Bug 2182383 - Both pacemaker-controld and pacemaker-schedulerd metadata contains 'no-quorum-policy' cluster property
Summary: Both pacemaker-controld and pacemaker-schedulerd metadata contains 'no-quorum...
Keywords:
Status: NEW
Alias: None
Product: Red Hat Enterprise Linux 9
Classification: Red Hat
Component: pacemaker
Version: 9.2
Hardware: Unspecified
OS: Unspecified
low
low
Target Milestone: rc
: ---
Assignee: Ken Gaillot
QA Contact: cluster-qe
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2023-03-28 13:54 UTC by Miroslav Lisik
Modified: 2023-08-10 15:41 UTC (History)
2 users (show)

Fixed In Version:
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Last Closed:
Type: Feature Request
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Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker RHELPLAN-153272 0 None None None 2023-03-28 13:55:20 UTC

Internal Links: 2217850

Description Miroslav Lisik 2023-03-28 13:54:34 UTC
Description of problem:
Both pacemaker-controld and pacemaker-schedulerd metadata contains 'no-quorum-policy' cluster property.

Version-Release number of selected component (if applicable):
pacemaker-2.1.5-7.el9

How reproducible:
always



Steps to Reproduce:
/usr/libexec/pacemaker/pacemaker-controld metadata | grep no-quorum-policy
/usr/libexec/pacemaker/pacemaker-schedulerd metadata | grep no-quorum-policy


Actual results:
Cluster property metadata for 'no-quorum-policy' is defined on both places.

Expected results:
Cluster property metadata for 'no-quorum-policy' is defined only in one deamon metadata.

Additional info:

Comment 1 Ken Gaillot 2023-03-28 14:23:30 UTC
This is not a bug per the current Pacemaker design -- each daemon defines metadata for the cluster options that it uses, and certain options are used by both the controller and scheduler. Then "enable-acl" and "cluster-ipc-limit" are used by the CIB manager (which doesn't have a metadata option) but not the controller or scheduler, so they aren't documented in metadata anywhere.

Of course, that's not an ideal design, so we can use this bz as a feature request for a single comprehensive list of cluster option metadata, similar to Bug 2163699 for meta-attributes.

Comment 2 Tomas Jelinek 2023-03-28 14:51:49 UTC
(In reply to Ken Gaillot from comment #1)
> Then "enable-acl" and "cluster-ipc-limit" are used by the CIB manager (which doesn't have a metadata option) but not the controller or scheduler, so they aren't documented in metadata anywhere.

They are documented in metadata in pacemaker-based. Pcs reads and processes metadata from pacemaker-based, otherwise it wouldn't consider "enable-acl" and "cluster-ipc-limit" to be allowed cluster properties and would require --force to be specified for them to be set.

> This is not a bug per the current Pacemaker design -- each daemon defines metadata for the cluster options that it uses, and certain options are used by both the controller and scheduler.

Just to put this bz into context:
The problem is that 'pcs property describe' then prints "no-quorum-policy" twice. And when validating a value of the property, pcs chooses one of the duplicate definitions. That's not a big deal now, but if the definitions ever start to differ, it will become a problem.

Comment 3 Ken Gaillot 2023-03-28 14:58:02 UTC
(In reply to Tomas Jelinek from comment #2)
> (In reply to Ken Gaillot from comment #1)
> > Then "enable-acl" and "cluster-ipc-limit" are used by the CIB manager (which doesn't have a metadata option) but not the controller or scheduler, so they aren't documented in metadata anywhere.
> 
> They are documented in metadata in pacemaker-based. Pcs reads and processes
> metadata from pacemaker-based, otherwise it wouldn't consider "enable-acl"
> and "cluster-ipc-limit" to be allowed cluster properties and would require
> --force to be specified for them to be set.

Huh, I always thought it didn't for some reason. Well, that's good :)
 
> > This is not a bug per the current Pacemaker design -- each daemon defines metadata for the cluster options that it uses, and certain options are used by both the controller and scheduler.
> 
> Just to put this bz into context:
> The problem is that 'pcs property describe' then prints "no-quorum-policy"
> twice. And when validating a value of the property, pcs chooses one of the
> duplicate definitions. That's not a big deal now, but if the definitions
> ever start to differ, it will become a problem.

Yep, it's just a limitation of the current design. They should always be identical (it would be a bug if they weren't).


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