subject:"\[ceph\-users\] Re\: Libcephfs \: ceph_readdirplus_r\(\) with ceph_ll_lookup_vino\(\) \: ceph version 17.2.5 \(98318ae89f1a893a6ded3a640405cdbb33e08757\) quincy \(stable\)"

[ceph-users] Re: Libcephfs : ceph_readdirplus_r() with ceph_ll_lookup_vino() : ceph version 17.2.5 (98318ae89f1a893a6ded3a640405cdbb33e08757) quincy (stable)

2023-09-22 Thread Joseph Fernandes

re-attaching the files

On Fri, Sep 22, 2023 at 5:25 PM Joseph Fernandes 
wrote:

> Hello All,
>
> I found a weird issue with ceph_readdirplus_r() when used along
> with ceph_ll_lookup_vino().
> On ceph version 17.2.5 (98318ae89f1a893a6ded3a640405cdbb33e08757) quincy
> (stable)
>
> Any help is really appreciated.
>
> Thanks in advance,
> -Joe
>
> Test Scenario :
>
> A. Create a Ceph Fs Subvolume "4" and created a directory in root of
> subvolume "user_root"
>
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
> ceph fs subvolume ls cephfs
> [
> {
> "name": "4"
> }
> ]
> root@ss-joe-01
> (bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
>
>
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
> ls -l
> total 0
> drwxrwxrwx 2 root root 0 Sep 22 09:16 user_root
> root@ss-joe-01
> (bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
>
>
> B. In the "user_root" directory create some files and directories
>
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
> mkdir dir1 dir2
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
> ls
> dir1  dir2
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
>  echo
> "Hello Worldls!" > file1
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
> echo "Hello Worldls!" > file2
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
> ls
> dir1  dir2  file1  file2
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
> cat file*
> Hello Worldls!
> Hello Worldls!
>
>
> C. Create a subvolume snapshot   "sofs-4-5". Please ignore the older
> snapshots.
>
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
> ceph fs subvolume snapshot ls cephfs 4
> [
> {
> "name": "sofs-4-1"
> },
> {
> "name": "sofs-4-2"
> },
> {
> "name": "sofs-4-3"
> },
> {
> "name": "sofs-4-4"
> },
> {
> "name": "sofs-4-5"
> }
> ]
> root@ss-joe-01
> (bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
>
> Here "sofs-4-5" has snapshot id 6.
> Got this from libcephfs and have verified at Line
> snapshot_inode_lookup.cpp#L212. (Attached to the email)
>
>
>#Content within the snapshot
>
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
> cd .snap/
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/.snap#
> ls
> _sofs-4-1_1099511627778  _sofs-4-2_1099511627778  _sofs-4-3_1099511627778
>  _sofs-4-4_1099511627778  _sofs-4-5_1099511627778
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/.snap#
> cd _sofs-4-5_1099511627778/
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/.snap/_sofs-4-5_1099511627778#
> ls
> user_root
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/.snap/_sofs-4-5_1099511627778#
> cd user_root/
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/.snap/_sofs-4-5_1099511627778/user_root#
> ls
> dir1  dir2  file1  file2
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/.snap/_sofs-4-5_1099511627778/user_root#
> cat file*
> Hello Worldls!
> Hello Worldls!
> root@ss-joe-01
> (bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/.snap/_sofs-4-5_1099511627778/user_root#
>
>
> D. Delete all the files and directories in "user_root"
>
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
> rm -rf *
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
> ls
> root@ss-joe-01
> (bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
>
>
> E. Using Libcephfs in a C++ program do the following,(Attached to this
> email)
>
>1. Get the Inode of "user_root" using ceph_ll_walk().
>2. Open the directory using Inode received from  ceph_ll_walk()  and
>do  ceph_readdirplus_r()
>We don't see any dentries(except "." and "..")  as we have deleted all
>files and directories in the active filesystem. This is expected and
>correct!
>
>
>
>
> =/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root/=
>
>Path/Name
> :"/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root/"
>Inode Address: 0x7f5ce0009900
>Inode Number : 1099511629282
>Snapshot Number  : 18446744073709551614
>I

