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Commit Graph

12 Commits

Author SHA1 Message Date
Tony Asleson
bd96036835 lvmdbusd: Use 'pv_missing' column instead of '[unknown]'
Previously using '[unknown]' for PV device path comparison which
is incorrect as it's not always true.
2016-09-28 12:07:48 -05:00
Tony Asleson
be5eb995d3 lvmdbusd: Remove extraneous parameter
Remove 'gen_new' parameter as it's not needed, correct documentation.
2016-09-28 12:05:44 -05:00
Tony Asleson
a93616cf66 lvmdbusd: Add diagnostic validate for look ups
Make sure that the lookup tables don't have extranoues stuff in
them.
2016-09-27 13:28:54 -05:00
Tony Asleson
063265eacd lvmdbusd: Allow PV device names to be '[unknown]'
When a PV device is missing lvm will return '[unknown]' for the device
path.  The object manager keeps a hash table lookup for uuid and for PV's
device name.  When we had multiple PVs with the same device path we
we only had 1 key in the table for the lvm id (device path).  This caused
a problem when the PV device transitioned from '[unknown]' to known as any
subsequent transitions would cause an exception:

Traceback (most recent call last):
  File "/usr/lib/python3.5/site-packages/lvmdbusd/request.py", line 66, in run_cmd
    result = self.method(*self.arguments)
  File "/usr/lib/python3.5/site-packages/lvmdbusd/manager.py", line 205, in _pv_scan
    cfg.load()
  File "/usr/lib/python3.5/site-packages/lvmdbusd/fetch.py", line 24, in load
    cache_refresh=False)[1]
  File "/usr/lib/python3.5/site-packages/lvmdbusd/pv.py", line 48, in load_pvs
    emit_signal, cache_refresh)
  File "/usr/lib/python3.5/site-packages/lvmdbusd/loader.py", line 80, in common
    cfg.om.remove_object(cfg.om.get_object_by_path(k), True)
  File "/usr/lib/python3.5/site-packages/lvmdbusd/objectmanager.py", line 153, in remove_object
    self._lookup_remove(path)
  File "/usr/lib/python3.5/site-packages/lvmdbusd/objectmanager.py", line 97, in _lookup_remove
    del self._id_to_object_path[lvm_id]
KeyError: '[unknown]'

when trying to delete a key that wasn't present.  In this case we don't add a
lookup key for the device path and the PV can only be located by UUID.

Ref: https://bugzilla.redhat.com/show_bug.cgi?id=1379357
2016-09-27 13:28:54 -05:00
Tony Asleson
a882eb2b3b lvmdbusd: Clean up objectmanager.get_object_path_by_uuid_lvm_id
This method grew crufty with a number of stuble bugs.  Refactor and
simplify.
2016-09-27 13:28:54 -05:00
Tony Asleson
5392a612dc lvmdbusd: WS/pep8 corrections 2016-08-29 15:28:06 -05:00
Tony Asleson
9e3ad37828 lvmdbusd: Clean up ws 2016-06-28 12:45:28 -05:00
Tony Asleson
b81186e535 lvmdbusd: Add method get_object_path_by_lvm_id
The object manager method get_object_by_lvm_id was used in many cases for
the sole reason of getting the object path for the object.  Instead of
retrieving the object and then calling 'dbus_object_path' on the object, we
are adding a method which returns the object path.
2016-06-10 16:04:43 -05:00
Tony Asleson
b717e8fe1d lvmdbusd: Rename get_object_path_by_lvm_id
Renaming to get_object_path_by_uuid_lvm_id, to clarify that both the uuid
and the lvm id are required.
2016-06-10 15:28:42 -05:00
Tony Asleson
41ebed7077 lvmdbusd: Change print statement to py3 syntax 2016-06-10 15:28:42 -05:00
Tony Asleson
a0c7875c54 lvmdbusd: Allow PV devices to be referenced by symlink(s)
See: https://bugzilla.redhat.com/show_bug.cgi?id=1318754

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