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Commit Graph

13 Commits

Author SHA1 Message Date
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
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
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
Tony Asleson
862ca6e8b7 lvmdbusd: Rename ee to got_external_event
This variable is global, make it more descriptive.
2017-03-20 10:08:39 -05:00
Tony Asleson
e53454d6de lvmdbusd: Use work queue for queries too
We need to place query operations in the queue to prevent the case where
a client knows of something before the service does.  For example if a
client creates a PV/VG/LV outside of the dbus API and then immediately
tries to lookup and use that resource in the lvm dbus service it should
be present.  By placing the queries in the work queue any previous
refresh operation will complete before we process the query.
2017-03-09 16:39:47 -06:00
Tony Asleson
b0757ac96e lvmdbusd: Remove unused variable
This variable has been un-used for a long time.
2016-11-30 15:59:06 -06:00
Tony Asleson
fa444906bb lvmdbusd: Use one thread to fetch state updates
In preparation to have more than one thread issuing commands to lvm
at the same time we need to serialize updates to the dbus state and
retrieving the global lvm state.  To achieve this we have one thread
handling this with a thread safe queue taking and coalescing requests.
2016-11-17 11:35:16 -06:00
Tony Asleson
affe2cebf5 lvmdbus: Make bus name configurable
Add env LVM_DBUS_NAME to change what the bus name is.
2016-11-17 11:35:16 -06:00
Tony Asleson
96a0604bd0 lvmdbusd: Correct imports 2016-08-29 15:26:56 -05:00
Tony Asleson
4902034c89 lvmdbusd: Use udev until ExternalEvent occurs
The normal mode of operation will be to monitor for udev events until an
ExternalEvent occurs.  In that case the service will disable monitoring
for udev events and use ExternalEvent exclusively.

Note: User specifies --udev the service will always monitor udev regardless
if ExternalEvent is being called too.
2016-08-29 15:26:55 -05:00
Tony Asleson
ca28ea88be lvmdbusd: Add lvm flight recorder
To help out with debug, when an exception is thrown in the dbus service we
will dump all the information we have on the last 16 commands that were
executed along with the stack strace.

Signed-off-by: Tony Asleson <tasleson@redhat.com>
2016-03-21 17:28:51 -05:00
Alasdair G Kergon
5987562cf9 lvmdbus: Add new daemon. 2016-02-17 23:53:35 +00:00