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Commit Graph

1639 Commits

Author SHA1 Message Date
Tony Asleson
1bbf977577 lvmdbusd: Debug msg. improvements. 2019-10-30 10:38:40 -05:00
Tony Asleson
4dcb36aba4 lvmdbusd: Fix model inconsistency when LV loses interface
When a LV loses an interface it ends up getting removed and recreated.
This happens after the VGs have been processed and updated.  Thus when
this happens we need to re-check the VGs.
2019-10-30 10:38:40 -05:00
Tony Asleson
f56b21ae2c lvmdbusd: Bug fix for activate/deactivate
Prevent the daemon from stalling when it gets stuck on a y/n prompt.
2019-10-30 10:38:40 -05:00
Tony Asleson
5971da2c72 lvmdbusd: VDO Pool LV representation
VDO pool LVs are represented by a new dbus interface VgVdo.  Currently
the interface only has additional VDO properties, but when the
ability to support additional LV creation is added we can add a method
to the interface.
2019-10-30 10:38:40 -05:00
Tony Asleson
df2292020b lvmdbusd: Prevent running --nojson with VDO support 2019-10-30 10:38:40 -05:00
Tony Asleson
6204955347 lvmdbusd: Add VgVdo class & assoc. interface
When VDO support is available we will create VG object instances
which will allow the API user to create VDO pool LVs.
2019-10-30 10:38:40 -05:00
Tony Asleson
9d2ef05c5d lvmdbusd: Add cfg.vdo_support
Will be used to add vdo interfaces on demand.
2019-10-30 10:38:40 -05:00
Tony Asleson
bafe5d15b1 lvmdbusd: Add check for reserved name '_vdata'
Added for vdo support.
2019-10-30 10:38:40 -05:00
Tony Asleson
b0286fa127 lvmdbusd: Add d and D to type map for VolumeType
These were added for vdo integration.
2019-10-30 10:38:40 -05:00
Tony Asleson
1839702cb4 lvmdbusd: Remove use of tmp variables
We can use tuple expansion from the command handler functions
directly.
2019-10-30 10:38:40 -05:00
Tony Asleson
df38eb49ab lvmdbusd: Remove duplicate error handling code
vg, lv, pv code had the same function for handling command execution.
Move to utility function and abstract the difference.
2019-10-30 10:38:40 -05:00
Zdenek Kabelac
ebc9274be0 cmirrord: deamon links libdm
Correct included header files for this outdated tool since
it's linked with libdm, it need to use header files from this dir.
2019-10-04 17:31:55 +02:00
Heinz Mauelshagen
6f355c6736 dmeventd: avoid bail out preventing repair in raid plugin but keep message
Followup patch mentioned in previous commit fe577f84cbf6bd7be76b457c9d54d0e54e57f93d.

Problem:
  even though dead raid component devices are detected, the
  raid plugin is bailing out thus preventing a repair attempt.

Rational:
  in case of component device errors, the MD resynchronization
  thread runs in parallel with the thrown event being processed
  by the raid plugin.  The plugin retrieves the raid device status
  but that still reflects insync regions as 0 (when it should
  already be total regions) because the MD thread didn't update it yet.

Solution:
  Remove the insync regions check but keep the informal message
  "waiting for resynchronization"  and let lvconvert carry out its
  pre-repair checks and optionally carry out a repair attempt.

Related: https://bugzilla.redhat.com/show_bug.cgi?id=1751887
Related: https://bugzilla.redhat.com/show_bug.cgi?id=1560739
Related: https://bugzilla.redhat.com/show_bug.cgi?id=1468590
Related: https://bugzilla.redhat.com/show_bug.cgi?id=1654860
Related: https://bugzilla.redhat.com/show_bug.cgi?id=1729303
Related: https://bugzilla.redhat.com/show_bug.cgi?id=1741016
2019-09-20 17:53:20 +02:00
Heinz Mauelshagen
6fc46af8ec Revert "dmeventd: avoid bail out preventing repair in raid plugin"
This reverts commit ad560a286a.

