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Bug 2027440

Summary: Add 'time-sync.target' to systemd After/Wants for Ceph Unit Files
Product: [Red Hat Storage] Red Hat Ceph Storage Reporter: Michael J. Kidd <linuxkidd>
Component: Ceph-AnsibleAssignee: Guillaume Abrioux <gabrioux>
Status: CLOSED ERRATA QA Contact: Ameena Suhani S H <amsyedha>
Severity: low Docs Contact:
Priority: low    
Version: 4.2CC: aschoen, ceph-eng-bugs, gjose, gmeno, linuxkidd, lithomas, nthomas, tserlin, vereddy, vumrao, ykaul
Target Milestone: ---   
Target Release: 4.3z1   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: ceph-ansible-4.0.70.5-1.el8cp, ceph-ansible-4.0.70.5-1.el7cp Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2022-09-22 11:21:04 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 Michael J. Kidd 2021-11-29 16:47:55 UTC 
Description of problem:
RHCS 4.x does not have 'time-sync.target' in systemd unit files After or Wants lines.  This allows Ceph services to start before time sync and can lead to unpredictable / unstable service interactions.

Version-Release number of selected component (if applicable):
RHCS 4.x

How reproducible:
100%

Steps to Reproduce:
1. Set BIOS time to a drastically wrong time ( as could happen after a motherboard swap )
2. Boot Ceph node

Actual results:
- Ceph services start with drastically wrong system time
- Ceph services are unable to properly start/join the cluster for normal operations

Expected results:
- Ceph services wait until time-sync is complete
- Then start with proper system time and operate normally

Additional info:
Wants/After entries of 'time-sync.target' are already part of RHCS 5.  Request backport of these entries to RHCS 4 for more predictable system behavior after hardware changes.

See:
https://github.com/ceph/ceph/blob/v16.2.0/src/cephadm/cephadm#L2969-L2970
Comment 7 Ameena Suhani S H 2022-05-23 20:18:25 UTC 
Verified that time-sync.target is active
# rpm -qa|grep ansi
ansible-2.9.27-1.el8ae.noarch
ceph-ansible-4.0.70.5-1.el8cp.noarch
Comment 11 errata-xmlrpc 2022-09-22 11:21:04 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 (Red Hat Ceph Storage 4.3 Bug Fix 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/RHBA-2022:6684