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Commit Graph

1657 Commits

Author SHA1 Message Date
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
Tony Asleson
a6cba2d0a0 lvmdbusd: Update table lookup for health lv_attr 2018-12-14 08:28:02 -06:00
Tony Asleson
51f08efaa7 lvmdbusd: Handle missing lv_attr table lookups
If we don't know the meaning we will return the key with default text
instead of raising an exception and taking the daemon out in the
process.

Resolves: rhbz1657950
2018-12-14 08:28:02 -06:00
Tony Asleson
f1684bf8e8 lvmdbusd: Dump blackbox newest first
When we get bug reports we may not get the entire log, so lets
dump the fight recorder from newest to oldest as the one we
are interested in was likely to be the last command run.
2018-12-14 08:28:02 -06:00
Zdenek Kabelac
63b0f0dab8 headers: use full path header instead of -I directive
Replace Makefile -I  with full path to headers like we use now
everywhere else.
2018-12-14 15:13:38 +01:00
Zdenek Kabelac
0b19387dae headers: use configure.h as 1st. header
Ensure configure.h is always 1st. included header.
Maybe we could eventually introduce gcc -include option, but for now
this better uses dependency tracking.

Also move _REENTRANT and _GNU_SOURCE into configure.h so it
doesn't need to be present in various source files.
This ensures consistent compilation of headers like stdio.h since
it may produce different declaration.
2018-12-14 15:09:13 +01:00
Marian Csontos
46a8d2e898 dmeventd: Fix libdevmapper-event linking 2018-12-12 15:43:03 +01:00
Zdenek Kabelac
ceb2f0ad3b makefiles: updates for less verbosity 2018-11-29 23:05:43 +01:00
David Teigland
d8284beb23 lvmlockctl: wait by default when stopping
lvmlockctl --stop-lockspaces was by default not waiting
for all the lockspaces to be gone.
2018-11-27 13:41:33 -06:00
Zdenek Kabelac
b968c73d21 sanlock: update headers 2018-11-19 16:55:11 +01:00
Zdenek Kabelac
9d9979963f debug: tracing fclose failure
Using log_debug (not returning error code) to trace possible
failure of fclose().
2018-11-05 17:25:11 +01:00
Zdenek Kabelac
0d934e730e cov: trace failing pthread_kill 2018-11-03 16:10:32 +01:00
David Teigland
5d747f724e lvmlockd: use standard major minor functions 2018-11-02 15:58:47 -05:00
David Teigland
e7a56d5cd3 lvmlockd: fix handling of sanlock release error
When sanlock_release returns an error because of an i/o
timeout releasing the lease on disk, lvmlockd should just
consider the lock released.  sanlock will continue trying
to release the lease on disk after the original request
times out.
2018-11-02 12:11:09 -05:00
David Teigland
0b01e3f5d7 lvmlockd: use new sanlock sector/align interface
The choice about sector size and lease align size is
now made by the sanlock user, in this case lvmlockd.
This will allow lvmlockd to use other lease sizes in
the future.  This also prevents breakage if hosts
report different sector sizes, or the sector size
reported by a device changes.
2018-11-01 13:25:21 -05:00
Zdenek Kabelac
3222924c3d cov: dmeventd plugin fix memleak
Fix memory leak when policy command fails too frequently and
plugin decided to skip it.
2018-10-15 17:49:22 +02:00
Marian Csontos
37366ec3b0 build: gcc can be fussy about order of libs 2018-10-10 11:25:50 +02:00
Zdenek Kabelac
194eccf925 dmeventd: lvm2 plugin uses envvar registry
Thin plugin started to use configuble setting to allow to configure
usage of external scripts - however to read this value it needed to
execute internal command as dmeventd itself has no access to lvm.conf
and the API for dmeventd plugin has been kept stable.

The call of command itself was not normally 'a big issue' until users
started to use higher number of monitored LVs and execution of command
got stuck because other monitored resource already started to execute
some other lvm2 command and become blocked waiting on VG lock.

