Bug 2240583

Summary:	pybind/mgr/volumes: pending_subvolume_deletions count is always zero in fs volume info output
Product:	[Red Hat Storage] Red Hat Ceph Storage	Reporter:	Kotresh HR <khiremat>
Component:	Ceph-Mgr Plugins	Assignee:	Kotresh HR <khiremat>
Ceph-Mgr Plugins sub component:	volumes	QA Contact:	Amarnath <amk>
Status:	CLOSED ERRATA	Docs Contact:	ceph-docs <ceph-docs>
Severity:	high
Priority:	unspecified	CC:	amk, saraut, sostapov, tserlin, vereddy
Version:	7.0
Target Milestone:	---
Target Release:	7.1
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	ceph-18.2.1-2.el9cp	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:
Clones:	2240585 2240586 (view as bug list)		Environment:
Last Closed:	2024-06-13 14:21:43 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:	2240585, 2240586

Description Kotresh HR 2023-09-25 11:13:28 UTC

Description of problem:
pybind/mgr/volumes: pending_subvolume_deletions count is always zero in fs volume info output

https://tracker.ceph.com/issues/62278

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.
2.
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Actual results:


Expected results:


Additional info:

Comment 1 RHEL Program Management 2023-09-25 11:13:36 UTC

Please specify the severity of this bug. Severity is defined here:
https://bugzilla.redhat.com/page.cgi?id=fields.html#bug_severity.

Comment 5 Amarnath 2024-05-06 20:09:59 UTC

Hi Kotresh,

I created 100 subvolumes and deleted them but I don't see any change in pending_subvolume_deletions count

[root@ceph-amk-mirror-e90msi-node8 nfs_9GNKZ]# for i in {1..100}; do ceph fs subvolume create cephfs "subvol_${i}"; done
    
[root@ceph-amk-mirror-e90msi-node8 nfs_9GNKZ]# 
[root@ceph-amk-mirror-e90msi-node8 nfs_9GNKZ]# for i in {1..100}; do ceph fs subvolume rm cephfs "subvol_${i}"; done
[root@ceph-amk-mirror-e90msi-node8 nfs_9GNKZ]# ceph fs subvolume ls cephfs
[]
[root@ceph-amk-mirror-e90msi-node8 nfs_9GNKZ]# ceph fs volume info cephfs
{
    "mon_addrs": [
        "10.0.211.109:6789",
        "10.0.208.154:6789",
        "10.0.210.104:6789"
    ],
    "pending_subvolume_deletions": 0,
    "pools": {
        "data": [
            {
                "avail": 55874289664,
                "name": "cephfs.cephfs.data",
                "used": 2579496960
            }
        ],
        "metadata": [
            {
                "avail": 55874289664,
                "name": "cephfs.cephfs.meta",
                "used": 611917824
            }
        ]
    },
    "used_size": 0
}

Regards,
Amarnath

Comment 6 Scott Ostapovicz 2024-05-13 20:00:15 UTC

Is anyone actively working on this BZ?  I see that the upstream tracker has been closed.  We have approximately 1 week until the final RC build for 7.1.

Comment 8 Amarnath 2024-05-16 13:32:26 UTC

Hi All,

After adding the data into the subvolume created we can see the pending_subvolume_deletions getting updated


[root@ceph-amk-clients-71dnpt-node9 ~]#  ceph fs volume info cephfs
{
    "mon_addrs": [
        "10.0.210.19:6789",
        "10.0.208.103:6789",
        "10.0.210.115:6789"
    ],
    "pending_subvolume_deletions": 0,
    "pools": {
        "data": [
            {
                "avail": 53018558464,
                "name": "cephfs.cephfs.data",
                "used": 467435520
            }
        ],
        "metadata": [
            {
                "avail": 53018558464,
                "name": "cephfs.cephfs.meta",
                "used": 722640822
            }
        ]
    },
    "used_size": 155189794
}
[root@ceph-amk-clients-71dnpt-node9 ~]#  ceph fs subvolume rm cephfs "subvol_1"
^[[A[root@ceph-amk-clients-71dnpt-node9 ~]#  ceph fs volume info cephfs
{
    "mon_addrs": [
        "10.0.210.19:6789",
        "10.0.208.103:6789",
        "10.0.210.115:6789"
    ],
    "pending_subvolume_deletions": 1,
    "pools": {
        "data": [
            {
                "avail": 53479243776,
                "name": "cephfs.cephfs.data",
                "used": 491692032
            }
        ],
        "metadata": [
            {
                "avail": 53479243776,
                "name": "cephfs.cephfs.meta",
                "used": 739921864
            }
        ]
    },
    "used_size": 155767459
}
[root@ceph-amk-clients-71dnpt-node9 ~]#  ceph fs volume info cephfs
{
    "mon_addrs": [
        "10.0.210.19:6789",
        "10.0.208.103:6789",
        "10.0.210.115:6789"
    ],
    "pending_subvolume_deletions": 1,
    "pools": {
        "data": [
            {
                "avail": 53372796928,
                "name": "cephfs.cephfs.data",
                "used": 538193920
            }
        ],
        "metadata": [
            {
                "avail": 53372796928,
                "name": "cephfs.cephfs.meta",
                "used": 773410760
            }
        ]
    },
    "used_size": 155812515
}
[root@ceph-amk-clients-71dnpt-node9 ~]#  ceph fs subvolume rm cephfs "subvol_2"
[root@ceph-amk-clients-71dnpt-node9 ~]#  ceph fs volume info cephfs
{
    "mon_addrs": [
        "10.0.210.19:6789",
        "10.0.208.103:6789",
        "10.0.210.115:6789"
    ],
    "pending_subvolume_deletions": 2,
    "pools": {
        "data": [
            {
                "avail": 53216247808,
                "name": "cephfs.cephfs.data",
                "used": 601165824
            }
        ],
        "metadata": [
            {
                "avail": 53216247808,
                "name": "cephfs.cephfs.meta",
                "used": 836988872
            }
        ]
    },
    "used_size": 168022691
}
[root@ceph-amk-clients-71dnpt-node9 ~]# 

Created subvolumes with data using 

for i in {1..10}; do ceph fs subvolume create cephfs "subvol_${i}";python3 /home/cephuser/smallfile/smallfile_cli.py --operation create --threads 10 --file-size 4 --files 1000 --files-per-dir 10 --dirs-per-dir 2 --top /mnt/ceph-fue/volumes/_nogroup/subvol_${i} ;done

Regards,
Amarnath

Comment 9 errata-xmlrpc 2024-06-13 14:21:43 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 (Critical: Red Hat Ceph Storage 7.1 security, enhancements, and 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/RHSA-2024:3925