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Add these for dmeventd systemd unit (dm-event.service):
Before: shutdown.target
Conflicts: shutdown.target
This will cause the dmeventd to be properly stopped at shutdown (after
all the dmeventd clients unregistered their devices from monitoring)
with dm-event.service's stop action (there's no direct action defined
for the "stop" so systemd sends SIGTERM instead).
Before, we let dmeventd to get killed only as part of the very last
SIGTERM/SIGKILL for all the remaining processes late in the shutdown
sequence so we may have missed some logs if dmeventd encountered an
error during its shutdown (logging facilities are already off at this
late time in shutdown sequence).
Ref: https://www.redhat.com/archives/lvm-devel/2017-October/msg00000.html
There's nothing special about /boot other than it's used during boot.
But when blkdeactivate is called either on all devices or including a
device where the /boot is on top, we should also include this mount
point when doing unmount before deactivation of supported devices.
The new blkdeactivate -r|mdraidoption wait causes blkdeactivate to wait
for any resync/recovery/reshape that is currently in progress before
deactivating the device.
If this option is used, blkdeactivate calls mdadm -W|--wait before
mdadm -S|--stop.
Revert dc50f2f4a0.
We're canonicalizing/escaping the names here and we're reusing the
variable name so the code doesn't need to use extra variables and
further assignments that may confuse us. Let's keep the code simple.
The
local name=(...$name)
is not the same as
local name
name=(...$name)
(I know various code-checking tools fuss about this and recommend
the 2nd way, but let's ignore those tools' nitpicking here please.)
There was a typo in blkdeactivate --dmoption/--lvmoption/mpathoption,
it had missing "s" at the end and it was not recognized properly, only
short names for the options (-d/-l/-m).
Drop 'DMEVENT' make variable and use BUILD_DMEVENTD like with other daemons.
NOTE: by default we do not build dmeventd - maybe time to change
as lot of build targets basically do need dmeventd...
Switch to use SYSTEMD_LIBS and avoid linking systemd library with
every linked tool when dbus notification are enabled.
(TODO add missing testing for lib presence)
Commit 1fe4f80e45 in current version
introduced regression for a terminal user, as he could not enter 'n'
as answer. Add missing break for this case (No whats_new).
When 'fsadm' was running without terminal (i.e. pipe), it's been
automatically working like in '--yes'.
Detect terminal and only accept empty "" input in this mode.
Add more validation to catch mainly renamed devices, where
filesystem utils are not able to handle devices properly,
as they are not addressed by major:minor by rather via some
symbolic path names which can change over time via rename operation.
Since we add more validation to 'detect_mounted' function make sure
we always use it even with 'resize' action, so numerous validations
are not skipped.
We have to unset the LoadState variable from previous use when we check
for systemd unit state. We use this variable to check if systemd services
are loaded or not and if it is loaded, we issue systemctl commands to
enable/disable and start/stop the service. We don't issue these commands
if the unit is not loaded to avoid error messages which may confuse users.
The blkdeactivate script processes MD devices too so we should unmount
any mount point on top of an MD device if blkdeactivate -u|--umount is
called.
Diagnosed and reported by: Rick Warner <rick@microway.com>
See also https://bugzilla.redhat.com/show_bug.cgi?id=1410585.
If blkdeactivate finds out that the device on top of device stack
is already unmounted, it still proceeds with device stack deactivation
underneath now.
This situation can happen if blkdeactivate is started and the mount
point is unmounted in parallel by chance (so when blkdeactivate
gets the the actual umount call, the device is not mounted anymore).
Before, the blkdeactivate added such device to skip list which caused
all the stack underneath to be skipped too on deactivation. Now, we
proceed just as if blkdeactivate did the umount itself.
For example, in the example below, the vg-lvol0 is mounted on /mnt/test
when blkdeactivate is called, but it gets unmounted in parallel later
on when blkdeactivate gets to the actual umount call.
Before this patch (vg-lvol0 underneath not deactivated):
$ blkdeactivate -u
Deactivating block devices:
[UMOUNT]: unmounting vg-lvol0 (dm-2) mounted on /mnt/test... skipping
With this patch applied (vg-lvol0 underneath still deactivated):
$ blkdeactivate -u
Deactivating block devices:
[UMOUNT]: unmounting vg-lvol0 (dm-2) mounted on /mnt/test... already unmounted
[LVM]: deactivating Logical Volume vg/lvol0... done
We shouldn't be losing pvscans just because of the fact that the
underlying device (PV) appears and disappears quickly in the system,
otherwise lvmetad may not see the device if it appears again (or it may
still keep the device in cache even it's already gone).