[ceph-users] Re: Libcephfs : ceph_readdirplus_r() with ceph_ll_lookup_vino() : ceph version 17.2.5 (98318ae89f1a893a6ded3a640405cdbb33e08757) quincy (stable)

2023-09-22 Thread Joseph Fernandes

reattaching files

On Fri, Sep 22, 2023 at 5:25 PM Joseph Fernandes 
wrote:

> Hello All,
>
> I found a weird issue with ceph_readdirplus_r() when used along
> with ceph_ll_lookup_vino().
> On ceph version 17.2.5 (98318ae89f1a893a6ded3a640405cdbb33e08757) quincy
> (stable)
>
> Any help is really appreciated.
>
> Thanks in advance,
> -Joe
>
> Test Scenario :
>
> A. Create a Ceph Fs Subvolume "4" and created a directory in root of
> subvolume "user_root"
>
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
> ceph fs subvolume ls cephfs
> [
> {
> "name": "4"
> }
> ]
> root@ss-joe-01
> (bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
>
>
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
> ls -l
> total 0
> drwxrwxrwx 2 root root 0 Sep 22 09:16 user_root
> root@ss-joe-01
> (bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
>
>
> B. In the "user_root" directory create some files and directories
>
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
> mkdir dir1 dir2
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
> ls
> dir1  dir2
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
>  echo
> "Hello Worldls!" > file1
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
> echo "Hello Worldls!" > file2
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
> ls
> dir1  dir2  file1  file2
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
> cat file*
> Hello Worldls!
> Hello Worldls!
>
>
> C. Create a subvolume snapshot   "sofs-4-5". Please ignore the older
> snapshots.
>
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
> ceph fs subvolume snapshot ls cephfs 4
> [
> {
> "name": "sofs-4-1"
> },
> {
> "name": "sofs-4-2"
> },
> {
> "name": "sofs-4-3"
> },
> {
> "name": "sofs-4-4"
> },
> {
> "name": "sofs-4-5"
> }
> ]
> root@ss-joe-01
> (bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
>
> Here "sofs-4-5" has snapshot id 6.
> Got this from libcephfs and have verified at Line
> snapshot_inode_lookup.cpp#L212. (Attached to the email)
>
>
>#Content within the snapshot
>
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
> cd .snap/
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/.snap#
> ls
> _sofs-4-1_1099511627778  _sofs-4-2_1099511627778  _sofs-4-3_1099511627778
>  _sofs-4-4_1099511627778  _sofs-4-5_1099511627778
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/.snap#
> cd _sofs-4-5_1099511627778/
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/.snap/_sofs-4-5_1099511627778#
> ls
> user_root
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/.snap/_sofs-4-5_1099511627778#
> cd user_root/
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/.snap/_sofs-4-5_1099511627778/user_root#
> ls
> dir1  dir2  file1  file2
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/.snap/_sofs-4-5_1099511627778/user_root#
> cat file*
> Hello Worldls!
> Hello Worldls!
> root@ss-joe-01
> (bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/.snap/_sofs-4-5_1099511627778/user_root#
>
>
> D. Delete all the files and directories in "user_root"
>
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
> rm -rf *
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
> ls
> root@ss-joe-01
> (bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
>
>
> E. Using Libcephfs in a C++ program do the following,(Attached to this
> email)
>
>1. Get the Inode of "user_root" using ceph_ll_walk().
>2. Open the directory using Inode received from  ceph_ll_walk()  and
>do  ceph_readdirplus_r()
>We don't see any dentries(except "." and "..")  as we have deleted all
>files and directories in the active filesystem. This is expected and
>correct!
>
>
>
>
> =/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root/=
>
>Path/Name
> :"/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root/"
>Inode Address: 0x7f5ce0009900
>Inode Number : 1099511629282
>Snapshot Number  : 18446744073709551614
>Inode

[ceph-users] Re: Libcephfs : ceph_readdirplus_r() with ceph_ll_lookup_vino() : ceph version 17.2.5 (98318ae89f1a893a6ded3a640405cdbb33e08757) quincy (stable)