This scenario revealed necesity to somehow avoid calling lvm2 command
during resource registration - but this requires bigger changes - so
meanwhile this patch tries to minimize the possibility to hit this race
by obtaining any configurable setting just once - such patch is small
and covers majority of problem - yet better solution needs to be
introduced likely with bigger rework of dmeventd.

TODO: avoid blocking registration of resource with execution of lvm2
commands since those can get stuck waiting on mutexes.
2018-10-10 09:54:07 +02:00
David Teigland
297f6d5122 lvmlockd: improve systemd service file
use notify type so the daemon is ready
immediately after start.
2018-09-13 09:52:39 -05:00
Marian Csontos
97506a7e2a build: Remove lvmetad leftovers 2018-07-24 15:02:32 +02:00
David Teigland
117160b27e Remove lvmetad
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.
2018-07-11 11:26:42 -05:00
Zdenek Kabelac
80e6097ea6 dmeventd: base vdo plugin
Introduce VDO plugin for monitoring VDO devices.

This plugin can be used also by other users, as plugin checks
for UUID prefix 'LVM-' and run  lvm actions only on those
devices.

Non LVM- device are only monitored and log warnings
when usage threshold reaches 80%.
2018-07-09 15:28:32 +02:00
Zdenek Kabelac
c728d88e11 build: include configure.h
It's important to consistenly include  configure.h as the 1st. header.
It containts #defines influencing behavior of other included header
files.
2018-06-22 23:11:44 +02:00
Zdenek Kabelac
b2cb8f846a build: cmirrord with internal dm lib 2018-06-14 23:14:04 +02:00
Joe Thornber
fededfbbbc dmfilemapd: Move to libdm/dm-tools
No longer uses any lvm code.
2018-06-14 14:27:19 +01:00
Zdenek Kabelac
9c7ee1e1c4 build: link dmeventd plugins with internal libs 2018-06-11 22:25:42 +02:00
Joe Thornber
0ac89fb860 various: some missing #include zalloc.h 2018-06-08 14:18:09 +01:00
Joe Thornber
d5da55ed85 device_mapper: remove dbg_malloc.
I wrote dbg_malloc before we had valgrind.  These days there's just
no need.
2018-06-08 13:40:53 +01:00
Joe Thornber
286c1ba336 device_mapper: rename libdevmapper.h -> all.h
I'm paranoid a file will include the global one in /usr/include
by accident.
2018-06-08 12:31:45 +01:00
David Teigland
3e781ea446 Remove clvmd and associated code
More code reduction and simplification can follow.
2018-06-05 11:09:13 -05:00
Joe Thornber
232918fb86 build: libbase.a 2018-06-04 13:53:07 +01:00
Zdenek Kabelac
1140d70893 build: fixes 2018-06-04 12:28:13 +02:00
Joe Thornber
02c4901d89 build: get clvmd building again 2018-06-01 19:18:36 +01:00
Joe Thornber
dbba1e9b93 Merge branch 'master' into 2018-05-11-fork-libdm 2018-06-01 13:04:12 +01:00
David Teigland
6cd0523337 lvmlockd: enable repairing shared VG while reading it
When the lvmlockd lock is shared, upgrade it to ex
when repair (writing) is needed during vg_read.

Pass the lockd state through additional read-related
functions so the instances of repair scattered through
vg_read can be handled.

(Temporary solution until the ad hoc repairs can be
pulled out of vg_read into a top level, centralized
repair function.)
2018-05-30 12:56:46 -05:00
David Teigland
a9f2c1e1f5 lvmlockd: suppress error messages related to lvmetad
Log lvmetad related messages as debug, not as errors,
when using lvmlockd without lvmetad.
2018-05-18 16:00:54 -05:00
Zdenek Kabelac
b2574c2f3a python: use // for integer division 2018-05-18 16:25:44 +02:00
Zdenek Kabelac
5b86b0e3dc build: set clean vars earlier
For better cleaning of test dirs.
2018-05-18 16:25:44 +02:00
Joe Thornber
89fdc0b588 Merge branch 'master' into 2018-05-11-fork-libdm 2018-05-16 13:43:02 +01:00
Joe Thornber
ccc35e2647 device-mapper: Fork libdm internally.
The device-mapper directory now holds a copy of libdm source.  At
the moment this code is identical to libdm.  Over time code will
migrate out to appropriate places (see doc/refactoring.txt).

