[RHEL6.1] lvremove fails with "Can't remove open logical volume" for not opened LVs

Solution Unverified - Updated 2024-08-07T05:32:34+00:00 -

Issue

lvremove sometimes fails with the messages below for not opened LVs.

phenomenon 1

# lvremove -f testvg/lv 
Can't remove open logical volume "lv"

phenomenon 2

# lvremove -f testvg/lv 
Unable to deactivate open testvg-lv (253:0) 
Unable to deactivate logical volume "lv"

phenomenon 3

# lvremove -f testvg/lv 
LV testvg/lv in use: not deactivating 
Unable to deactivate logical volume "lv"

The phenomenon sometimes repeatedly occurs and the LV really looks to be opened by someone so unremovable.
However, even just after the phenomenon, we cannot find any real opener. (Then, just by repeating lvremove, the LV can be removed soon.)
The phenomenon confuses users and support venders very much, so lets them spend much time to investigate the reason.
From a different aspect, applications using lvremove cannot handle the lvremove failure: applications cannot determine how many trials are needed to succeed lvremove, on the other hand, lvremove may never succeed due to a real opener resulting in an infinite loop.

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