2023-09-22 Thread Venky Shankar

Hi Joseph,

On Fri, Sep 22, 2023 at 5:27 PM Joseph Fernandes  wrote:
>
> Hello All,
>
> I found a weird issue with ceph_readdirplus_r() when used along
> with ceph_ll_lookup_vino().
> On ceph version 17.2.5 (98318ae89f1a893a6ded3a640405cdbb33e08757) quincy
> (stable)
>
> Any help is really appreciated.
>
> Thanks in advance,
> -Joe
>
> Test Scenario :
>
> A. Create a Ceph Fs Subvolume "4" and created a directory in root of
> subvolume "user_root"
>
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
> ceph fs subvolume ls cephfs
> [
> {
> "name": "4"
> }
> ]
> root@ss-joe-01
> (bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
>
>
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
> ls -l
> total 0
> drwxrwxrwx 2 root root 0 Sep 22 09:16 user_root
> root@ss-joe-01
> (bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
>
>
> B. In the "user_root" directory create some files and directories
>
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
> mkdir dir1 dir2
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
> ls
> dir1  dir2
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
> echo
> "Hello Worldls!" > file1
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
> echo "Hello Worldls!" > file2
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
> ls
> dir1  dir2  file1  file2
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
> cat file*
> Hello Worldls!
> Hello Worldls!
>
>
> C. Create a subvolume snapshot   "sofs-4-5". Please ignore the older
> snapshots.
>
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
> ceph fs subvolume snapshot ls cephfs 4
> [
> {
> "name": "sofs-4-1"
> },
> {
> "name": "sofs-4-2"
> },
> {
> "name": "sofs-4-3"
> },
> {
> "name": "sofs-4-4"
> },
> {
> "name": "sofs-4-5"
> }
> ]
> root@ss-joe-01
> (bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
>
> Here "sofs-4-5" has snapshot id 6.
> Got this from libcephfs and have verified at Line
> snapshot_inode_lookup.cpp#L212. (Attached to the email)
>
>
>#Content within the snapshot
>
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
> cd .snap/
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/.snap#
> ls
> _sofs-4-1_1099511627778  _sofs-4-2_1099511627778  _sofs-4-3_1099511627778
>  _sofs-4-4_1099511627778  _sofs-4-5_1099511627778
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/.snap#
> cd _sofs-4-5_1099511627778/
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/.snap/_sofs-4-5_1099511627778#
> ls
> user_root
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/.snap/_sofs-4-5_1099511627778#
> cd user_root/
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/.snap/_sofs-4-5_1099511627778/user_root#
> ls
> dir1  dir2  file1  file2
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/.snap/_sofs-4-5_1099511627778/user_root#
> cat file*
> Hello Worldls!
> Hello Worldls!
> root@ss-joe-01
> (bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/.snap/_sofs-4-5_1099511627778/user_root#
>
>
> D. Delete all the files and directories in "user_root"
>
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
> rm -rf *
> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
> ls
> root@ss-joe-01
> (bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root#
>
>
> E. Using Libcephfs in a C++ program do the following,(Attached to this
> email)
>
>1. Get the Inode of "user_root" using ceph_ll_walk().
>2. Open the directory using Inode received from  ceph_ll_walk()  and do
>ceph_readdirplus_r()
>We don't see any dentries(except "." and "..")  as we have deleted all
>files and directories in the active filesystem. This is expected and
>correct!
>
>
>
>
> =/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root/=
>
>Path/Name
> :"/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23/user_root/"
>Inode Address: 0x7f5ce0009900
>Inode Number : 1099511629282
>Snapshot Number  : 18446744073709551614
>Inode Number

[ceph-users] Re: Libcephfs : ceph_readdirplus_r() with ceph_ll_lookup_vino() : ceph version 17.2.5 (98318ae89f1a893a6ded3a640405cdbb33e08757) quincy (stable)

2023-09-22 Thread Joseph Fernandes

Hello Venky,

Nice to hear from you :) Hope you are doing well.