The lsblk is just a nice helper here - it's not crucial for lvmdump so
do best effort here and use the most we can from current version of
lsblk that is installed on system. The lsblk -s option was added a bit
later after lsblk introduction and lsblk -O support even more later -
so if these are not available, use only pure lsblk output without any
extras.
Including major and minor numbers in pvs and lvs output when calling
lvmdump -a makes it a bit easier to match these items with possible
system log/journal.
blkdeactivate -m disablequeueing causes "multipathd disablequeueing maps"
call inside blkdeactivate script before deactivating devices. This
avoids a situation where blkdeactivate may wait for paths to appear if
multipath is set to queueing and there's a stack of other devices and/or
mount points on top of such multipath device.
See also https://bugzilla.redhat.com/show_bug.cgi?id=1344381.
Commit #5b3a4a9 caused the "name" variable to be cleared if
declaration and assignment is on two lines so put it back
so it's on one line for it to work again.
Don't use lvm_init() to create a full command context, which
does a lot of command setup (like connecting to daemons), which
is unnecessary for simply reading a value from lvm.conf.
Passing a NULL context arg to the lvm_config_ function is now
allowed, in which case lvm.conf is read without doing lvm
command setup.
With commit 2d5dc6512e the dbus server
no longer needs to utilize udev to know when to update its internal
state.
Signed-off-by: Tony Asleson <tasleson@redhat.com>
If we're using non-standard /dev layout so we can't get the dm-X name
easily, we can't also look at the /sys/blocl/dm-X/dev to get the major:minor
pair. Use "stat" in this case even though it triggers automounts
(but there's no better way for now).
The /proc/self/mountinfo is not bound to device names like /proc/mounts
and it uses major:minor pairs instead.
This fixes a situation in which a volume is mounted and then renamed
later on - that makes /proc/mounts unreliable when detecting mounted
volumes.
See also https://bugzilla.redhat.com/show_bug.cgi?id=1196910.
Correct name is lvm2-lvmdbusd.service not lvmdbusd.service.
This makes the bus-activation (auto-activation) work.
Signed-off-by: Vratislav Podzimek <vpodzime@redhat.com>
The lvm2-activation{-early,-net}.service systemd unit statuses were missing
in dump gathered by lvmdump -s. These are quite important when debugging
scenarios with systemd environment and where lvmetad is not used.
Make sure log/prefix is set to "" when getting the list of VG names.
We need this for the format to be correct so it's properly searched
through later on.
$ vgcreate vgA /dev/sda
Volume group "vgA" successfully created
$ dd if=/dev/sda of=/dev/sdb bs=1M
$ dd if=/dev/sda of=/dev/sdc bs=1M
(the new VG name is prefix of existing VG name)
$ vgimportclone -n vg /dev/sdb
(the new VG name is suffix of existing VG name)
$ vgimportclone -n gA /dev/sdc
Before this patch:
------------------
(we end up with "vg1" and "gA1" names with the "1" suffix which is not needed)
$ vgs -o vg_name
VG
gA1
vg1
vgA
With this patch applied:
------------------------
(we end up with "vg" and "gA" names as they're unique already and no extra suffix is added)
$ # vgs -o vg_name
VG
gA
vg
vgA
Of course, if the name supplied is not unique, the number is added correctly:
$ dd if=/dev/sda of=/dev/sdb bs=1M
$ vgimportclone -n vgA /dev/sdb
$ vgs -o vg_name
VG
vgA
vgA1
We can replace the expressions with awk/grep/cut/tr with --select now and
more suitable reporting options and modes. Also, we don't need to check
the temporary lvm.conf generated within vgimportclone script since we're
generating it ourselves now using lvmconfig, not using sed anymore like
it was before (so we can be pretty sure it's correct - we use lvmconfig
now even for generating the lvm.conf itself).
We want most of our units to be started before any local/remote mount
points are mounted - we used {local,remote}-fs.target for this purpose
before, but it was not 100% correct as there's even {local,remote}-fs-pre.target
special systemd unit reserved for this exact purpose.
See also man 7 systemd.special and "local-fs-pre.target"/"remote-fs-pre.target"
description.
