Bug 1265768

Summary:	unable to swap thin meta volume residing on a shared VG
Product:	Red Hat Enterprise Linux 7	Reporter:	Corey Marthaler <cmarthal>
Component:	lvm2	Assignee:	David Teigland <teigland>
lvm2 sub component:	LVM lock daemon / lvmlockd	QA Contact:	cluster-qe <cluster-qe>
Status:	CLOSED WONTFIX	Docs Contact:
Severity:	medium
Priority:	medium	CC:	agk, heinzm, jbrassow, prajnoha, rbednar, teigland, zkabelac
Version:	7.8
Target Milestone:	rc
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:
Clones:	1686539 (view as bug list)		Environment:
Last Closed:	2020-12-15 07:37:00 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1686539

Description Corey Marthaler 2015-09-23 17:32:34 UTC

Description of problem:
# setting up first "global lock" dummy vg for lvmlockd...
vgcreate --shared global /dev/sdd2
vgchange --lock-start global

# creating lvm devices...
pvcreate /dev/sdd1 /dev/sdb2 /dev/sdb1 /dev/sdc2 /dev/sdc1 /dev/sda2 /dev/sda1 /dev/sde2
vgcreate --shared snapper_thinp /dev/sdd1 /dev/sdb2 /dev/sdb1 /dev/sdc2 /dev/sdc1 /dev/sda2 /dev/sda1 /dev/sde2
vgchange --lock-start snapper_thinp

lvcreate  --thinpool POOL --profile thin-performance --zero n -L 1G --poolmetadatasize 4M snapper_thinp

[root@host-113 ~]# lvs -a -o +devices
  LV              VG            Attr       LSize   Pool Origin Data%  Meta% Devices
  [lvmlock]       global        -wi-ao---- 256.00m                          /dev/sdd2(0)
  POOL            snapper_thinp twi-a-t---   1.00g             0.00   0.98  POOL_tdata(0)
  [POOL_tdata]    snapper_thinp Twi-ao----   1.00g                          /dev/sdd1(65)
  [POOL_tmeta]    snapper_thinp ewi-ao----   4.00m                          /dev/sde2(0)
  [lvmlock]       snapper_thinp -wi-ao---- 256.00m                          /dev/sdd1(0)
  [lvol0_pmspare] snapper_thinp ewi-------   4.00m                          /dev/sdd1(64)

# step up for a sanity check of pool device metadata (thin_check /dev/mapper/snapper_thinp-meta_swap)
[root@host-113 ~]# lvchange -an --yes --select 'lv_name=POOL || pool_lv=POOL'
[root@host-113 ~]# lvcreate -L 4M -n meta_swap snapper_thinp
  Logical volume "meta_swap" created.
[root@host-113 ~]# lvconvert --yes --thinpool snapper_thinp/POOL --poolmetadata snapper_thinp/meta_swap
  Internal error: LV snapper_thinp/POOL_tmeta shouldn't have lock_args


Version-Release number of selected component (if applicable):
3.10.0-306.el7.x86_64

lvm2-2.02.130-2.el7    BUILT: Tue Sep 15 07:15:40 CDT 2015
lvm2-libs-2.02.130-2.el7    BUILT: Tue Sep 15 07:15:40 CDT 2015
lvm2-cluster-2.02.130-2.el7    BUILT: Tue Sep 15 07:15:40 CDT 2015
device-mapper-1.02.107-2.el7    BUILT: Tue Sep 15 07:15:40 CDT 2015
device-mapper-libs-1.02.107-2.el7    BUILT: Tue Sep 15 07:15:40 CDT 2015
device-mapper-event-1.02.107-2.el7    BUILT: Tue Sep 15 07:15:40 CDT 2015
device-mapper-event-libs-1.02.107-2.el7    BUILT: Tue Sep 15 07:15:40 CDT 2015
device-mapper-persistent-data-0.5.5-1.el7    BUILT: Thu Aug 13 09:58:10 CDT 2015
cmirror-2.02.130-2.el7    BUILT: Tue Sep 15 07:15:40 CDT 2015
sanlock-3.2.4-1.el7    BUILT: Fri Jun 19 12:48:49 CDT 2015
sanlock-lib-3.2.4-1.el7    BUILT: Fri Jun 19 12:48:49 CDT 2015
lvm2-lockd-2.02.130-2.el7    BUILT: Tue Sep 15 07:15:40 CDT 2015


How reproducible:
Everytime

Comment 2 David Teigland 2015-09-24 19:08:01 UTC

I'd forgotten about that feature; it's among the "not yet implemented" features, which the error should explain.

Comment 7 RHEL Program Management 2020-12-15 07:37:00 UTC

After evaluating this issue, there are no plans to address it further or fix it in an upcoming release.  Therefore, it is being closed.  If plans change such that this issue will be fixed in an upcoming release, then the bug can be reopened.