I tried as you suggested,

root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root# mkdir dir1
dir2
root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root# echo "Hello
Worldls!" > file2
root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root# echo "Hello
Worldls!" > file1
root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root# ls
dir1  dir2  file1  file2
root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root#

Create a new snapshot called  "sofs-4-6"

root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root#  ceph fs
subvolume snapshot ls cephfs 4
[
{
"name": "sofs-4-1"
},
{
"name": "sofs-4-2"
},
{
"name": "sofs-4-3"
},
{
"name": "sofs-4-4"
},
{
"name": "sofs-4-5"
},
{
"name": "sofs-4-6"
}
]
root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root#

And Delete the file and directory from the active filessystem

root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root# rm -rf *
root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root# ls
root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root# cd .snap
root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root/.snap# ls
_sofs-4-6_1099511627778
root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root/.snap# cd
_sofs-4-6_1099511627778/
root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root/.snap/_sofs-4-6_1099511627778#
ls
dir1  dir2  file1  file2
root@ss-joe-01
(bash):/mnt/cephfs/volumes/_nogroup/4/user_root/.snap/_sofs-4-6_1099511627778#

Now I modified the program and executed it, I am getting the same result.

 root@ss-joe-01(bash):/home/hydrauser# ./snapshot_inode_lookup
=/volumes/_nogroup/4/user_root/=

Path/Name:"/volumes/_nogroup/4/user_root/"
Inode Address: 0x7f7c10008f00
Inode Number : 1099511628293
Snapshot Number  : 18446744073709551614
Inode Number : 1099511628293
Snapshot Number  : 18446744073709551614
. Ino: 1099511628293 SnapId: 18446744073709551614 Address: 0x7f7c10008f00
.. Ino: 1099511627778 SnapId: 18446744073709551614 Address: 0x7f7c100086f0

=1099511628293:7=

Path/Name:"1099511628293:7"
Inode Address: 0x7f7c10009710
Inode Number : 1099511628293
Snapshot Number  : 7
Inode Number : 1099511628293
Snapshot Number  : 7
. Ino: 1099511628293 SnapId: 7 Address: 0x7f7c10009710
.. Ino: 1099511628293 SnapId: 7 Address: 0x7f7c10009710

=/volumes/_nogroup/4/user_root/.snap/_sofs-4-6_1099511627778=

Path/Name
 :"/volumes/_nogroup/4/user_root/.snap/_sofs-4-6_1099511627778"
Inode Address: 0x7f7c10009710
Inode Number : 1099511628293
Snapshot Number  : 7
Inode Number : 1099511628293
Snapshot Number  : 7
. Ino: 1099511628293 SnapId: 7 Address: 0x7f7c10009710
.. Ino: 1099511628293 SnapId: 18446744073709551615 Address: 0x55efc15b4640
file1 Ino: 1099511628297 SnapId: 7 Address: 0x7f7c1000a030
dir1 Ino: 1099511628294 SnapId: 7 Address: 0x7f7c1000a720
dir2 Ino: 1099511628295 SnapId: 7 Address: 0x7f7c1000ada0
file2 Ino: 1099511628296 SnapId: 7 Address: 0x7f7c1000b420

=1099511628293:7=

Path/Name:"1099511628293:7"
Inode Address: 0x7f7c10009710
Inode Number : 1099511628293
Snapshot Number  : 7
Inode Number : 1099511628293
Snapshot Number  : 7
. Ino: 1099511628293 SnapId: 7 Address: 0x7f7c10009710
.. Ino: 1099511628293 SnapId: 18446744073709551615 Address: 0x55efc15b4640
file1 Ino: 1099511628297 SnapId: 7 Address: 0x7f7c1000a030
dir1 Ino: 1099511628294 SnapId: 7 Address: 0x7f7c1000a720
dir2 Ino: 1099511628295 SnapId: 7 Address: 0x7f7c1000ada0
file2 Ino: 1099511628296 SnapId: 7 Address: 0x7f7c1000b420

root@ss-joe-01(bash):/home/hydrauser#

I have attached the modified program and ceph client logs from this run.

