Bug 2084541

Summary:	CephClusterReadOnly alert is not getting triggered
Product:	[Red Hat Storage] Red Hat OpenShift Data Foundation	Reporter:	Filip Balák <fbalak>
Component:	odf-managed-service	Assignee:	Kaustav Majumder <kmajumde>
Status:	ASSIGNED ---	QA Contact:	Filip Balák <fbalak>
Severity:	high	Docs Contact:
Priority:	high
Version:	4.10	CC:	aeyal, dbindra, kmajumde, odf-bz-bot, resoni
Target Milestone:	---	Keywords:	Tracking
Target Release:	---	Flags:	resoni: needinfo? (kmajumde)
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:
Clones:	2236143 (view as bug list)		Environment:
Last Closed:		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:	2136039, 2084014
Bug Blocks:	2236143

Description Filip Balák 2022-05-12 12:01:48 UTC

Description of problem:
There is no CephClusterReadOnly alert triggered when cluster reaches 85% of its utilization

Version-Release number of selected component (if applicable):
ocs-operator.v4.10.0
OCP 4.10.8

How reproducible:
1/1

Steps to Reproduce:
1. Deploy provider and consumer with 4 TiB cluster on ROSA (this is not reproducible on larger clusters: https://bugzilla.redhat.com/show_bug.cgi?id=2084014)
2. Set notification emails during deployment.
3. Fully utilize cluster capacity.
4. Check email.

Actual results:
There is an email:

Your storage cluster utilization has crossed 80% and will become read-only at 85% utilized! Please free up some space or if possible expand the storage cluster immediately to prevent any service access issues. It is common to also be alerted to OSD devices entering near-full or full states prior to this alert.

That was received on reaching 80% of utilized capacity. There is no notification that cluster is read only after reaching 85%.

Expected results:
User should be notified that the cluster is read only.

Additional info:
Output of ceph df command on fully utilized cluster:

$ oc rsh -n openshift-storage $(oc get pods -n openshift-storage|grep tool|awk '{print$1}') ceph df
--- RAW STORAGE ---
CLASS    SIZE    AVAIL    USED  RAW USED  %RAW USED
ssd    12 TiB  1.8 TiB  10 TiB    10 TiB      85.01
TOTAL  12 TiB  1.8 TiB  10 TiB    10 TiB      85.01
 
--- POOLS ---
POOL                                                                ID  PGS   STORED  OBJECTS     USED   %USED  MAX AVAIL
device_health_metrics                                                1    1   15 KiB        6   46 KiB  100.00        0 B
ocs-storagecluster-cephblockpool                                     2   32     19 B        1   12 KiB  100.00        0 B
ocs-storagecluster-cephfilesystem-metadata                           3   32   18 KiB       22  138 KiB  100.00        0 B
ocs-storagecluster-cephfilesystem-data0                              4   32      0 B        0      0 B       0        0 B
cephblockpool-storageconsumer-1318e613-2b6e-45e1-81e2-b25f67221e47   5   32  3.4 TiB  892.69k   10 TiB  100.00        0 B

Comment 8 Dhruv Bindra 2023-01-20 09:49:53 UTC

Try it on the latest build

Comment 9 Filip Balák 2023-03-02 14:16:15 UTC

Notifications for cluster utilization including CephClusterReadOnly are not working:

$ oc rsh -n openshift-storage $(oc get pods -n openshift-storage|grep tool|awk '{print$1}') ceph df
--- RAW STORAGE ---
CLASS    SIZE    AVAIL    USED  RAW USED  %RAW USED
ssd    12 TiB  1.8 TiB  10 TiB    10 TiB      85.02
TOTAL  12 TiB  1.8 TiB  10 TiB    10 TiB      85.02
 
--- POOLS ---
POOL                                                                ID  PGS   STORED  OBJECTS     USED   %USED  MAX AVAIL
device_health_metrics                                                1    1      0 B        0      0 B       0        0 B
ocs-storagecluster-cephfilesystem-metadata                           2   32   16 KiB       22  131 KiB  100.00        0 B
ocs-storagecluster-cephfilesystem-data0                              3  256      0 B        0      0 B       0        0 B
cephblockpool-storageconsumer-fddd8f1a-09e4-42fc-be0d-7d70e5f02f79   4   64  3.4 TiB  893.22k   10 TiB  100.00        0 B

$ oc rsh -n openshift-storage $(oc get pods -n openshift-storage|grep tool|awk '{print$1}') ceph -s
  cluster:
    id:     9e2ee3a5-53ef-45f3-bbd7-2dc83b07993f
    health: HEALTH_ERR
            3 full osd(s)
            4 pool(s) full
 
  services:
    mon: 3 daemons, quorum a,b,c (age 5h)
    mgr: a(active, since 5h)
    mds: 1/1 daemons up, 1 hot standby
    osd: 3 osds: 3 up (since 5h), 3 in (since 5h)
 
  data:
    volumes: 1/1 healthy
    pools:   4 pools, 353 pgs
    objects: 893.24k objects, 3.4 TiB
    usage:   10 TiB used, 1.8 TiB / 12 TiB avail
    pgs:     353 active+clean
 
  io:
    client:   1.2 KiB/s rd, 2 op/s rd, 0 op/s wr

$ rosa describe addon-installation --cluster fbalak03-1-pr --addon ocs-provider-qe
Id:                          ocs-provider-qe
Href:                        /api/clusters_mgmt/v1/clusters/226dcb9q8ric7euo2o73oo9k3jg73rjq/addons/ocs-provider-qe
Addon state:                 ready
Parameters:
	"size"                      : "4"
	"onboarding-validation-key" : (...)
	"notification-email-1"      : "fbalak"
	"notification-email-2"      : "odf-ms-qe"


Tested with:
ocs-osd-deployer.v2.0.11

must-gather: http://magna002.ceph.redhat.com/ocsci-jenkins/openshift-clusters/fbalak03-1-pr/fbalak03-1-pr_20230301T100351/logs/testcases_1677687913/

Comment 10 Rewant 2023-07-03 11:04:29 UTC

@kmajumde can you please provide the latest update?