Bug #42777: get_devices has unexpected return depending on file system location - ceph-volume - Ceph

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Bug #42777

closed

get_devices has unexpected return depending on file system location

Added by Jan Fajerski over 4 years ago. Updated about 4 years ago.

Status:

Resolved

Priority:

Normal

Assignee:

Jan Fajerski

Target version:

% Done:

Source:

Tags:

Backport:

nautilus, mimic

Regression:

Severity:

3 - minor

Reviewed:

Affected Versions:

ceph-qa-suite:

Pull request ID:

31574

Crash signature (v1):

Crash signature (v2):

Description

This is exhibited by the inventory subcommand:

c1boyd8:~ # ceph-volume inventory
Device Path Size rotates available Model name
/dev/sda 40.00 GB True True QEMU HARDDISK
/dev/sdb 40.00 GB True False QEMU HARDDISK
/dev/sdc 40.00 GB True False QEMU HARDDISK
/dev/sdd 40.00 GB True False QEMU HARDDISK
/dev/sde 40.00 GB True False QEMU HARDDISK
/dev/sdf 40.00 GB True False QEMU HARDDISK
/dev/vda 25.00 GB True False 

c1boyd8:~ # cd /dev/mapper
c1boyd8:/dev/mapper # ceph-volume inventory
stderr: Unknown device, --name=, --path=, or absolute path in /dev/ or /sys expected.
stderr: Unknown device, --name=, --path=, or absolute path in /dev/ or /sys expected.
stderr: Unknown device, --name=, --path=, or absolute path in /dev/ or /sys expected.
stderr: Unknown device, --name=, --path=, or absolute path in /dev/ or /sys expected.
stderr: Unknown device, --name=, --path=, or absolute path in /dev/ or /sys expected.
Device Path Size rotates available Model name
/dev/sda 40.00 GB True True QEMU HARDDISK
ceph--2fe4d46f--bf17--42a8--97d6--9253865f5b5d-osd--data--149b4a5c--0734--43c8--b08b--c3a16c771ab8 39.00 GB True True 
ceph--492019c2--8ca7--457c--9685--68532b34d0ae-osd--data--6482341a--9934--4c59--ad9f--ff7adc8a3362 39.00 GB True True 
ceph--b61a894f--d45a--4906--8da4--eb234fca519a-osd--data--3fcccc07--1ef7--4a33--8870--bd3eca24f421 39.00 GB True True 
ceph--d2e30bbf--c8ed--4cb1--ae4f--63f2c042176a-osd--data--b2079e8e--bb19--44e0--9c5d--138a7f528974 39.00 GB True True 
ceph--e1204ad0--36a5--4bcc--80d4--e52dcdaef4e0-osd--data--c7c0cd59--b863--4ef2--8b2b--4730bf4dfd06 39.00 GB True True 
/dev/sdb 40.00 GB True False QEMU HARDDISK
/dev/sdc 40.00 GB True False QEMU HARDDISK
/dev/sdd 40.00 GB True False QEMU HARDDISK
/dev/sde 40.00 GB True False QEMU HARDDISK
/dev/sdf 40.00 GB True False QEMU HARDDISK
/dev/vda 25.00 GB True False

When executed in the /dev/mapper directory the ceph LVM devices are shown as available OSD targets.
The cause is the use of pythons os.path.realpath which can have differing returns based on file system location.

Related issues 2 (0 open — 2 closed)