Cheers,
Joe

On Fri, Sep 22, 2023 at 8:54 PM Venky Shankar  wrote:

> Hi Joseph,
>
> On Fri, Sep 22, 2023 at 5:27 PM Joseph Fernandes 
> wrote:
> >
> > Hello All,
> >
> > I found a weird issue with ceph_readdirplus_r() when used along
> > with ceph_ll_lookup_vino().
> > On ceph version 17.2.5 (98318ae89f1a893a6ded3a640405cdbb33e08757) quincy
> > (stable)
> >
> > Any help is really appreciated.
> >
> > Thanks in advance,
> > -Joe
> >
> > Test Scenario :
> >
> > A. Create a Ceph Fs Subvolume "4" and created a directory in root of
> > subvolume "user_root"
> >
> > root@ss-joe-01
> (bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
> > ceph fs subvolume ls cephfs
> > [
> > {
> > "name": "4"
> > }
> > ]
> > root@ss-joe-01
> >
> (bash):/mnt/cephfs/volumes/_nogroup/4/f0fae76f-196d-4ebd-b8d0-528985505b23#
> >
> >
> > root@ss-joe-01
> (bash):/mnt/cephfs/vo

[ceph-users] Re: Libcephfs : ceph_readdirplus_r() with ceph_ll_lookup_vino() : ceph version 17.2.5 (98318ae89f1a893a6ded3a640405cdbb33e08757) quincy (stable)

2023-09-26 Thread Joseph Fernandes

CC ceph-user
(Apologies, Forgot last time I replied)

On Tue, Sep 26, 2023 at 1:11 PM Joseph Fernandes 
wrote:

