[LU-7786] improve racer cleanup , racer timeout, /mnt/lustre2 is still busy ...

• Status: Resolved
• Project: Lustre
• Affects Version/s: Lustre 2.8.0
• Fix Version/s: Lustre 2.9.0
• Type: Bug
• Priority: Major
• Reporter: Lokesh Nagappa Jaliminche (Inactive)
• Assignee: WC Triage
• Resolution: Fixed
• Labels: patch
• Severity: 3

Description

racer timeout, t-f stucks on umount /mnt/lustre2 :

== racer test complete, duration 920 sec == 22:14:53 (1382220893)
Stopping clients: mft77,mft78 /mnt/lustre2 (opts:)
Stopping client mft78 /mnt/lustre2 opts:
COMMAND  PID USER   FD   TYPE      DEVICE SIZE/OFF               NODE NAME
dd      3567 root    1w   REG 1273,181606 80902144 144115205255725062 /mnt/lustre/racer/4
Stopping client mft77 /mnt/lustre2 opts:
COMMAND   PID USER   FD   TYPE      DEVICE  SIZE/OFF               NODE NAME
dd       7390 root    1w   REG 1273,181606  81574912 144115205255725062 /mnt/lustre/racer/8
dd       7395 root    1w   REG 1273,181606  81574912 144115205255725062 /mnt/lustre/racer/8
dd       7433 root    1w   REG 1273,181606  81592320 144115205255725062 /mnt/lustre2/racer/9
dd      31735 root    1w   REG 1273,181606 153261056 144115205255780734 /mnt/lustre/racer/2
/mnt/lustre2 is still busy, wait one second
/mnt/lustre2 is still busy, wait one second
/mnt/lustre2 is still busy, wait one second

Comments

[Lokesh Nagappa Jaliminche (Inactive)]

On cleanup racer terminates child scripts: file_create.sh, dir_create.sh, etc. Children of those srcipts do not get terminated
that way. Long running commands, like dd, causes annoying warnings: /mnt/lustre2 is still busy, wait one second
on attempt to umount $DIR2.
Added trap to all child scripts to have them to cleanup on exiting.

[Gerrit Updater]

lokesh.jaliminche ([e-mail]) uploaded a new patch: http://review.whamcloud.com/18475
Subject: LU-7786 tests: improve racer cleanup
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 2f30a5a04ffbdc7d176e4d859b43913e05fa51a3

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch http://review.whamcloud.com/18475/
Subject: LU-7786 tests: improve racer cleanup
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: dd48eb801321ab87c89dfbe3dd89fa487cf874b8