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Bug 1148960

Summary: exclusively activated stacked snaps on clustered VGs can have problems being deactivated
Product: Red Hat Enterprise Linux 6 Reporter: Corey Marthaler <cmarthal>
Component: lvm2Assignee: Zdenek Kabelac <zkabelac>
lvm2 sub component: Snapshots (RHEL6) QA Contact: cluster-qe <cluster-qe>
Status: CLOSED WONTFIX Docs Contact:
Severity: low    
Priority: unspecified CC: agk, heinzm, jbrassow, msnitzer, prajnoha, prockai, zkabelac
Version: 6.6   
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: Environment:
Last Closed: 2017-12-06 12:19:27 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:

Description Corey Marthaler 2014-10-02 18:28:16 UTC 
Description of problem:

[root@taft-01 ~]# cman_tool nodes
Node  Sts   Inc   Joined               Name
   1   M    332   2014-10-01 16:50:04  taft-01
   2   M    344   2014-10-01 16:50:04  taft-02
   4   M    344   2014-10-01 16:50:04  taft-04

[root@taft-01 ~]# cman_tool services
fence domain
member count  3
victim count  0
victim now    0
master nodeid 2
wait state    none
members       1 2 4 

dlm lockspaces
name          clvmd
id            0x4104eefa
flags         0x00000000 
change        member 3 joined 1 remove 0 failed 0 seq 3,3
members       1 2 4 

[root@taft-01 ~]# lvs
  LV          VG            Attr       LSize  Pool Origin Data%  Meta%
  POOL        snapper_thinp twi-a-tz--  1.00g             0.00   0.07
  origin      snapper_thinp Vwi-a-tz--  1.00g POOL        0.00
  other1      snapper_thinp Vwi-a-tz--  1.00g POOL        0.00
  other2      snapper_thinp Vwi-a-tz--  1.00g POOL        0.00
  other3      snapper_thinp Vwi-a-tz--  1.00g POOL        0.00
  other4      snapper_thinp Vwi-a-tz--  1.00g POOL        0.00
  other5      snapper_thinp Vwi-a-tz--  1.00g POOL        0.00
  snap_level1 snapper_thinp Vwi-a-tz-k  1.00g POOL origin 0.00

[root@taft-01 ~]# pvcreate /dev/snapper_thinp/origin
  Physical volume "/dev/snapper_thinp/origin" successfully created

[root@taft-01 ~]# vgcreate snapper_thinp_stack /dev/snapper_thinp/origin
  Clustered volume group "snapper_thinp_stack" successfully created

[root@taft-01 ~]# vgs
  VG                  #PV #LV #SN Attr   VSize    VFree   
  snapper_thinp         5   8   0 wz--nc    1.22t    1.22t
  snapper_thinp_stack   1   0   0 wz--nc 1020.00m 1020.00m

[root@taft-01 ~]# lvcreate --activate ey -L 100M snapper_thinp_stack -n origin
  Logical volume "origin" created

[root@taft-01 ~]# lvcreate --activate ey -s /dev/snapper_thinp_stack/origin -n snap_level2 -L 50M
  Rounding up size to full physical extent 52.00 MiB
  Logical volume "snap_level2" created

[root@taft-01 ~]# lvs -a -o +devices
  LV              VG                  Attr       LSize   Pool Origin Data%  Meta% Devices
  POOL            snapper_thinp       twi-a-tz--   1.00g             0.02   0.07  POOL_tdata(0)
  [POOL_tdata]    snapper_thinp       Twi-ao----   1.00g                          /dev/mapper/mpathdp1(25)
  [POOL_tmeta]    snapper_thinp       ewi-ao---- 100.00m                          /dev/mapper/mpathbp1(0)
  [lvol0_pmspare] snapper_thinp       ewi------- 100.00m                          /dev/mapper/mpathdp1(0)
  origin          snapper_thinp       Vwi-aotz--   1.00g POOL        0.02
  other1          snapper_thinp       Vwi-a-tz--   1.00g POOL        0.00
  other2          snapper_thinp       Vwi-a-tz--   1.00g POOL        0.00
  other3          snapper_thinp       Vwi-a-tz--   1.00g POOL        0.00
  other4          snapper_thinp       Vwi-a-tz--   1.00g POOL        0.00
  other5          snapper_thinp       Vwi-a-tz--   1.00g POOL        0.00
  snap_level1     snapper_thinp       Vwi-a-tz-k   1.00g POOL origin 0.00
  origin          snapper_thinp_stack owi-a-s--- 100.00m                          /dev/snapper_thinp/origin(0)
  snap_level2     snapper_thinp_stack swi-a-s---  52.00m      origin 0.00         /dev/snapper_thinp/origin(25)

[root@taft-01 ~]# lvremove -f /dev/snapper_thinp_stack/snap_level2
  Error locking on node taft-02: Volume group for uuid not found: C7vDhMN3hS4NcClkLz8efCTv2Dyw3WgZBm1IfZ4ZKm7kQwkqx1jW5ecLccp1yDI2
  Error locking on node taft-04: Volume group for uuid not found: C7vDhMN3hS4NcClkLz8efCTv2Dyw3WgZBm1IfZ4ZKm7kQwkqx1jW5ecLccp1yDI2
  Failed to activate snap_level2.
  Releasing activation in critical section.
[root@taft-01 ~]# echo $?
5

# Works now with a deactivation of the origin volume
[root@taft-01 ~]# lvchange -an snapper_thinp_stack/origin
[root@taft-01 ~]# lvremove -f /dev/snapper_thinp_stack/snap_level2
  Logical volume "snap_level2" successfully removed


Version-Release number of selected component (if applicable):
2.6.32-502.el6.x86_64
lvm2-2.02.111-2.el6    BUILT: Mon Sep  1 06:46:43 CDT 2014
lvm2-libs-2.02.111-2.el6    BUILT: Mon Sep  1 06:46:43 CDT 2014
lvm2-cluster-2.02.111-2.el6    BUILT: Mon Sep  1 06:46:43 CDT 2014
udev-147-2.57.el6    BUILT: Thu Jul 24 08:48:47 CDT 2014
device-mapper-1.02.90-2.el6    BUILT: Mon Sep  1 06:46:43 CDT 2014
device-mapper-libs-1.02.90-2.el6    BUILT: Mon Sep  1 06:46:43 CDT 2014
device-mapper-event-1.02.90-2.el6    BUILT: Mon Sep  1 06:46:43 CDT 2014
device-mapper-event-libs-1.02.90-2.el6    BUILT: Mon Sep  1 06:46:43 CDT 2014
device-mapper-persistent-data-0.3.2-1.el6    BUILT: Fri Apr  4 08:43:06 CDT 2014
cmirror-2.02.111-2.el6    BUILT: Mon Sep  1 06:46:43 CDT 2014
Comment 6 Jan Kurik 2017-12-06 12:19:27 UTC 
Red Hat Enterprise Linux 6 is in the Production 3 Phase. During the Production 3 Phase, Critical impact Security Advisories (RHSAs) and selected Urgent Priority Bug Fix Advisories (RHBAs) may be released as they become available.

The official life cycle policy can be reviewed here:

http://redhat.com/rhel/lifecycle

This issue does not meet the inclusion criteria for the Production 3 Phase and will be marked as CLOSED/WONTFIX. If this remains a critical requirement, please contact Red Hat Customer Support to request a re-evaluation of the issue, citing a clear business justification. Note that a strong business justification will be required for re-evaluation. Red Hat Customer Support can be contacted via the Red Hat Customer Portal at the following URL:

https://access.redhat.com/