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Bug 1107612

Summary:

'resource delete' behaviour confusing for clone of group with more than one resource

Product:

Red Hat Enterprise Linux 6

Reporter:

michal novacek <mnovacek>

Component:

pcs

Assignee:

Tomas Jelinek <tojeline>

Status:

CLOSED ERRATA

QA Contact:

Cluster QE <mspqa-list>

Severity:

medium

Docs Contact:

Priority:

medium

Version:

6.6

CC:

cfeist, cluster-maint, jherrman, rsteiger, tojeline

Target Milestone:

pre-dev-freeze

Target Release:

6.6

Hardware:

Unspecified

OS:

Unspecified

Whiteboard:

Fixed In Version:

pcs-0.9.123-4.el6

Doc Type:

Bug Fix

Doc Text:

Previously, the pcs utility did not properly handle clones of a group when removing resources from the cloned group. As a consequence, the "pcs resource unclone" and "pcs resource delete" commands removed only the first resource in a group when they were supposed to remove the entire resource group. With this update, pcs handles resources in cloned groups correctly and removing cloned resource groups works as expected.

Story Points:

---

Clone Of:

Environment:

Last Closed:

2014-10-14 07:22:11 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:

Attachments:

Description	Flags
proposed fix 1/2	none
proposed fix 2/2	none

Description michal novacek 2014-06-10 11:03:02 UTC

Description of problem: 
The behaviour of the 'pcs resource delete' is confusing for cloned group of several resources. Only first resource of the group is removed which is not correct. It should either remove all or none (and suggest other ways on how it should be done).

Version-Release number of selected component (if applicable):
resource-agents-3.9.5-26.el7.x86_64
pcs-0.9.115-32.el7.x86_64

How reproducible: always


Steps to Reproduce:
1. for a in 1 2 3; do pcs resource create dummy-$a Dummy --group dummies; done
2. pcs resource clone dummies
3. pcs resource delete dummies-clone

Actual results: only first resource in a cloned group removed

Expected results: clone, group and all of its resources removed

Additional info:
[root@virt-066 ~]# for a in 1 2 3; do pcs resource create dummy-$a Dummy --group dummies; done
[root@virt-066 ~]# pcs resource clone dummies
[root@virt-066 ~]# pcs resource show dummies-clone
 Clone: dummies-clone
  Group: dummies
   Resource: dummy-1 (class=ocf provider=heartbeat type=Dummy)
    Operations: start interval=0s timeout=20 (dummy-1-start-timeout-20)
                stop interval=0s timeout=20 (dummy-1-stop-timeout-20)
                monitor interval=10 timeout=20 (dummy-1-monitor-interval-10)
   Resource: dummy-2 (class=ocf provider=heartbeat type=Dummy)
    Operations: start interval=0s timeout=20 (dummy-2-start-timeout-20)
                stop interval=0s timeout=20 (dummy-2-stop-timeout-20)
                monitor interval=10 timeout=20 (dummy-2-monitor-interval-10)
   Resource: dummy-3 (class=ocf provider=heartbeat type=Dummy)
    Operations: start interval=0s timeout=20 (dummy-3-start-timeout-20)
                stop interval=0s timeout=20 (dummy-3-stop-timeout-20)
                monitor interval=10 timeout=20 (dummy-3-monitor-interval-10)
[root@virt-066 ~]# pcs resource delete dummies-clone
Attempting to stop: dummy-1...Stopped
Deleting Resource - dummy-1
[root@virt-066 ~]# pcs resource show dummies-clone
 Clone: dummies-clone
  Group: dummies
   Resource: dummy-2 (class=ocf provider=heartbeat type=Dummy)
    Operations: start interval=0s timeout=20 (dummy-2-start-timeout-20)
                stop interval=0s timeout=20 (dummy-2-stop-timeout-20)
                monitor interval=10 timeout=20 (dummy-2-monitor-interval-10)
   Resource: dummy-3 (class=ocf provider=heartbeat type=Dummy)
    Operations: start interval=0s timeout=20 (dummy-3-start-timeout-20)
                stop interval=0s timeout=20 (dummy-3-stop-timeout-20)
                monitor interval=10 timeout=20 (dummy-3-monitor-interval-10)
[root@virt-066 ~]# pcs resource delete dummies-clone
Attempting to stop: dummy-2...Stopped
Deleting Resource - dummy-2
[root@virt-066 ~]# pcs resource show dummies-clone
 Clone: dummies-clone
  Group: dummies
   Resource: dummy-3 (class=ocf provider=heartbeat type=Dummy)
    Operations: start interval=0s timeout=20 (dummy-3-start-timeout-20)
                stop interval=0s timeout=20 (dummy-3-stop-timeout-20)
                monitor interval=10 timeout=20 (dummy-3-monitor-interval-10)
[root@virt-066 ~]# pcs resource delete dummies-clone
Attempting to stop: dummy-3...Stopped
Deleting Resource (and group and clone) - dummy-3

