[LU-9752] Unable to format zfs osts

• Type: Bug
• Resolution: Fixed
• Priority: Major
• Fix Version/s: Lustre 2.11.0, Lustre 2.10.2
• Affects Version/s: Lustre 2.10.0
• Labels: zfs
• Environment: SLES12 SP2; Lustre community pre-release 2.10

Epic/Theme

zfs

• Severity: 2

Epic

zfs

• Assignee: Nathaniel Clark
• Reporter: Abe (Inactive)

Description

when trying to format zfs osts we get the following error:
mkfs.lustre --reformat --mdt --mgs --servicenode= 211@o2ib --backfstype=zfs --fsname=tempAA --index=0 mgs/mdt

Permanent disk data:
Target: tempAA:MDT0000
Index: 0
Lustre FS: tempAA
Mount type: zfs
Flags: 0x1065
(MDT MGS first_time update no_primnode )
Persistent mount opts:
Parameters: failover.node=10.10.10.213@o2ib:10.10.10.211@o2ib

mkfs.lustre FATAL: spl_hostid not set. See mkfs.lustre(8)
mkfs.lustre FATAL: mkfs failed 22
mkfs.lustre: exiting with 22 (Invalid argument)

Comments

[Gerrit Updater]

John L. Hammond ([e-mail]) merged in patch https://review.whamcloud.com/29805/
Subject: LU-9752 man: Reference zgenhostid instead of genhostid
Project: fs/lustre-release
Branch: b2_10
Current Patch Set:
Commit: 3dd7a41a9262635c42b8ba575d743b60e27ddbae

[Gerrit Updater]

Minh Diep ([e-mail]) uploaded a new patch: https://review.whamcloud.com/29805
Subject: LU-9752 man: Reference zgenhostid instead of genhostid
Project: fs/lustre-release
Branch: b2_10
Current Patch Set: 1
Commit: 58b218547b24069fffef45eb22a08439b632e548

[Peter Jones]

Landed for 2.11

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/29327/
Subject: LU-9752 man: Reference zgenhostid instead of genhostid
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: a1eb6de081473545fbd5c1fe33e209fe391bf708

[Gerrit Updater]

Nathaniel Clark ([e-mail]) uploaded a new patch: https://review.whamcloud.com/29327
Subject: LU-9752 man: Reference zgenhostid instead of genhostid
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: bbb792bc4373a999f0bbc1fd0dba62faf475b7f7

[Andreas Dilger]

Nathaniel, could you please submit a patch that updates our references to zgenhostid instead of genhostid in the mkfs.lustre.8 and tunefs.lustre.8 man pages.

[Nathaniel Clark]

zgenhostid made it into 0.7.0.

[Andreas Dilger]

The ZFS MMP implementation still depends on hostid to determine if the pool is being imported on the same node. There is a patch to create a zgenhostid command to make up for the lack of genhostid on SLES and Ubuntu, but that may only become available with ZFS 0.8.0, so I still think it makes sense for us to add our own genhostid command for those distros until it becomes available. At that point, we should consider changing our documentation to reference zgenhostid, since the upstream genhostid maintainer has said the command may be removed from RHEL completely.

[Nathaniel Clark]

Has this become irrelevant with ZFS 0.7.0's MMP? Since hostid isn't used for that?

[Andreas Dilger]

I wonder if it makes sense to add the above script into a genhostid command as part of osd-zfs-mount.rpm for SLES, so that users don't run into this problem?

The genhostid command is part of the RHEL initscripts package, while hostid is part of coreutils, so it does appear that genhostid is unique to RHEL, but it would be convenient to have this available on SLES as well.