> Hello Venky,
>
> Did you get a chance to look into the updated program? Am I
> missing something?
> I suppose it's something trivial I am missing, As I see these API used in
> NFS Ganesha also and would have been tested there.
>
> https://github.com/nfs-ganesha/nfs-ganesha/blob/2a57b6d53295426247b200cd100ba0741b12aff9/src/FSAL/FSAL_CEPH/export.c#L322
>
> Thanks,
> ~Joe
>
> On Fri, Sep 22, 2023 at 10:52 PM Joseph Fernandes 
> wrote:
>
>> Hello Venky,
>>
>> Nice to hear from you :) Hope you are doing well.
>>
>> I tried as you suggested,
>>
>> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root# mkdir
>> dir1 dir2
>> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root# echo
>> "Hello Worldls!" > file2
>> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root# echo
>> "Hello Worldls!" > file1
>> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root# ls
>> dir1  dir2  file1  file2
>> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root#
>>
>> Create a new snapshot called  "sofs-4-6"
>>
>> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root#  ceph fs
>> subvolume snapshot ls cephfs 4
>> [
>> {
>> "name": "sofs-4-1"
>> },
>> {
>> "name": "sofs-4-2"
>> },
>> {
>> "name": "sofs-4-3"
>> },
>> {
>> "name": "sofs-4-4"
>> },
>> {
>> "name": "sofs-4-5"
>> },
>> {
>> "name": "sofs-4-6"
>> }
>> ]
>> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root#
>>
>> And Delete the file and directory from the active filessystem
>>
>> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root# rm -rf *
>> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root# ls
>> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root# cd .snap
>> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root/.snap# ls
>> _sofs-4-6_1099511627778
>> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root/.snap# cd
>> _sofs-4-6_1099511627778/
>> root@ss-joe-01(bash):/mnt/cephfs/volumes/_nogroup/4/user_root/.snap/_sofs-4-6_1099511627778#
>> ls
>> dir1  dir2  file1  file2
>> root@ss-joe-01
>> (bash):/mnt/cephfs/volumes/_nogroup/4/user_root/.snap/_sofs-4-6_1099511627778#
>>
>> Now I modified the program and executed it, I am getting the same result.
>>
>>  root@ss-joe-01(bash):/home/hydrauser# ./snapshot_inode_lookup
>>
>> =/volumes/_nogroup/4/user_root/=
>>
>> Path/Name:"/volumes/_nogroup/4/user_root/"
>> Inode Address: 0x7f7c10008f00
>> Inode Number : 1099511628293
>> Snapshot Number  : 18446744073709551614
>> Inode Number : 1099511628293
>> Snapshot Number  : 18446744073709551614
>> . Ino: 1099511628293 SnapId: 18446744073709551614 Address: 0x7f7c10008f00
>> .. Ino: 1099511627778 SnapId: 18446744073709551614 Address: 0x7f7c100086f0
>>
>>
>> =1099511628293:7=
>>
>> Path/Name:"1099511628293:7"
>> Inode Address: 0x7f7c10009710
>> Inode Number : 1099511628293
>> Snapshot Number  : 7
>> Inode Number : 1099511628293
>> Snapshot Number  : 7
>> . Ino: 1099511628293 SnapId: 7 Address: 0x7f7c10009710
>> .. Ino: 1099511628293 SnapId: 7 Address: 0x7f7c10009710
>>
>>
>> =/volumes/_nogroup/4/user_root/.snap/_sofs-4-6_1099511627778=
>>
>> Path/Name
>>  :"/volumes/_nogroup/4/user_root/.snap/_sofs-4-6_1099511627778"
>> Inode Address: 0x7f7c10009710
>> Inode Number : 1099511628293
>> Snapshot Number  : 7
>> Inode Number : 1099511628293
>> Snapshot Number  : 7
>> . Ino: 1099511628293 SnapId: 7 Address: 0x7f7c10009710
>> .. Ino: 1099511628293 SnapId: 18446744073709551615 Address: 0x55efc15b4640
>> file1 Ino: 1099511628297 SnapId: 7 Address: 0x7f7c1000a030
>> dir1 Ino: 1099511628294 SnapId: 7 Address: 0x7f7c1000a720
>> dir2 Ino: 1099511628295 SnapId: 7 Address: 0x7f7c1000ada0
>> file2 Ino: 1099511628296 SnapId: 7 Address: 0x7f7c1000b420
>>
>>
>> =1099511628293:7=
>>
>> Path/Name:"1099511628293:7"
>> Inode Address: 0x7f7c10009710
>> Inode Number : 1099511628293
>> Snapshot Number  : 7
>> Inode Number : 1099511628293
>> Snapshot Number  : 7
>> . Ino: 1099511628293 SnapId: 7 Address: 0x7f7c10009710
>> .. Ino: 1099511628293 SnapId: 18446744073709551615 Address: 0x55efc15b4640
>> file1 Ino: 1099511628297 SnapId: 7 Address: 0x7f7c1000a030
>> dir1 Ino: 1099511628294 SnapId: 7 Address: 0x7f7c1000a720
>> dir2 Ino: 1099511628295 SnapId: 7 Address: 0x7f7c1000ada0
>> file2 Ino: 1099511628296 SnapId: 7 Address: 0x7f7c1000b420
>>
>> root@ss-joe-01(bash):/home/hydrauser#
>>
>> I have attached the modified program and ceph client logs from this run.
>>
>> C

[ceph-users] Re: Libcephfs : ceph_readdirplus_r() with ceph_ll_lookup_vino() : ceph version 17.2.5 (98318ae89f1a893a6ded3a640405cdbb33e08757) quincy (stable)

[ceph-users] Re: Libcephfs : ceph_readdirplus_r() with ceph_ll_lookup_vino() : ceph version 17.2.5 (98318ae89f1a893a6ded3a640405cdbb33e08757) quincy (stable)

[ceph-users] Re: Libcephfs : ceph_readdirplus_r() with ceph_ll_lookup_vino() : ceph version 17.2.5 (98318ae89f1a893a6ded3a640405cdbb33e08757) quincy (stable)

[ceph-users] Re: Libcephfs : ceph_readdirplus_r() with ceph_ll_lookup_vino() : ceph version 17.2.5 (98318ae89f1a893a6ded3a640405cdbb33e08757) quincy (stable)

[ceph-users] Re: Libcephfs : ceph_readdirplus_r() with ceph_ll_lookup_vino() : ceph version 17.2.5 (98318ae89f1a893a6ded3a640405cdbb33e08757) quincy (stable)

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