1315491 – unable to remove extended thin pool on top of raid - "Unable to reduce RAID LV"

RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.

Bug 1315491 - unable to remove extended thin pool on top of raid - "Unable to reduce RAID LV"

Summary: unable to remove extended thin pool on top of raid - "Unable to reduce RAID LV"

Keywords:
Status:	CLOSED ERRATA
Alias:	None
Product:	Red Hat Enterprise Linux 6
Classification:	Red Hat
Component:	lvm2
Sub Component:
Version:	6.8
Hardware:	x86_64
OS:	Linux
Priority:	unspecified
Severity:	medium
Target Milestone:	rc
Target Release:	---
Assignee:	Zdenek Kabelac
QA Contact:	cluster-qe@redhat.com
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+	depends on / blocked

Reported:	2016-03-07 21:57 UTC by Corey Marthaler
Modified:	2016-05-11 01:20 UTC (History)
CC List:	9 users (show)
Fixed In Version:	lvm2-2.02.143-2.el6
Doc Type:	Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed:	2016-05-11 01:20:53 UTC
Target Upstream Version:
Embargoed:

Attachments	(Terms of Use)
lvremove -vvvv (86.59 KB, text/plain) 2016-03-10 17:18 UTC, Corey Marthaler	no flags	Details
View All

Links
System	ID	Private	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHBA-2016:0964	0	normal	SHIPPED_LIVE	lvm2 bug fix and enhancement update	2016-05-10 22:57:40 UTC

Description Corey Marthaler 2016-03-07 21:57:06 UTC

Description of problem:
This appears to be a regression from 6.8 rpms 140-3 and 141-2, and is also in the current version 143-1.


### RHEL 6.8 (141-2)                                                                                                                                                                                                                                                
                                                                                                                                                                                                                                                                    
[root@host-116 ~]# vgcreate test /dev/sd[abcdefgh]1                                                                                                                                                                                                                 
  Physical volume "/dev/sda1" successfully created                                                                                                                                                                                                                  
  Physical volume "/dev/sdb1" successfully created                                                                                                                                                                                                                  
  Physical volume "/dev/sdc1" successfully created                                                                                                                                                                                                                  
  Physical volume "/dev/sdd1" successfully created                                                                                                                                                                                                                  
  Physical volume "/dev/sde1" successfully created                                                                                                                                                                                                                  
  Physical volume "/dev/sdf1" successfully created                                                                                                                                                                                                                  
  Physical volume "/dev/sdg1" successfully created
  Physical volume "/dev/sdh1" successfully created
  Volume group "test" successfully created
[root@host-116 ~]#  lvcreate  --type raid1  -m 1 -L 100M -n raid test
  Logical volume "raid" created.
[root@host-116 ~]# lvs -a -o +devices
  LV              VG     Attr       LSize   Pool Origin Data%  Meta%  Cpy%Sync Devices
  raid            test   rwi-a-r--- 100.00m                           100.00   raid_rimage_0(0),raid_rimage_1(0)
  [raid_rimage_0] test   iwi-aor--- 100.00m                                    /dev/sda1(1)
  [raid_rimage_1] test   iwi-aor--- 100.00m                                    /dev/sdb1(1)
  [raid_rmeta_0]  test   ewi-aor---   4.00m                                    /dev/sda1(0)
  [raid_rmeta_1]  test   ewi-aor---   4.00m                                    /dev/sdb1(0)
[root@host-116 ~]# lvconvert --thinpool test/raid --yes
  WARNING: Converting logical volume test/raid to pool's data volume.
  THIS WILL DESTROY CONTENT OF LOGICAL VOLUME (filesystem etc.)
  Converted test/raid to thin pool.
[root@host-116 ~]# lvs -a -o +devices
  LV                    VG     Attr       LSize   Pool Origin Data%  Meta% Cpy%Sync Devices
  [lvol0_pmspare]       test   ewi-------   4.00m                                   /dev/sda1(27)
  raid                  test   twi-a-tz-- 100.00m             0.00   0.88           raid_tdata(0)
  [raid_tdata]          test   rwi-aor--- 100.00m                          100.00   raid_tdata_rimage_0(0),raid_tdata_rimage_1(0)
  [raid_tdata_rimage_0] test   iwi-aor--- 100.00m                                   /dev/sda1(1)
  [raid_tdata_rimage_1] test   iwi-aor--- 100.00m                                   /dev/sdb1(1)
  [raid_tdata_rmeta_0]  test   ewi-aor---   4.00m                                   /dev/sda1(0)
  [raid_tdata_rmeta_1]  test   ewi-aor---   4.00m                                   /dev/sdb1(0)
  [raid_tmeta]          test   ewi-ao----   4.00m                                   /dev/sda1(26)
[root@host-116 ~]# lvextend -l100%FREE test/raid
  Extending 2 mirror images.
  Size of logical volume test/raid_tdata changed from 100.00 MiB (25 extents) to 99.86 GiB (25564 extents).
  Logical volume raid successfully resized.
[root@host-116 ~]# lvs -a -o +devices
  LV                    VG     Attr       LSize   Pool Origin Data%  Meta% Cpy%Sync Devices
  [lvol0_pmspare]       test   ewi-------   4.00m                                   /dev/sda1(27)
  raid                  test   twi-a-tz-- 100.00m             0.00   0.88           raid_tdata(0)
  [raid_tdata]          test   rwi-aor---  99.86g                          100.00   raid_tdata_rimage_0(0),raid_tdata_rimage_1(0)
  [raid_tdata_rimage_0] test   iwi-aor---  99.86g                                   /dev/sda1(1)
  [raid_tdata_rimage_0] test   iwi-aor---  99.86g                                   /dev/sda1(28)
  [raid_tdata_rimage_0] test   iwi-aor---  99.86g                                   /dev/sdc1(0)
  [raid_tdata_rimage_0] test   iwi-aor---  99.86g                                   /dev/sde1(0)
  [raid_tdata_rimage_0] test   iwi-aor---  99.86g                                   /dev/sdg1(0)
  [raid_tdata_rimage_1] test   iwi-aor---  99.86g                                   /dev/sdb1(1)
  [raid_tdata_rimage_1] test   iwi-aor---  99.86g                                   /dev/sdd1(0)
  [raid_tdata_rimage_1] test   iwi-aor---  99.86g                                   /dev/sdf1(0)
  [raid_tdata_rimage_1] test   iwi-aor---  99.86g                                   /dev/sdh1(0)
  [raid_tdata_rmeta_0]  test   ewi-aor---   4.00m                                   /dev/sda1(0)
  [raid_tdata_rmeta_1]  test   ewi-aor---   4.00m                                   /dev/sdb1(0)
  [raid_tmeta]          test   ewi-ao----   4.00m                                   /dev/sda1(26)

