[LU-10098] Lustre resource agent can mis-identify resource mounts

• Type: Bug
• Resolution: Fixed
• Priority: Critical
• Fix Version/s: Lustre 2.11.0, Lustre 2.10.3
• Affects Version/s: Lustre 2.10.0, Lustre 2.10.1
• Labels: ha pacemaker
• Severity: 3
• Assignee: Nathaniel Clark
• Reporter: Nathaniel Clark

Description

In the Lustre resource agent lustre_is_mounted() greps the mountpoint from /proc/mounts but if that mountpoint matches a substring of a different mountpoint
e.g. /mnt/ost1 and /mnt/ost11.
It will register as already mounted and fail to start.

Comments

[Gerrit Updater]

John L. Hammond ([e-mail]) merged in patch https://review.whamcloud.com/29352/
Subject: LU-10098 scripts: Fix mounted check in Lustre RA
Project: fs/lustre-release
Branch: b2_10
Current Patch Set:
Commit: 8a886b997c253da0472c3ab115b159f7878c1dde

[Peter Jones]

Landed for 2.11

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/29351/
Subject: LU-10098 scripts: Fix mounted check in Lustre RA
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: df96fab178534adb34067b20490a2d0629aabe2f

[Gerrit Updater]

Nathaniel Clark ([e-mail]) uploaded a new patch: https://review.whamcloud.com/29352
Subject: LU-10098 scripts: Fix mountpoint check in Lustre RA
Project: fs/lustre-release
Branch: b2_10
Current Patch Set: 1
Commit: 4a09e13f9922968cda966eb02cc94b983d964050

[Gerrit Updater]

Nathaniel Clark ([e-mail]) uploaded a new patch: https://review.whamcloud.com/29351
Subject: LU-10098 scripts: Fix mountpoint check in Lustre RA
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: d77308de6ccd9314fa3653f1a7d844057ee06a72

[Nathaniel Clark]

This issue also affects the LustreZFS agent previously distributed. The fix is to replace the lustre_is_mounted() function as in the following patch.