[LU-16639] job_stat_exit() should not have any items

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0, Lustre 2.15.6
• Affects Version/s: Lustre 2.16.0
• Labels: LTS15
• Severity: 3
• Assignee: Andreas Dilger
• Reporter: Andreas Dilger

Description

It looks like a patch has somehow resulted in a leak of job_stats on the server that result in a message being printed at unmount time:

[ 1095.059674] Lustre: Failing over lustre-MDT0000
[ 1095.090215] LustreError: 31568:0:(lprocfs_jobstats.c:137:job_stat_exit()) should not have any items
[ 1095.093184] LustreError: 31568:0:(lprocfs_jobstats.c:137:job_stat_exit()) Skipped 20 previous similar messages
[ 1095.146954] Lustre: server umount lustre-MDT0000 complete

This started around 2022-03-03 but I haven't isolated it to a specific patch yet.

Issue Links

• is duplicated by: LU-18376 Lustre Server Console logs contains LustreError messages. lprocfs_jobstats.c:137:job_stat_exit(), When server brought down or failover while jobs are running.
• is related to: LU-16205 fid2path for encrypted files