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Commit Graph

207 Commits

Author SHA1 Message Date
Tony Asleson
60e4ba36e0 lvmdbusd: Remove unused locking functionality
I don't think we have ever utilized this, remove.
2022-09-16 10:49:37 -05:00
Tony Asleson
cfc87157a4 lvmdbusd: Make sure to set cfg.got_external_event
We were incorrectly only setting this if --udev wasn't present on the
command line.  In all cases when we see a manager.ExternalEvent we want
to set this.
2022-09-16 10:49:37 -05:00
Tony Asleson
068073e924 lvmdbusd: Correct typos 2022-09-16 10:49:36 -05:00
Tony Asleson
abf22df46c lvmdbusd: Handle no lastlog
Depending on when an occurs, it maynot have any information available for
lastlog.  In this case try to grab an error message from the original
response.
2022-09-16 10:49:36 -05:00
Tony Asleson
6b9cc7432e lvmdbusd: Remove exclusionary language 2022-09-16 10:49:36 -05:00
Tony Asleson
c13efb2ffc lvmdbusd: Remove unneeded command line args 2022-09-16 10:49:36 -05:00
Tony Asleson
b3d8366ff2 lvmdbusd: Add SIGUSR2 to dump flight recorder 2022-09-16 10:49:36 -05:00
Tony Asleson
05f7fa5a85 lvmdbusd: Re-work flight recorder data
Introduce a new lock for the flight recorder, so that we can dump it when
a command is block waiting for lvm to complete.  Also in all paths we will
addthe metadata to the flight recorder before it's done, so we will have
it when a command hangs and we dump the flight recorder. Add the missing
bits after the command has finished.

Cleaned up the output too.
2022-09-16 10:49:36 -05:00
Tony Asleson
3fdf449348 lvmdbusd: Add lockfile
The daemon cannot handle multiple copies of itself running at the
same time, ensure this cannot happen.
2022-09-16 10:49:36 -05:00
Tony Asleson
1a4384979c lvmdbusd: Move arg. setup/checking to function 2022-09-16 10:49:36 -05:00
Tony Asleson
3eb19c4b7a lvmdbusd: Remove addl. checks on --nojson
We check earlier that if you specify --nojson we will exit.
2022-09-16 10:49:36 -05:00
Tony Asleson
01ef2f2525 lvmdbusd: Remove try/except for mkfifo
We should never run into this error condition when using tempfile.mkdtemp.
2022-06-30 10:55:16 -05:00
Tony Asleson
0d957dcacc lvmdusd: Remove non lvm JSON output support 2022-06-30 10:55:16 -05:00
Tony Asleson
d393436727 lvmdbusd: Correct grammar in lvm shell proxy comments 2022-06-30 10:55:16 -05:00
Tony Asleson
6914942685 lvmdbusd: Don't require "lvm> " prompt for shell
Depending on how lvm is compiled, it may not present the "lvm> " prompt
when using the lvm shell.  Don't require it to be present.

Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=2090391
2022-06-30 10:55:16 -05:00
Tony Asleson
eee89a941e lvmdbusd: Job prop. Get/GetAll exec. immediately
This allows API user the ability to check on the status of a long running
job without blocking in the request queue.
2022-06-30 10:55:16 -05:00
Tony Asleson
7a2090655d lvmdbusd: Remove the use of sub shell for lvm shell
This reduces the number of processes and improves security.
2022-06-30 10:55:16 -05:00
Tony Asleson
51d9b686c0 lvmdbusd: Add debug output for which lvm binary is used 2022-06-30 10:55:16 -05:00
Tony Asleson
b3407b16c1 lvmdbusd: re-work lvm shell main
Add an optional single argument "bisect" to use with git bisect for
automation.  Normal case is no arguments when running stand-alone.
2022-06-30 10:55:16 -05:00
Tony Asleson
58c6c9e9aa lvmdbusd: Simplify child process env
We don't need to duplicate the entire env from the parent, supply only what
is needed.
2022-06-30 10:55:16 -05:00
Tony Asleson
37733cd4eb lvmdbusd: Correct conditional for lvm child process running
Poll returns None when process is running, else exit value.  If poll returns
0 we will fail to exit the select loop.
2022-06-30 10:55:16 -05:00
Vojtech Trefny
61bd5e5023 lvmdbusd: Use ID_FS_TYPE UDev property in udevwatch
'.ID_FS_TYPE_NEW' is a custom property added by an LVM UDev rule
which is now being removed and 'ID_FS_TYPE' has the same value.