The libdm directory still exists, and contains the source for the
libdevmapper shared library, which we will continue to ship (though
not neccessarily update).

All code using libdm should now use the version in device-mapper.
2018-05-16 13:00:50 +01:00
Joe Thornber
7f97c7ea9a build: Don't generate symlinks in include/ dir
As we start refactoring the code to break dependencies (see doc/refactoring.txt),
I want us to use full paths in the includes (eg, #include "base/data-struct/list.h").
This makes it more obvious when we're breaking abstraction boundaries, eg, including a file in
metadata/ from base/
2018-05-14 10:30:20 +01:00
Zdenek Kabelac
7616a7f46e build: properly track source file for lmvlockctl
Ensure the source file is tracked by various cleanup functions.
2018-05-12 18:05:50 +02:00
David Teigland
c016b573ee clvmd: separate saved_vg from vginfo
The clvmd saved_vg data is independent from the normal lvm
lvmcache vginfo data, so separate saved_vg from vginfo.
Normal lvm doesn't need to use save_vg at all, and in clvmd,
lvmcache changes on vginfo can be made without worrying
about unwanted effects on saved_vg.
2018-05-03 14:54:48 -05:00
Joe Thornber
972b535220 build: add -D_FILE_OFFSET_BITS=64
I don't like having this in a common header because it means you end
up including too much and causing unneccessary dependencies.  eg,
lib/misc/lib.h includes libdevmapper.h, internationalisation, and
logging stuff.
2018-05-02 18:40:38 +01:00
David Teigland
c1cd18f21e Remove lvm1 and pool disk formats
There are likely more bits of code that can be removed,
e.g. lvm1/pool-specific bits of code that were identified
using FMT flags.

The vgconvert command can likely be reduced further.

The lvm1-specific config settings should probably have
some other fields set for proper deprecation.
2018-04-30 16:55:02 -05:00
Joe Thornber
1ddbbb67e0 build: fix typo in dmeventd/plugins/Makefile.in 2018-04-30 15:31:57 +01:00
Joe Thornber
2bc896f2a3 build: remove --with-{snapshots,mirrors,raid,thin,cache} options from ./configure
It now behaves as if the were all set as 'internal'
2018-04-30 10:11:23 +01:00
David Teigland
4670e9f698 skip some clvmd-specific code in common cases
This, or something like it, can probably be done
in many other places.
2018-04-25 16:40:08 -05:00
David Teigland
9b6a62f944 lvmcache: simplify
Recent changes allow some major simplification of the way
lvmcache works and is used.  lvmcache_label_scan is now
called in a controlled fashion at the start of commands,
and not via various unpredictable side effects.  Remove
various calls to it from other places.  lvmcache_label_scan
should not be called from anywhere during a command, because
it produces an incorrect representation of PVs with no MDAs,
and misclassifies them as orphans.  This has been a long
standing problem.  The invalid flag and rescanning based on
that is no longer used and removed.  The 'force' variation is
no longer needed and removed.
2018-04-20 11:22:48 -05:00
David Teigland
c0973e70a5 dev_cache: clean up scan
Pull out all of the twisted logic and simply call dev_cache_scan
at the start of the command prior to label scan.
2018-04-20 11:22:48 -05:00
David Teigland
ddb5de7a98 clvm: fix bcache scan handling
We can't let clvmd keep all scanned devs open,
which prevents them from being removed.  So
drop the bcache data (and close fds) affter
doing a label scan.