[root@host-116 ~]# pvs
  PV         VG     Fmt  Attr PSize  PFree  
  /dev/sda1  test   lvm2 a--  24.99g      0 
  /dev/sdb1  test   lvm2 a--  24.99g   8.00m
  /dev/sdc1  test   lvm2 a--  24.99g      0 
  /dev/sdd1  test   lvm2 a--  24.99g      0 
  /dev/sde1  test   lvm2 a--  24.99g      0 
  /dev/sdf1  test   lvm2 a--  24.99g      0 
  /dev/sdg1  test   lvm2 a--  24.99g 100.00m
  /dev/sdh1  test   lvm2 a--  24.99g 100.00m

[root@host-116 ~]# lvremove test
Do you really want to remove active logical volume raid? [y/n]: y
  Unable to reduce RAID LV - operation not implemented.
  Error releasing logical volume "raid"








### RHEL 6.8 (140-3)

[root@host-116 ~]# vgcreate test /dev/sd[abcdefgh]1
  Physical volume "/dev/sda1" successfully created
  Physical volume "/dev/sdb1" successfully created
  Physical volume "/dev/sdc1" successfully created
  Physical volume "/dev/sdd1" successfully created
  Physical volume "/dev/sde1" successfully created
  Physical volume "/dev/sdf1" successfully created
  Physical volume "/dev/sdg1" successfully created
  Physical volume "/dev/sdh1" successfully created
  Volume group "test" successfully created
[root@host-116 ~]# lvcreate  --type raid1  -m 1 -L 100M -n raid test
  Logical volume "raid" created.
[root@host-116 ~]# lvs -a -o +devices
  LV              VG     Attr       LSize   Pool Origin Data%  Meta% Cpy%Sync Devices
  raid            test   rwi-a-r--- 100.00m                          100.00   raid_rimage_0(0),raid_rimage_1(0)
  [raid_rimage_0] test   iwi-aor--- 100.00m                                   /dev/sda1(1)
  [raid_rimage_1] test   iwi-aor--- 100.00m                                   /dev/sdb1(1)
  [raid_rmeta_0]  test   ewi-aor---   4.00m                                   /dev/sda1(0)
  [raid_rmeta_1]  test   ewi-aor---   4.00m                                   /dev/sdb1(0)
[root@host-116 ~]# lvconvert --thinpool test/raid --yes
  WARNING: Converting logical volume test/raid to pool's data volume.
  THIS WILL DESTROY CONTENT OF LOGICAL VOLUME (filesystem etc.)
  Converted test/raid to thin pool.
[root@host-116 ~]# lvs -a -o +devices
  LV                    VG     Attr       LSize   Pool Origin Data%  Meta% Cpy%Sync Devices
  [lvol0_pmspare]       test   ewi-------   4.00m                                   /dev/sda1(27)
  raid                  test   twi-a-tz-- 100.00m             0.00   0.88           raid_tdata(0)
  [raid_tdata]          test   rwi-aor--- 100.00m                          100.00   raid_tdata_rimage_0(0),raid_tdata_rimage_1(0)
  [raid_tdata_rimage_0] test   iwi-aor--- 100.00m                                   /dev/sda1(1)
  [raid_tdata_rimage_1] test   iwi-aor--- 100.00m                                   /dev/sdb1(1)
  [raid_tdata_rmeta_0]  test   ewi-aor---   4.00m                                   /dev/sda1(0)
  [raid_tdata_rmeta_1]  test   ewi-aor---   4.00m                                   /dev/sdb1(0)
  [raid_tmeta]          test   ewi-ao----   4.00m                                   /dev/sda1(26)
