Bug 1761474 - HEALTH_OK is reported with no managers (or OSDs) in the cluster
Summary: HEALTH_OK is reported with no managers (or OSDs) in the cluster
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Ceph Storage
Classification: Red Hat Storage
Component: RADOS
Version: 4.0
Hardware: Unspecified
OS: Unspecified
medium
high
Target Milestone: rc
: 4.1
Assignee: Neha Ojha
QA Contact: Manohar Murthy
Aron Gunn
URL:
Whiteboard:
Depends On:
Blocks: 1816167
TreeView+ depends on / blocked
 
Reported: 2019-10-14 13:12 UTC by Alfredo Deza
Modified: 2020-05-19 17:31 UTC (History)
12 users (show)

Fixed In Version: ceph-14.2.8-3.el8, ceph-14.2.8-3.el7
Doc Type: Bug Fix
Doc Text:
.A health warning status is reported when no Ceph Managers or OSDs are in the storage cluster In previous {storage-product} releases, the storage cluster health status was `HEALTH_OK` even though there were no Ceph Managers or OSDs in the storage cluster. With this release, this health status has changed, and will report a health warning if a storage cluster is not set up with Ceph Managers, or if all the Ceph Managers go down. Because {storage-product} heavily relies on the Ceph Manager to deliver key features, it is not advisable to run a Ceph storage cluster without Ceph Managers or OSDs.
Clone Of:
Environment:
Last Closed: 2020-05-19 17:31:11 UTC
Embargoed:
hyelloji: needinfo-

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Ceph Project Bug Tracker 38942 0 None None None 2019-10-14 13:12:32 UTC
Red Hat Product Errata RHSA-2020:2231 0 None None None 2020-05-19 17:31:29 UTC

Description Alfredo Deza 2019-10-14 13:12:33 UTC 
Description of problem: When a cluster has no OSDs or no managers health is reported as HEALTH_OK

  cluster:
    id:     97ce8ce8-811c-46ce-9682-ce535d9859ab
    health: HEALTH_OK

  services:
    mon: 3 daemons, quorum a,b,c (age 11m)
    mgr: no daemons active
    osd: 0 osds: 0 up, 0 in

  data:
    pools:   0 pools, 0 pgs
    objects: 0 objects, 0 B
    usage:   0 B used, 0 B / 0 B avail
    pgs:     


Version-Release number of selected component (if applicable): 14.2.X (any including the latest 14.2.4)


How reproducible: all the time


Steps to Reproduce: 
1. Deploy Ceph with no managers or OSDs
2.
3.

Actual results: report is HEALTH_OK


Expected results: report is HEALTH_WARN or HEALTH_ERR




Additional info:
Comment 1 RHEL Program Management 2019-10-14 13:12:39 UTC 
Please specify the severity of this bug. Severity is defined here:
https://bugzilla.redhat.com/page.cgi?id=fields.html#bug_severity.
Comment 2 Yaniv Kaul 2019-10-14 13:44:56 UTC 
Severity?
Comment 5 Boris Ranto 2019-10-14 16:07:44 UTC 
This is more of a core ceph/rados thing, re-targetting.
Comment 6 Yaniv Kaul 2020-01-08 14:42:25 UTC 
Has anyone looked at this? I assume it's because the mgr is not available?
Comment 7 Alfredo Deza 2020-01-08 15:08:29 UTC 
I don't know if anyone has looked at this and I am not sure why this is happening.
Comment 8 Josh Durgin 2020-01-08 15:40:07 UTC 
This was by design when ceph-mgr was created - the idea at the time was to avoid spurious warnings during cluster setup. and at that point ceph-mgr was not necessary for much functionality. At this point, ceph-mgr is doing much more. Currently the health status is only affected if there was ever a mgr running - it seems removing this condition so you get an error after there's no mgr for some time would resolve this.

Moving to 4.1 since this is not a blocker for 4.0 (same behavior as 3.x).
Comment 10 Josh Durgin 2020-03-23 20:45:40 UTC 
included in 14.2.8 rebase
Comment 21 errata-xmlrpc 2020-05-19 17:31:11 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.

https://access.redhat.com/errata/RHSA-2020:2231
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