The reverted patch also removed the warning which we realized we need
to keep as valuable process information (see related bugzilla below).

In a followup patch, we'll keep the message and avoid bailing out thus
always allowing lvconvert to try repairing if 'allocate' fault policy set.

Related: https://bugzilla.redhat.com/show_bug.cgi?id=1751887
2019-09-20 17:52:37 +02:00
David Teigland
6e1cf248d4 Revert "lvmlockd: use commonly used define NOTIFYDBUS_SUPPORT"
This reverts commit 71af650760.

It disabled sd_notify() which broke 'systemctl start lvmlockd'.
2019-09-16 11:44:42 -05:00
Vojtech Trefny
32a8865a27 Fix converting dbus.UInt types to string
With Python 3.8 converting these directly to string using str()
no longer works, we need to convert these to integer first.

On Python 3.8:

>>> str(dbus.Int64(1))
'dbus.Int64(1)'

On Python 3.7 (and older):
>>> str(dbus.UInt64(1))
'1'

This is probably related to removing __str__ function from method
from int (dbus.UInt is subclass of int) which happened in 3.8, see
https://docs.python.org/3.8/whatsnew/3.8.html

Signed-off-by: Vojtech Trefny <vtrefny@redhat.com>
2019-08-27 09:43:43 -05:00
Heinz Mauelshagen
ad560a286a dmeventd: avoid bail out preventing repair in raid plugin
Problem:
even though dead raid component devices are detected, the
raid plugin is bailing out thus preventing a repair attempt.

Rational:
in case of component device errors, the MD resynchronization
thread runs in parallel with the thrown event being processed
by the raid plugin.  The plugin retrieves the raid device status
but that still reflects insync regions as 0 (when it should
already be total regions) because the MD thread didn't update it yet.

Solution:
Remove the insync regions check and let lvconvert carry out its
pre-repair checks and optionally carry out a repair attempt.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1560739
Related:  https://bugzilla.redhat.com/show_bug.cgi?id=1468590
Related:  https://bugzilla.redhat.com/show_bug.cgi?id=1654860
Related:  https://bugzilla.redhat.com/show_bug.cgi?id=1729303
Related:  https://bugzilla.redhat.com/show_bug.cgi?id=1741016
2019-08-16 18:07:03 +02:00
David Teigland
81735b46d9 lvmlockd: fix snprintf warnings 2019-05-02 12:59:55 -05:00
Zdenek Kabelac
44cfa55843 libdaemon: use pselect to avoid condition checking race
To avoid tiny race on checking arrival of signal and entering select
(that can latter remain stuck as signal was already delivered) switch
to use  pselect().

If it would needed, we can eventually add extra code for older systems
without pselect(), but there are probably no such ancient systems in
use.
2019-04-16 12:18:34 +02:00
David Teigland
50800e33d5 lvextend: refresh shared LV without using select
Using select instead of normal args did not end
up being a help, so remove it.
2019-04-04 13:19:08 -05:00
David Teigland
27cfeb1d39 lvextend: refresh shared LV with vgname as arg
Update the previous commit to leave the vgname as
an arg instead of moving it into the select option,
(the compound select option rule is confusing the
dlm arg processing.)
2019-03-22 15:01:29 -05:00
David Teigland
86b96ede2a lvextend: refresh shared LV using select option
Using --select 'lvname=LV && vgname=VG' avoids the problem
of the lvchange exit code not distinguishing an actual error
result vs the VG or LV not existing.  (This is in case there
is an odd dlm/gfs2 setup where some nodes are running the dlm
but do not have access to the VG.)
2019-03-22 14:35:02 -05:00
David Teigland
85e68a8333 lvextend: refresh shared LV remotely using dlm/corosync
When lvextend extends an LV that is active with a shared
lock, use this as a signal that other hosts may also have
the LV active, with gfs2 mounted, and should have the LV
refreshed to reflect the new size.  Use the libdlmcontrol
run api, which uses dlm_controld/corosync to run an
lvchange --refresh command on other cluster nodes.
2019-03-21 12:38:20 -05:00
David Teigland
d369de8399 lvextend: allow on LV active with a shared lock
Detect when a shared lock exists, don't require the
normal exclusive lock, and allow the lvextend.
2019-03-21 12:38:20 -05:00
David Teigland
9b4926aaff warn about changes to an active lv with shared lock
When an LV is active with a shared lock, a command can be
run to change the LV with --lockopt skiplv (to override the
exclusive lock the command ordinarily requires which is not
compatible with the outstanding shared lock.)

