Bug 2028693

Summary:	RHCS 4.x to 5.x upgrade - Cephadm adopt should choose the correct value for autotune_memory_target_ratio
Product:	[Red Hat Storage] Red Hat Ceph Storage	Reporter:	Vikhyat Umrao <vumrao>
Component:	Ceph-Ansible	Assignee:	Guillaume Abrioux <gabrioux>
Status:	CLOSED ERRATA	QA Contact:	Rajendra Khambadkar <rkhambad>
Severity:	high	Docs Contact:	Akash Raj <akraj>
Priority:	unspecified
Version:	5.0	CC:	akraj, aschoen, ceph-eng-bugs, gabrioux, gmeno, mgowri, nthomas, tserlin, vereddy, ykaul
Target Milestone:	---
Target Release:	5.2
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	ceph-ansible-6.0.27.0-1.el8cp	Doc Type:	Bug Fix
Doc Text:	.Correct value is set for `autotune_memory_target_ratio` when migrating to `cephadm` Previously, when migrating to `cephadm`, nothing would set a proper value for `autotune_memory_target_ratio` depending on the kind of deployment, HCI or non_HCI. Due to this, no ratio was set and there would be no difference between the two deployments. With this fix, the `cephadm-adopt playbook` sets the right ratio depending on the kind of deployment and the right value is set for `autotune_memory_target_ratio` parameter.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-08-09 17:36:46 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:
Bug Depends On:
Bug Blocks:	2102272

Description Vikhyat Umrao 2021-12-02 23:25:19 UTC

Description of problem:

RHCS 4.x to 5.x upgrade - Cephadm adopt should choose the correct value for autotune_memory_target_ratio

With ceph-ansible[1] feature we have a method to choose HCI and non-HCI ratio we need to make sure similarly we set the correct when the ceph clusters will be upgraded.

When the HCI cluster is being upgraded please set the correct value for autotune_memory_target_ratio as 0.2 during cephadm adopt and if the non-HCI cluster is being upgraded I hope the default is non-hci so it should be fine.

[1] https://github.com/ceph/ceph-ansible/pull/3113

Comment 16 errata-xmlrpc 2022-08-09 17:36:46 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 (Moderate: Red Hat Ceph Storage Security, Bug Fix, and Enhancement Update), 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://access.redhat.com/errata/RHSA-2022:5997