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instead of a separate --writecacheblocksize option.
writecache block_size is not technically a setting,
but it can borrow the option as a special case.
This fixes a problem in commit e6bb780d24, in which the
back compat handling for the old locking_type=4 was
incorrectly translated to mean the same thing as --readonly,
which prevented activation because activation uses an
exclusive vg lock. Previously, locking_type=4 allowed
activation.
If we see locking_type 4 in an old config, translate it to
the new combination of --readonly and --sysinit, which we
now define to mean the --readonly behavior with an exception
to allow activation.
The 'lvconvert LV' command def has caused multiple problems
for command matching because it matches the required options
of any lvconvert command. Any lvconvert with incorrect options
ends up matching 'lvconvert LV', which then produces an error
about incorrect options being used for 'lvconvert LV'. This
prevents suggestions from nearest-command partial command matches.
Add a special case for 'lvconvert LV' so that it won't be used
as a partial match for a command that has options specified.
Native disk scanning is now both reduced and
async/parallel, which makes it comparable in
performance (and often faster) when compared
to lvm using lvmetad.
Autoactivation now uses local temp files to record
online PVs, and no longer requires lvmetad.
There should be no apparent command-level change
in behavior.
It's no longer needed. Clustered VGs are now handled in
the same way as foreign VGs, and as shared VGs that
can't be accessed:
- A command processing all VGs sees a clustered VG,
prints a message ("Skipping clustered VG foo."),
skips it, and does not fail.
- A command where the clustered VG is explicitly
named on the command line, prints a message and fails.
"Cannot access clustered VG foo, see lvmlockd(8)."
The option is listed in the set of ignored options for
the commands that previously accepted it. (Removing it
entirely would cause commands/scripts to fail if they
set it.)
The last commit related to this was incomplete:
"Implement lock-override options without locking type"
This is further reworking and reduction of the locking.[ch]
layer which handled all clustering, but is now only used
for file locking. The "locking types" that this layer
implemented were removed previously, leaving only the
standard file locking. (Some cluster-related artifacts
remain to be cleared out later.)
Command options to override or modify locking behavior
are reimplemented here without using the locking types.
Also, deprecated locking_type values are recognized,
and implemented as if one of the equivalent override
options was set.
Options that override file locking are:
. --nolocking disables all file locking.
. --readonly grants read lock requests without actually
taking a file lock, and refuses write lock requests.
. --ignorelockingfailure tries to set up file locks and
uses them normally if possible. When not possible, it
behaves like --readonly, but allows activation.
. --sysinit is the same as ignorelockingfailure.
. global/metadata_read_only acquires actual read file
locks, and refuses write lock requests.
(Some of these options could probably be deprecated
because they were added as workarounds to various
locking_type behaviors that are now deprecated.)
The locking_type setting now has one valid value: 1 which
refers to standard file locking. Configs that contain
deprecated values are recognized and still work in
largely the same way:
. 0 disabled all locking, now implemented like --nolocking
is set. Allow the nolocking option in all commands.
. 1 is the normal file locking setting and is unchanged.
. 2 was for external locking which was not used, and
reverts to normal file locking.
. 3 was for cluster/clvm. This reverts to normal file
locking, and prints messages about lvmlockd.
. 4 was equivalent to readonly, now implemented like
--readonly is set.
. 5 disabled all locking, now implemented like
--nolocking is set.
Fixing regresion on argument acceptance where any lv can be passed
with paramaterless lvconvert which is meant to figure out needed
operation - i.e. wait for mirror synchronization.
User has no other 'effective' method to wait for mirror getting in-sync.
When certain cmd def RULE's fail, the error messages can
sometimes be confusing. This expands the error messages
to help clarify why the rule failed, especially in cases
where options are used incorrectly.
Enable handling of --poolmetadataspare so if user can prevent
creation of _pmspare volume during --repair operation (just
like during actual lvcreate or lvconvert) for pool volumes.
Add an independent command definition for "vgchange --locktype",
and split the implementation out of the set of common metadata
changes. It is unlike normal metadata changes, and can only
be run by itself. (Changing the lock type is similar in
principle to changing the VG name or the VG system ID; it
effects the ability of any host to see or access the VG.)
At some point this command lost the ability to forcibly change
the lock type of a shared VG to "none" (making it a local VG).
