affected RAID LVs and
ensures that all the necessary PVs are being moved.
Config variables that are processed during setup prior to calling into
particular tools must not be accessed directly afterwards in case the
values already got overridden.
_process_config() already used the tests I'm removing here to call
lvmetad_set_active() and set up lvmetad_used().
There were two bugs before when using pvcreate --restorefile together
with data alignment and its offset specified:
- the --dataalignment was always ignored due to missing braces in the
code when validating the divisibility of supplied --dataalignment
argument with pe_start which we're just restoring:
if (pp->rp.pe_start % pp->data_alignment)
log_warn("WARNING: Ignoring data alignment %" PRIu64
" incompatible with --restorefile value (%"
PRIu64").", pp->data_alignment, pp->rp.pe_start);
pp->data_alignment = 0
The pp->data_alignment should be zeroed only if the pe_start is not
divisible with data_alignment.
- the check for compatibility of restored pe_start was incorrect too
since it did not properly count with the dataalignmentoffset that
could be supplied together with dataalignment
The proper formula is:
X * dataalignment + dataalignmentoffset == pe_start
So it should be:
if ((pp->rp.pe_start % pp->data_alignment) != pp->data_alignment_offset) {
...ignore supplied dataalignment and dataalignment offset...
}