[root@host-116 ~]# lvextend -l100%FREE test/raid
  Extending 2 mirror images.
  Size of logical volume test/raid_tdata changed from 100.00 MiB (25 extents) to 99.86 GiB (25564 extents).
  Logical volume raid successfully resized.
[root@host-116 ~]# lvs -a -o +devices
  LV                    VG     Attr       LSize   Pool Origin Data%  Meta% Cpy%Sync Devices
  [lvol0_pmspare]       test   ewi-------   4.00m                                   /dev/sda1(27)
  raid                  test   twi-a-tz--  99.86g             0.00   10.64          raid_tdata(0)
  [raid_tdata]          test   rwi-aor---  99.86g                          100.00   raid_tdata_rimage_0(0),raid_tdata_rimage_1(0)
  [raid_tdata_rimage_0] test   iwi-aor---  99.86g                                   /dev/sda1(1)
  [raid_tdata_rimage_0] test   iwi-aor---  99.86g                                   /dev/sda1(28)
  [raid_tdata_rimage_0] test   iwi-aor---  99.86g                                   /dev/sdc1(0)
  [raid_tdata_rimage_0] test   iwi-aor---  99.86g                                   /dev/sde1(0)
  [raid_tdata_rimage_0] test   iwi-aor---  99.86g                                   /dev/sdg1(0)
  [raid_tdata_rimage_1] test   iwi-aor---  99.86g                                   /dev/sdb1(1)
  [raid_tdata_rimage_1] test   iwi-aor---  99.86g                                   /dev/sdd1(0)
  [raid_tdata_rimage_1] test   iwi-aor---  99.86g                                   /dev/sdf1(0)
  [raid_tdata_rimage_1] test   iwi-aor---  99.86g                                   /dev/sdh1(0)
  [raid_tdata_rmeta_0]  test   ewi-aor---   4.00m                                   /dev/sda1(0)
  [raid_tdata_rmeta_1]  test   ewi-aor---   4.00m                                   /dev/sdb1(0)
  [raid_tmeta]          test   ewi-ao----   4.00m                                   /dev/sda1(26)
[root@host-116 ~]# pvs
  PV         VG     Fmt  Attr PSize  PFree  
  /dev/sda1  test   lvm2 a--  24.99g      0 
  /dev/sdb1  test   lvm2 a--  24.99g   8.00m
  /dev/sdc1  test   lvm2 a--  24.99g      0 
  /dev/sdd1  test   lvm2 a--  24.99g      0 
  /dev/sde1  test   lvm2 a--  24.99g      0 
  /dev/sdf1  test   lvm2 a--  24.99g      0 
  /dev/sdg1  test   lvm2 a--  24.99g 100.00m
  /dev/sdh1  test   lvm2 a--  24.99g 100.00m

[root@host-116 ~]# lvremove test
Do you really want to remove active logical volume raid? [y/n]: y
  Logical volume "raid" successfully removed

Comment 3 Alasdair Kergon 2016-03-10 11:20:16 UTC

(need -vvvv from the failing command)

Comment 4 Alasdair Kergon 2016-03-10 11:25:38 UTC

Please attach the output from the failing:
  lvremove -vvvv test

Comment 7 Corey Marthaler 2016-03-10 17:18:21 UTC

Created attachment 1134964 [details]
lvremove -vvvv

Comment 10 Zdenek Kabelac 2016-03-15 16:55:31 UTC

Has got  broken by this upstream commit:

https://git.fedorahosted.org/cgit/lvm2.git/commit/?id=b64703401da1f4bef60579a0b3766c087fcfe96a


Working on bugfix.

