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Bug 1158537 - Removing a resource from a group also removes constraints mentioning that group
Summary: Removing a resource from a group also removes constraints mentioning that group
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: pcs
Version: 7.1
Hardware: Unspecified
OS: Unspecified
high
medium
Target Milestone: rc
: ---
Assignee: Tomas Jelinek
QA Contact: cluster-qe@redhat.com
URL:
Whiteboard:
Depends On:
Blocks: 1247979
TreeView+ depends on / blocked
 
Reported: 2014-10-29 15:13 UTC by Tomas Jelinek
Modified: 2019-10-10 09:27 UTC (History)
5 users (show)

Fixed In Version: pcs-0.9.140-1.el7
Doc Type: Bug Fix
Doc Text:
Cause: User removes a resource from a group. Consequence: Constraints mentioning the group are removed. Fix: Remove the constraints only when there are no resources left in the group and therefore the group is going to be removed. Result: Constraints mentioning the group are preserved.
Clone Of:
: 1247979 (view as bug list)
Environment:
Last Closed: 2015-11-19 09:33:03 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
proposed fix (4.06 KB, patch)
2015-02-20 13:17 UTC, Tomas Jelinek 		no flags Details | Diff
View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2015:2290 0 normal SHIPPED_LIVE Moderate: pcs security, bug fix, and enhancement update 2015-11-19 09:43:53 UTC

Description Tomas Jelinek 2014-10-29 15:13:05 UTC 
Description of problem:
Removing a resource from a group also removes constraints mentioning that group.


Version-Release number of selected component (if applicable):
pcs-0.9.135


How reproducible:
always


Steps to Reproduce:
[root@rh70-node1:~]# pcs resource create dummy1 Dummy --group=dummies
[root@rh70-node1:~]# pcs resource create dummy2 Dummy --group=dummies
[root@rh70-node1:~]# pcs resource
 Resource Group: dummies
     dummy1     (ocf::heartbeat:Dummy): Started 
     dummy2     (ocf::heartbeat:Dummy): Started 
[root@rh70-node1:~]# pcs constraint location dummies rh70-node1=100
[root@rh70-node1:~]# pcs constraint
Location Constraints:
  Resource: dummies
    Enabled on: rh70-node1 (score:100)
Ordering Constraints:
Colocation Constraints:
[root@rh70-node1:~]# pcs resource group remove dummies dummy2
Removing Constraint - location-dummies-rh70-node1-100
[root@rh70-node1:~]# pcs constraint
Location Constraints:
Ordering Constraints:
Colocation Constraints:


Actual results:
Constraint related to the group has been removed.


Expected results:
Constraint related to the group is preserved.


Additional info:
github issue: https://github.com/feist/pcs/issues/46
Comment 1 Tomas Jelinek 2015-02-20 13:17:30 UTC 
Created attachment 993906 [details]
proposed fix
Comment 3 Tomas Jelinek 2015-06-04 14:24:29 UTC 
Before Fix:
[root@rh71-node1 ~]# rpm -q pcs
pcs-0.9.137-13.el7_1.2.x86_64
[root@rh71-node1:~]# pcs resource create dummy1 Dummy --group=dummies
[root@rh71-node1:~]# pcs resource create dummy2 Dummy --group=dummies
[root@rh71-node1:~]# pcs resource
 Resource Group: dummies
     dummy1     (ocf::heartbeat:Dummy): Started 
     dummy2     (ocf::heartbeat:Dummy): Started 
[root@rh71-node1:~]# pcs constraint location dummies prefers rh71-node1=100
[root@rh71-node1:~]# pcs constraint
Location Constraints:
  Resource: dummies
    Enabled on: rh71-node1 (score:100)
Ordering Constraints:
Colocation Constraints:
[root@rh71-node1:~]# pcs resource group remove dummies dummy2
Removing Constraint - location-dummies-rh71-node1-100
[root@rh71-node1:~]# pcs constraint
Location Constraints:
Ordering Constraints:
Colocation Constraints:



After Fix:
[root@rh71-node1:~]# rpm -q pcs
pcs-0.9.140-1.el6.x86_64
[root@rh71-node1:~]# pcs resource create dummy1 Dummy --group=dummies
[root@rh71-node1:~]# pcs resource create dummy2 Dummy --group=dummies
[root@rh71-node1:~]# pcs resource
 Resource Group: dummies
     dummy1     (ocf::heartbeat:Dummy): Started rh71-node3 
     dummy2     (ocf::heartbeat:Dummy): Started rh71-node3 
[root@rh71-node1:~]# pcs constraint location dummies prefers rh71-node1=100
[root@rh71-node1:~]# pcs constraint
Location Constraints:
  Resource: dummies
    Enabled on: rh71-node1 (score:100)
Ordering Constraints:
Colocation Constraints:
[root@rh71-node1:~]# pcs resource group remove dummies dummy2
[root@rh71-node1:~]# pcs constraint
Location Constraints:
  Resource: dummies
    Enabled on: rh71-node1 (score:100)
Ordering Constraints:
Colocation Constraints:
Comment 8 errata-xmlrpc 2015-11-19 09:33:03 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/RHSA-2015-2290.html
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