In this case, other commands may have the LV active and may
need to refresh the LV, so print warning stating this.
2019-03-21 12:38:20 -05:00
Zdenek Kabelac
f3c52a515b vdo: enable dmeventd resize 2019-01-21 12:53:16 +01:00
Tony Asleson
0d142f6514 lvmdbusd: Use UUID instead of name for VG rename
Use the UUID to specify the VG to rename instead of the name as this
approach works when we have duplicate VG names.
2019-01-16 16:29:05 -06:00
Tony Asleson
f43b7bb461 lvmdbusd: Handle duplicate VG names
Lvm can at times have duplicate names.  When this happens the daemon will
internally use vg_name:vg_uuid as the name for lookups, but display just
the vg_name externally.  If an API user uses the Manager.LookUpByLvmId and
queries the vg name they will only get returned one result as the API
can only accommodate returning 1.  The one returned is the first instance
found when sorting the volume groups by UUID.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1583510
2019-01-16 16:29:05 -06:00
Tony Asleson
b4c3382990 lvmdbusd: Correct object manager lookups
When we have two logical volumes which switch their names at the
same time we are left with incorrect lookups.  Anytime we find
an entry by doing a lookup by UUID or by name we will ensure
that the lookups are indeed correct.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1642176
2019-01-16 16:29:05 -06:00
Tony Asleson
1ed4b3f23b lvmdbusd: Spelling correction 2019-01-16 16:29:05 -06:00
Tony Asleson
4c1fd82774 lvmdbusd: LookUpByLvmId: Add doc for cb, cbe 2019-01-16 16:29:05 -06:00
Tony Asleson
b6d26245fb lvmdbusd: Ensure all paths return value 2019-01-16 16:29:05 -06:00
David Teigland
e158835a05 lvmlockd: make lockstart wait for existing start
If there are two independent scripts doing:
  vgchange --lockstart vg
  lvchange -ay vg/lv

The first vgchange to do the lockstart will wait for
the lockstart to complete before returning.
The second vgchange to do the lockstart will see that
the start is already in progress (from the first) and
will do nothing.  This means the second does not wait
for any lockstart to complete, and moves on to the
lvchange which may find the lockspace still starting
and fail.

To fix this, make the vgchange lockstart command
wait for any lockstart's in progress to complete.
2019-01-16 10:49:04 -06:00
Zdenek Kabelac
44aeb6d6b8 cleanup: use zalloc
Some places forget to use zalloc().
2018-12-22 23:55:48 +01:00
Zdenek Kabelac
fc479b2b07 cov: fix memleak on error path
Do not leak lvs pointer on error path.
2018-12-22 23:55:48 +01:00
Zdenek Kabelac
1fc5d8c428 Revert "lvmlockd: Fix arguments when built without sanlock"
This reverts commit b068f21f6a.