Signed-off-by: Vojtech Trefny <vtrefny@redhat.com>
2021-10-07 12:42:44 -05:00
Tony Asleson
f773040625 lvmdbusd: Wrap json.load in try/except
In testing where we inject large amounts of additional output in stderr
we can occassionally get truncated stdout from lvm.  Catching and dumping
the json for debug before we re-raise the exception.  As this doesn't
happen without the error injecting wrapper around lvm, the error seems to
be with the wrapper.

Signed-off-by: Tony Asleson <tasleson@redhat.com>
2021-06-17 09:14:29 -05:00
Tony Asleson
c474f174cc lvmdbusd: Handle arbitrary amounts stdout & stderr
When exec'ing lvm, it's possible to get large amounts of both stdout
and stderr depending on the state of lvm and the size of the lvm
configuration.  If we allow any of the buffers to fill we can end
up deadlocking the process.  Ensure we are handling stdout & stderr
during lvm execution.

Ref. https://bugzilla.redhat.com/show_bug.cgi?id=1966636

Signed-off-by: Tony Asleson <tasleson@redhat.com>
2021-06-17 09:14:29 -05:00
Tony Asleson
f70d97b916 lvmdbusd: Defer dbus object removal
When we are walking the new lvm state comparing it to the old state we can
run into an issue where we remove a VG that is no longer present from the
object manager, but is still needed by LVs that are left to be processed.
When we try to process existing LVs to see if their state needs to be
updated, or if they need to be removed, we need to be able to reference the
VG that was associated with it.  However, if it's been removed from the
object manager we fail to find it which results in:

Traceback (most recent call last):
File "/usr/lib/python3.6/site-packages/lvmdbusd/utils.py", line 666, in _run
  self.rc = self.f(*self.args)
File "/usr/lib/python3.6/site-packages/lvmdbusd/fetch.py", line 36, in _main_thread_load
  cache_refresh=False)[1]
File "/usr/lib/python3.6/site-packages/lvmdbusd/lv.py", line 146, in load_lvs
  lv_name, object_path, refresh, emit_signal, cache_refresh)
File "/usr/lib/python3.6/site-packages/lvmdbusd/loader.py", line 68, in common
  num_changes += dbus_object.refresh(object_state=o)
File "/usr/lib/python3.6/site-packages/lvmdbusd/automatedproperties.py", line 160, in refresh
  search = self.lvm_id
File "/usr/lib/python3.6/site-packages/lvmdbusd/lv.py", line 483, in lvm_id
  return self.state.lvm_id
File "/usr/lib/python3.6/site-packages/lvmdbusd/lv.py", line 173, in lvm_id
  return "%s/%s" % (self.vg_name_lookup(), self.Name)
File "/usr/lib/python3.6/site-packages/lvmdbusd/lv.py", line 169, in vg_name_lookup
  return cfg.om.get_object_by_path(self.Vg).Name

Instead of removing objects from the object manager immediately, we will
keep them in a list and remove them once we have processed all of the state.

Ref:
https://bugzilla.redhat.com/show_bug.cgi?id=1968752
2021-06-16 12:19:02 -05:00
Tony Asleson
e8f3a63000 lvmdbusd: Don't setup search key unless needed
self.lvm_id is a property which actually executes some code which doesn't
need to be executed everytime.
2021-06-16 12:19:02 -05:00
Zdenek Kabelac
ee9488488f makefiles: fix location of basedir 2021-03-08 15:22:27 +01:00
Marian Csontos
e10633394d makefiles: Revert most of 456b659
Must not use DESTDIR with --basedir.

Reverts: 456b659b4e
2021-03-08 13:59:26 +01:00
Zdenek Kabelac
456b659b4e makefiles: integrate DESTDIR
Always use lvmdbusdir with DESTDIR.
2021-03-02 22:54:40 +01:00
Vojtech Trefny
d4d060acd5 lvmdbusd: Bump LVM DBus API version
So users can check for writecache support.
2020-08-06 13:54:45 -05:00
Vojtech Trefny
8f1068c02d lvmdbusd: Add support for LVM writecache 2020-08-06 13:54:34 -05:00
David Teigland
4667c4b35b lvmdbusd: recognize lv attr letter g for integrity 2020-07-15 10:07:28 -05:00
Vojtech Trefny
c496ba6505 lvmdbusd: Add function to convert LV into a VDO pool 2020-01-09 13:07:55 -06:00
Vojtech Trefny
c3ef41f620 lvmdbusd: Add VDO enable/disable compress & dedup
Added methods to vdo pool interface to allow enabling and
disabling of VDO:
 * Compression
 * Deduplication
2020-01-09 13:07:47 -06:00
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
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
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