Comment 11 Zdenek Kabelac 2016-03-15 22:34:55 UTC

And fixed by this commit upstream:

https://www.redhat.com/archives/lvm-devel/2016-March/msg00114.html

Somehow this case missed test suite.

Comment 13 Corey Marthaler 2016-03-16 20:58:48 UTC

Verified working again in the latest rpms.

2.6.32-616.el6.x86_64
lvm2-2.02.143-2.el6    BUILT: Wed Mar 16 08:30:42 CDT 2016
lvm2-libs-2.02.143-2.el6    BUILT: Wed Mar 16 08:30:42 CDT 2016
lvm2-cluster-2.02.143-2.el6    BUILT: Wed Mar 16 08:30:42 CDT 2016
udev-147-2.72.el6    BUILT: Tue Mar  1 06:14:05 CST 2016
device-mapper-1.02.117-2.el6    BUILT: Wed Mar 16 08:30:42 CDT 2016
device-mapper-libs-1.02.117-2.el6    BUILT: Wed Mar 16 08:30:42 CDT 2016
device-mapper-event-1.02.117-2.el6    BUILT: Wed Mar 16 08:30:42 CDT 2016
device-mapper-event-libs-1.02.117-2.el6    BUILT: Wed Mar 16 08:30:42 CDT 2016
device-mapper-persistent-data-0.6.2-0.1.rc5.el6    BUILT: Wed Feb 24 07:07:09 CST 2016
cmirror-2.02.143-2.el6    BUILT: Wed Mar 16 08:30:42 CDT 2016






[root@host-116 ~]# vgcreate test /dev/sd[abcdefgh]1        
  Physical volume "/dev/sda1" successfully created
  Physical volume "/dev/sdb1" successfully created
  Physical volume "/dev/sdc1" successfully created
  Physical volume "/dev/sdd1" successfully created
  Physical volume "/dev/sde1" successfully created
  Physical volume "/dev/sdf1" successfully created
  Physical volume "/dev/sdg1" successfully created
  Physical volume "/dev/sdh1" successfully created
  Volume group "test" successfully created

[root@host-116 ~]# lvcreate  --type raid1  -m 1 -L 100M -n raid test
  Logical volume "raid" created.

[root@host-116 ~]# lvconvert --thinpool test/raid --yes
  WARNING: Converting logical volume test/raid to pool's data volume.
  THIS WILL DESTROY CONTENT OF LOGICAL VOLUME (filesystem etc.)
  Converted test/raid to thin pool.

[root@host-116 ~]# lvextend -l100%FREE test/raid
  Extending 2 mirror images.
  Size of logical volume test/raid_tdata changed from 100.00 MiB (25 extents) to 99.86 GiB (25564 extents).
  Logical volume raid successfully resized.

[root@host-116 ~]# lvs -a -o +devices
  LV                    VG   Attr         LSize Pool Origin Data% Meta%  Cpy%Sync Devices
  [lvol0_pmspare]       test ewi-------   4.00m                                   /dev/sda1(27)
  raid                  test twi-a-tz--  99.86g             0.00  10.64           raid_tdata(0)
  [raid_tdata]          test rwi-aor---  99.86g                          100.00   raid_tdata_rimage_0(0),raid_tdata_rimage_1(0)
  [raid_tdata_rimage_0] test iwi-aor---  99.86g                                   /dev/sda1(1)
  [raid_tdata_rimage_0] test iwi-aor---  99.86g                                   /dev/sda1(28)
  [raid_tdata_rimage_0] test iwi-aor---  99.86g                                   /dev/sdc1(0)
  [raid_tdata_rimage_0] test iwi-aor---  99.86g                                   /dev/sde1(0)
  [raid_tdata_rimage_0] test iwi-aor---  99.86g                                   /dev/sdg1(0)
  [raid_tdata_rimage_1] test iwi-aor---  99.86g                                   /dev/sdb1(1)
  [raid_tdata_rimage_1] test iwi-aor---  99.86g                                   /dev/sdd1(0)
  [raid_tdata_rimage_1] test iwi-aor---  99.86g                                   /dev/sdf1(0)
  [raid_tdata_rimage_1] test iwi-aor---  99.86g                                   /dev/sdh1(0)
  [raid_tdata_rmeta_0]  test ewi-aor---   4.00m                                   /dev/sda1(0)
  [raid_tdata_rmeta_1]  test ewi-aor---   4.00m                                   /dev/sdb1(0)
  [raid_tmeta]          test ewi-ao----   4.00m                                   /dev/sda1(26)

[root@host-116 ~]# lvremove test
Do you really want to remove active logical volume raid? [y/n]: y
  Logical volume "raid" successfully removed

Comment 15 errata-xmlrpc 2016-05-11 01:20:53 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2016-0964.html

Note You need to log in before you can comment on or make changes to this bug.