Comment 2 Radek Steiger 2014-06-12 14:44:38 UTC

Same with Master/Slave resources:


[root@virt-021 sts6]# for a in 1 2 3; do pcs resource create dummy-$a Stateful --group dummies; done
[root@virt-021 sts6]# pcs resource master dummies
[root@virt-021 sts6]# pcs resource --full
 Master: dummies-master
  Group: dummies
   Resource: dummy-1 (class=ocf provider=pacemaker type=Stateful)
    Operations: start interval=0s timeout=20 (dummy-1-start-timeout-20)
                stop interval=0s timeout=20 (dummy-1-stop-timeout-20)
                monitor interval=10 role=Master timeout=20 (dummy-1-monitor-interval-10-role-Master)
                monitor interval=10 role=Slave timeout=20 (dummy-1-monitor-interval-10-role-Slave)
   Resource: dummy-2 (class=ocf provider=pacemaker type=Stateful)
    Operations: start interval=0s timeout=20 (dummy-2-start-timeout-20)
                stop interval=0s timeout=20 (dummy-2-stop-timeout-20)
                monitor interval=10 role=Master timeout=20 (dummy-2-monitor-interval-10-role-Master)
                monitor interval=10 role=Slave timeout=20 (dummy-2-monitor-interval-10-role-Slave)
   Resource: dummy-3 (class=ocf provider=pacemaker type=Stateful)
    Operations: start interval=0s timeout=20 (dummy-3-start-timeout-20)
                stop interval=0s timeout=20 (dummy-3-stop-timeout-20)
                monitor interval=10 role=Master timeout=20 (dummy-3-monitor-interval-10-role-Master)
                monitor interval=10 role=Slave timeout=20 (dummy-3-monitor-interval-10-role-Slave)
[root@virt-021 sts6]# 
[root@virt-021 sts6]# pcs resource delete dummies-master
Attempting to stop: dummy-1...Stopped
Deleting Resource - dummy-1
[root@virt-021 sts6]# pcs resource --full
 Master: dummies-master
  Group: dummies
   Resource: dummy-2 (class=ocf provider=pacemaker type=Stateful)
    Operations: start interval=0s timeout=20 (dummy-2-start-timeout-20)
                stop interval=0s timeout=20 (dummy-2-stop-timeout-20)
                monitor interval=10 role=Master timeout=20 (dummy-2-monitor-interval-10-role-Master)
                monitor interval=10 role=Slave timeout=20 (dummy-2-monitor-interval-10-role-Slave)
   Resource: dummy-3 (class=ocf provider=pacemaker type=Stateful)
    Operations: start interval=0s timeout=20 (dummy-3-start-timeout-20)
                stop interval=0s timeout=20 (dummy-3-stop-timeout-20)
                monitor interval=10 role=Master timeout=20 (dummy-3-monitor-interval-10-role-Master)
                monitor interval=10 role=Slave timeout=20 (dummy-3-monitor-interval-10-role-Slave)

Comment 4 Tomas Jelinek 2014-06-17 14:10:13 UTC

Created attachment 909604 [details]
proposed fix 1/2

Comment 5 Tomas Jelinek 2014-06-17 14:10:35 UTC

Created attachment 909605 [details]
proposed fix 2/2

Comment 7 Chris Feist 2014-07-03 22:30:59 UTC

Before Fix:

[root@bid-06 ~]# rpm -q pcs
pcs-0.9.123-3.el6.x86_64
[root@bid-06 ~]# pcs resource create D1 Dummy --group dg
[root@bid-06 ~]# pcs resource create D2 Dummy --group dg
[root@bid-06 ~]# pcs resource create D3 Dummy --group dg
[root@bid-06 ~]# pcs resource clone dg
[root@bid-06 ~]# pcs resource
 Clone Set: dg-clone [dg]
     Started: [ bid-05 bid-06 ]
[root@bid-06 ~]# pcs resource --full
 Clone: dg-clone
  Group: dg
   Resource: D1 (class=ocf provider=heartbeat type=Dummy)
    Operations: start interval=0s timeout=20 (D1-start-timeout-20)
                stop interval=0s timeout=20 (D1-stop-timeout-20)
                monitor interval=10 timeout=20 (D1-monitor-interval-10)
   Resource: D2 (class=ocf provider=heartbeat type=Dummy)
    Operations: start interval=0s timeout=20 (D2-start-timeout-20)
                stop interval=0s timeout=20 (D2-stop-timeout-20)
                monitor interval=10 timeout=20 (D2-monitor-interval-10)
   Resource: D3 (class=ocf provider=heartbeat type=Dummy)
    Operations: start interval=0s timeout=20 (D3-start-timeout-20)
                stop interval=0s timeout=20 (D3-stop-timeout-20)
                monitor interval=10 timeout=20 (D3-monitor-interval-10)
[root@bid-06 ~]# pcs resource delete dg-clone
Attempting to stop: D1...Stopped
Deleting Resource - D1
[root@bid-06 ~]# pcs resource --full
 Clone: dg-clone
  Group: dg
   Resource: D2 (class=ocf provider=heartbeat type=Dummy)
    Operations: start interval=0s timeout=20 (D2-start-timeout-20)
                stop interval=0s timeout=20 (D2-stop-timeout-20)
                monitor interval=10 timeout=20 (D2-monitor-interval-10)
   Resource: D3 (class=ocf provider=heartbeat type=Dummy)
    Operations: start interval=0s timeout=20 (D3-start-timeout-20)
                stop interval=0s timeout=20 (D3-stop-timeout-20)
                monitor interval=10 timeout=20 (D3-monitor-interval-10)


D2, D3 and dg should all have been deleted.

After Fix:
[root@bid-06 pcs]# rpm -q pcs
pcs-0.9.123-4.el6.x86_64
[root@bid-06 pcs]# pcs resource create D1 Dummy --group dg
[root@bid-06 pcs]# pcs resource create D2 Dummy --group dg
[root@bid-06 pcs]# pcs resource create D3 Dummy --group dg
[root@bid-06 pcs]# pcs resource clone dg
[root@bid-06 pcs]# pcs resource --full
 Clone: dg-clone
  Group: dg
   Resource: D1 (class=ocf provider=heartbeat type=Dummy)
    Operations: start interval=0s timeout=20 (D1-start-timeout-20)
                stop interval=0s timeout=20 (D1-stop-timeout-20)
                monitor interval=10 timeout=20 (D1-monitor-interval-10)
   Resource: D2 (class=ocf provider=heartbeat type=Dummy)
    Operations: start interval=0s timeout=20 (D2-start-timeout-20)
                stop interval=0s timeout=20 (D2-stop-timeout-20)
                monitor interval=10 timeout=20 (D2-monitor-interval-10)
   Resource: D3 (class=ocf provider=heartbeat type=Dummy)
    Operations: start interval=0s timeout=20 (D3-start-timeout-20)
                stop interval=0s timeout=20 (D3-stop-timeout-20)
                monitor interval=10 timeout=20 (D3-monitor-interval-10)
[root@bid-06 pcs]# pcs resource delete dg-clone
Removing group: dg (and all resources within group)
Stopping all resources in group: dg...
Deleting Resource - D1
Deleting Resource - D2
Deleting Resource (and group and clone) - D3
[root@bid-06 pcs]# pcs resource --full
[root@bid-06 pcs]#

Comment 10 errata-xmlrpc 2014-10-14 07:22:11 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.

http://rhn.redhat.com/errata/RHBA-2014-1526.html