This revert was incorrect.
2018-12-21 22:41:00 +01:00
Zdenek Kabelac
a13fa75d8e dmeventd: unlock lvm2 lock on error path
New code missed to unlock locked lvm2 on error path when
command is not configured.
2018-12-21 21:43:36 +01:00
Zdenek Kabelac
a3fe619552 lvmlockd: drop superfluous defines
These defines are automatically granted with _GNU_SOURCE
which is use for whole compilation via configure.h.
2018-12-21 21:42:30 +01:00
Zdenek Kabelac
71af650760 lvmlockd: use commonly used define NOTIFYDBUS_SUPPORT
Build with configured NOTIFYDBUS_SUPPORT, SYSTEMD_LIBS, SYSTEMD_CFLAGS.
Also add proper build dependencies on internal libraries.
2018-12-21 21:42:30 +01:00
Zdenek Kabelac
98924e4703 lvmpolld: improve makefile deps
Add correct build dependencies on internal libraries.
2018-12-21 21:42:23 +01:00
Zdenek Kabelac
18aa541ca2 configure: avoid repeative inclusion of configure.h
Since configure.h is a generated header and it's missing traditional
ifdefs preambule - it can be included & parsed multiple times.
Normally compiler is fine when defines have same value and there is
no warning - yet we don't need to parse this several times
and by adding -include  directive we can ensure every file
in the package is rightly compile with configure.h as the
first header file.
2018-12-21 19:19:50 +01:00
Tony Asleson
5bdcafff47 lvmdbusd: Handle exported VG(s)
When a VG is exported, the 'fullreport' returns an exit code of 5, but
otherwise returns the data we are wanting.

Signed-off-by: Tony Asleson <tasleson@redhat.com>
2018-12-20 10:27:30 -06:00
Tony Asleson
ab1f1a306b lvmdbusd: Exit daemon when unable to retrieve state
In some cases we get stuck where we are unable to retrieve the current
state of lvm as we are encountering an error.  When the error is
persistent we will log and exit the daemon instead of consuming vast
amounts of resources.

Signed-off-by: Tony Asleson <tasleson@redhat.com>
2018-12-20 10:27:30 -06:00
Zdenek Kabelac
9785e40b8d dmeventd: resolve compilation of vdo status parsing
A bit of chicken & egg problem - dmeventd needs to use old libdm library.
VDO is only part of new device_mapper internal library.

So include directly source file for parsing status - this fixes usability
problem of VDO plugin introduced with previous Makefile reshaping
patchset.

NOTE: source file needs to be keep then compilable in both environments.

Also add missing copyright header.
2018-12-20 13:26:55 +01:00
Marian Csontos
b068f21f6a lvmlockd: Fix arguments when built without sanlock
(cherry picked from commit 24254ca866)
2018-12-18 17:42:22 +01:00
Zdenek Kabelac
d76b4afb8e makefiles: sort 2018-12-17 10:36:52 +01:00
Zdenek Kabelac
a8cdd9e16a cmirror: link with libdm
Since there is very little change there will be any new devel going
to happing with cmirror - avoid eating extra disk space and link
with already installed libdm which implements all use basic
function of dm list
2018-12-17 10:36:52 +01:00
Zdenek Kabelac
8bf445b2de dmeventd: do not link internal libraries to plugins
Avoid linking internal device-mapper and link dynamically libdevmapper.
This considerably reduced size of installed binaries.
2018-12-17 10:36:52 +01:00
Zdenek Kabelac
035a7b9a4b dmeventd: fix linking with libdevmapper
Since dmeventd is 'libdm' based project, it needs to link
libdm library instead of its internal version

An external users may provide plugins loadeable by dmeventd.
So external user of libdevmapper-event library has no other option
then to link with released libdevmapper library.

The complexity comes with lvm2 plugins.
The lvm2 plugin itself uses internal version of device_mapper,
but libdevmapper-event usage is libdm based - so there needs to be avoided
any breakage on compatibility of internal i.e. dm_task_run structures.

TODO: most likely dmeventd itself should be moved into libdm/dm-tools dir,
and only lvm2 plugins should be created as part of lvm project,
but those still need to link with libdevmapper.
2018-12-14 22:33:22 +01:00
Tony Asleson
2e01af0f78 lvmdbusd: Update table lookup for state lv_attr 2018-12-14 08:28:03 -06:00