This can be necessary to repair shared VGs (e.g. recovery steps
that occur in vg_read are disabled for shared VGs because
they are not locked properly, or recovering sanlock locks
when the PV holding them is lost.)
"vgchange --locktype none --lockopt force VG" is used as the
method of forcing the shared VG to become local so that it
can be repaired.
Fill in some gaps where old versions of lvm allowed
--poll and --monitor in combination with other operations,
but those combinations had been lost since the cmd def work.
(The new cmd def code also added some combinations that
had been missed by the old code.)
Changes:
lvchange --activate: add poll and monitor options, and
add calls to them in implementation.
lvchange --refresh: add monitor option (poll already there),
and call to monitor in implementation.
lvchange <metadata ops>: add poll and monitor options, and
add calls to them in implementation.
vgchange <metadata ops>: add poll option (call to poll
already in implementation).
vgchange --refresh: remove monitor option (not used by code)
lvchange --persistent y: add poll and monitor options, and
add calls to them, and to activate
in the implementation. (Making it
match the main lvchange metadata
command.)
Summary of current usage:
lvchange --activate: monitor, poll
vgchange --activate: monitor, poll
lvchange --refresh: monitor, poll
vgchange --refresh: poll
lvchange --monitor: ok
lvchange --poll: ok
lvchange --monitor --poll: ok
vgchange --monitor: ok
vgchange --poll: ok
vgchange --monitor --poll: ok
lvchange <metadata ops>: monitor, poll
vgchange <metadata ops>: poll
These days --partial is only used with activation in
lvchange/vgchange. It probably had another meaning
at some point in history which is no longer used,
so ignore it in those cases.
When included in the OO list, the option is advertised in
help/man output, implying it is meaningful to the command,
when in fact the command never uses it.
The IO list means the option won't cause an error if it's
used, but is not displayed as an valid option for the command.
If the option is not included in either OO or IO lists,
using the option would cause a command error, which would cause
problems for anyone is using the option for historical reasons.
Fix a regression introduced by new command line processing
(see starting commit 1e2420bca8)
causing activation to be rejected in combination with setting
persistent minor device numbers.
Resolves: rhbz1437611
Fixes command defs related to creating a new thin pool and
then a new thin lv in the new pool.
1. lvcreate --size --virtualsize --thinpool
Needs a cmd def, it was missing.
The def is unique by the three required
options: size, virtualsize and thinpool.
2. lvcreate --size --virtualsize --thinpool VG
Needs a cmd def, it was missing.
The def is unique by the three required
options: size, virtualsize and thinpool,
and one required positional arg: VG.
3. lvcreate --thin --virtualsize --size LV_new|VG
This existing def should not accept an optional
--type thin, which if used makes it indistinct
from another def.
4. lvcreate --size --virtualsize VG
This existing def should not accept an optional
--type thin or --thin, which if used makes it
indistinct from other defs (e.g. 3)
This reverts commit 642d682d8d.
Using the thinpool option with this cmd def makes it
indistinct from other cmd defs where thinpool is a
required option.
lvcreate --thinpool POOL1 -L 100M --virtualsize 100M snapper_thinp
https://bugzilla.redhat.com/1434027
(The general rule is that a command is accepted if it is unambiguous.
The combination -L -V --thinpool uniquely identifies the operation.)
Systematically outline every combination of:
--type striped, --type mirror, --type raid, --mirrors, --stripes
and make sure each is assigned to one specific cmd def.
This revealed that a new command def is needed for
lvcreate that uses both --mirrors and --stripes
but no --type option.
The use of LVCREATE_RAID shortcut for an option set
resulted in mirrors/stripes being included in optional
opts set when they were already in the required list.
As was recently done with relative signes for sizes/extents,
limit the signs used with the mirrors option, e.g.
lvcreate --mirrors now does not accept or advertise an
optional minus sign with the value. lvconvert --mirrors
accepts +|-.
The LVCONVERT_RAID shortcut for including options ended
up including mirrors/stripes as optional opts in defs where
they were already required, or in defs where they would
not be used. Remove the option set and specify in each
case only the options wanted.
OO_LVCREATE_CACHE accepts --cachemetadataformat.
Support new option --cachemetadataformat auto|1|2 for caching.
Word 'auto' can be also be given as '0'.
