[LU-8132] tests: llmount.sh does not use fs-specific paths for the ost and mdt it mounts

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.9.0
• Labels: patch
• Severity: 3
• Assignee: James Nunez (Inactive)
• Reporter: CEA

Description

When using llmount.sh with its default configuration, the paths to the ost(s) and mdt(s) looks like this:
/mnt/<component><id> (for example "/mnt/ost1")

Because those paths are not specific to the filesystem they are related to, when mounting two different filesystems with llmount.sh, the first one's ost(s) and mdt(s) are replaced by the second's.

Issue Links

• is related to: LU-8140 tests: mount two distinct filesystems in local mode with llmount.sh

Comments

[James Nunez (Inactive)]

Patch landed to master (pre-2.9.0). Work related to this ticket is tracked under LU-8140.

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch http://review.whamcloud.com/20188/
Subject: LU-8132 tests: do not truncate fsname from paths to ost/mdt
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 710f5ea458ee0db188bb7303ec18feb99e1ce1e0

[Quentin Bouget (Inactive)]

Ok, thanks. Here is the related ticket: LU-8140.

[James Nunez (Inactive)]

Quentin - Thank you for the patch. You may certainly add functionality to the existing patch, but I prefer patches that do a single thing since this is easier for reviewers and may help with the landing process. My request would be to upload a second patch with your proposed change of introducing NOFORMAT_MGS and NOSETUP_MGS.

[Quentin Bouget (Inactive)]

Actually since the ultimate goal is to be able to mount two different filesystems in local mode with llmount.sh, would it be ok for this patch to introduce some other modifications?

For that, the changes in the current fix are not enough. I would need to add an option "NOFORMAT_MGS" and "NOSETUP_MGS" (similar to the NOFORMAT and NOSETUP variables used in llmount.sh) to protect the mgs created by the first llmount.sh execution from the second one.

[Gerrit Updater]

Quentin Bouget ([e-mail]) uploaded a new patch: http://review.whamcloud.com/20188
Subject: LU-8132 tests: do not truncate fsname from paths to ost/mdt
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 9a744f95f19620b0adb8276c00165dd784cee084

[Peter Jones]

Do you intend to push a patch to fix this?

[Quentin Bouget (Inactive)]

This could be corrected by changing the paths to something like:
/mnt/<fsname>-<component><id>