Also set up bcache before the clvm-specific
vg_read (which needs to rescan the vg's devs
using bcache) and destroy the bcache after.
2018-04-20 11:22:48 -05:00
David Teigland
697fa7aa1d [makefile] add -laio to makefiles 2018-04-20 11:13:17 -05:00
Zdenek Kabelac
fa5ba7e42d coverity: ensure 0 end string
Use dm_strncpy() to enusure string ends with '\0'.
In case uuid does not fit, report error.
2018-04-20 12:17:01 +02:00
Zdenek Kabelac
037c234eaa cleanup: avoid compiler warn
When variable is unused...
2018-04-20 12:17:01 +02:00
Zdenek Kabelac
c82ab92d04 cleanup: use zalloc
Replace malloc() + memset()   with zalloc().
2018-03-17 23:33:58 +01:00
Zdenek Kabelac
5c40e81a7e cleanup: use direct initializer 2018-03-17 23:33:58 +01:00
Zdenek Kabelac
b4c69320fc coverity: move declaration out of the loop
Move declaration of count counter outside the while loop.
2018-03-17 23:33:58 +01:00
Zdenek Kabelac
26c58027fb coverity: validate descriptor
Since this function is called with 'fd == -1', but Coverity can't see
this path can't be visited with this argument, add explicit check for
valid descriptor.
2018-03-17 23:33:58 +01:00
Zdenek Kabelac
b6e7a0b490 cleanup: more usage of dm_strncpy
Use existing wrapper function arournd  strncpy + buf[] = 0;
2018-03-06 15:40:34 +01:00
Zdenek Kabelac
9be086fbee thin: pass environment to scripts
When dmeventd thin plugin forks a configurable script, switch to use
execvp to pass whole environment present to dmeventd - so all configured
paths present at dmeventd startup are visible to script.

This was likely not a problem for common user enviroment,
however in test suite case variable like LVM_SYSTEM_DIR were
not actually used from test itself but rather from
a system present lvm.conf and this may have cause strange
behavior of a testing script.
2018-03-06 15:35:04 +01:00
Zdenek Kabelac
9bfc8881cb coverity: missing free on error path 2018-02-28 21:05:18 +01:00
Zdenek Kabelac
e87fa7c9ce sanlock: set proper return value
In last patch one error path missed to assign correct return value.
Assing it directly to 'ret' as log_error was already reported.
2018-02-19 16:44:10 +01:00
Zdenek Kabelac
d90a647802 activation: separate reporting of error and monitoring status
Avoid using same return code for reporting 2 different things
and stricly report error code by return value and add new
parameter for reporting monitoring status.

This makes easier to recognize which error we got from dm_event
and continue only with  ENOENT.
2018-02-12 22:14:59 +01:00
Zdenek Kabelac
4f278324c7 lvmlockd: improve dm path creation for sanlock LV
Use devmapper function to create matching dm name with mangling.
Drop extra '-1' from buffer passed to snprintf.
2018-02-12 22:14:25 +01:00
Zdenek Kabelac
7239a45b79 clean: drop unneeded -1 for snprintf
man gives:
snprintf() and vsnprintf() write at most size bytes
(including the terminating null byte ('\0')) to str.
2018-02-12 22:14:25 +01:00
Tim Foerster
34fb5202bd lvmdbusd: Remove duplicated DataPercent definition 2018-01-25 08:37:24 -06:00
Zdenek Kabelac
f41935909f dmeventd: add check for result code
Check result from pthread_kill.
2018-01-17 14:44:33 +01:00
Marian Csontos
c957d46f1d lvmdbusd: Make lvmdbusd executable
- Add files built from *.in to builddir files.
- Add all files built from *.in to DISTCLEAN_TARGETS.
2017-12-14 16:45:53 +01:00
Marian Csontos
7272fd2210 lvmdbusd: All tools use detected python3
- lvmdb.py and lvm_shell_proxy.py can be used as standalone tools, so
  should use detected value.
- clean executable bit on *.in files.
2017-12-12 13:17:07 +01:00
Marian Csontos
2aedc98242 lvmdbusd: Fix path to python3
lvmdbusd executable script must use python3 interpreter detected by
configure script, as site-packages directory used for library is only
used by that interpreter.
2017-12-11 12:36:54 +01:00
David Teigland
0f0f6978e7 lvmlock: return an error if lvb cannot be written
It doesn't make much difference, because if this happens,
it means there are other more significant problems.
2017-12-06 10:49:31 -06:00
David Teigland
46d6f7a639 lvmlockd: recognize normal errors from sanlock_convert
Don't log an error message for error values returned
by sanlock_convert for expected conditions like lock
contention or io timeouts.
2017-12-05 11:53:03 -06:00
David Teigland
bd893348b4 lvmlockd: avoid blocking in sanlock_convert
Use the same flag as sanlock_acquire() for the
same purpose.  sanlock_convert can block like
acquire when doing a sh to ex conversion.
2017-12-05 11:53:03 -06:00
Zdenek Kabelac
76954884c7 cleanup: drop unused define 2017-12-04 15:38:50 +01:00
David Teigland
bbaaf4f1d3 lvmlockd: override unknown lock manager error numbers
When sanlock or dlm lock managers return an error number
that we don't recognize, replace it with a generic -ELMERR
which is defined in the set of special lvmlockd error
numbers.  Otherwise, an unknown lock manager error number
could be misinterpreted for something else if it happened
to overlap another set of error numbers (which they have
not thus far.)
2017-11-17 10:59:12 -06:00
David Teigland
e52d2e3bd8 lvmlockd: retry on other sanlock errors
These less common errors returned from sanlock should
also cause sanlock to retry the lock acquire:

- i/o timeout occurs during sanlock_acquire().
  other i/o on the same disk as the leases can cause
  sanlock i/o timeouts.

- low level disk paxos contention between hosts naturally
  causes one host to not acquire the lease.  There are a
  couple special error numbers associated with these cases
  that should just be recognized as a normal failure to
  acquire the lease.
2017-11-17 10:59:12 -06:00
Zdenek Kabelac
0c9e3e8df2 coverity: add some initilizers
Coverity cannot do a deeper analyzis so let's make just reports
go away and initialize them to 0.
2017-11-07 21:26:11 +01:00
Eric Ren
14d0b0bbdd clvmd: supress ENOENT error on testing connection
In HA cluster, we have "clvm" resource agent to manage clvmd daemon.
The agent invokes clvmd like: "clvmd -T90 -d0", which  always prints
a scaring error message:

"""
local socket: connect failed: No such file or directory
"""

When specifed with "-d" option, clvmd tries to check if an instance
of the clvmd daemon is already running through a testing connection.
The connect() will fail with this ENOENT error in such case, so supress
the error message in such case.

TODO: add missing error reaction code - since ofter log_error, program
is not supposed to continue running (log_error() is for reporting
stopping problems).

Signed-off-by: Eric Ren <zren@suse.com>
2017-11-07 21:24:39 +01:00
David Teigland
1b319f39d6 lvmlockd: check error for sanlock access to lvmlock LV
When the sanlock daemon does not have permission to access
the lvmlock LV, make the error messages more helpful.
2017-10-17 13:45:53 -05:00
Zdenek Kabelac
9940c2f754 dmeventd: schedule exit on break
When dmeventd receives SIGTERM/INT/HUP/QUIT it validates if exit is possible.
If there was any device still monitored, such exit request used to
be ignored/refused. This 'usually' worked reasonably well, however if there
is very short time period between last device is unmonitored and signal
reception - there was possibility such EXIT was ignored, as dmeventd has
not yet got into idle state even commands like 'vgchange -an' has already
finished.

This patch changes logic towards scheduling EXIT to the nearest
point when there is no monitored device.

EXIT is never forgotten.

NOTE: if there is only a single monitored device and someone sends
SIGTERM and later someone uses i.e. 'lvchange --refresh' after
unmonitoring dmeventd will exit and new instance needs to be
started.
2017-10-05 10:19:21 +02:00
Tony Asleson
32c87d56b1 lvmdbusd: thread stacks dump support
If you send a SIGUSR1 (10) to the daemon it will dump all the
threads current stacks to stdout.  This will be useful when the
daemon is apparently hung and not processing requests.

eg.
$ sudo kill -10 <daemon pid>
2017-09-27 07:45:00 -05:00
Tony Asleson
60e3dbd6d5 lvmdbusd: Give threads names
This will allow easier debug.
2017-09-27 07:45:00 -05:00
Tony Asleson
2074094e77 lvmdbusd: Main thread exception logging
Make sure that any and all code that executes in the main thread is
wrapped with a try/except block to ensure that at the very least
we log when things are going wrong.
2017-09-27 07:45:00 -05:00