[LU-13804] LustreError (osd_index.c:1201:osd_dir_delete()) lquake-MDT0000: failed to destroy agent object (0) for the entry data049: rc = -22

• Type: Bug
• Resolution: Not a Bug
• Priority: Minor
• Labels: llnl
• Environment: Lustre 2.10.8 and 2.12.5 ; RHEL 7.8
• Severity: 3
• Assignee: Lai Siyao
• Reporter: Olaf Faaland

Description

jet1 console log reports the following during an I/O SWL (and a few other misc jobs) on Opal:

Jul 15 09:51:54 jet1 kernel: LustreError: 1391:0:(osd_index.c:1201:osd_dir_delete()) lquake-MDT0000: failed to destroy agent object (0) for the entry data049: rc = -22
Jul 15 09:51:54 jet1 kernel: LustreError: 1391:0:(osd_index.c:1201:osd_dir_delete()) Skipped 1 previous similar message
Jul 15 09:51:54 jet1 kernel: LustreError: 17478:0:(osd_index.c:1201:osd_dir_delete()) lquake-MDT0000: failed to destroy agent object (0) for the entry data026: rc = -22
Jul 15 09:51:54 jet1 kernel: LustreError: 17478:0:(osd_index.c:1201:osd_dir_delete()) Skipped 75 previous similar messages

There were no console log messages on Opal that appeared to correspond.  No messages at 09:51, and no unusual messages at all on opal.

Testing both under Lustre 2.10 and Lustre 2.12 included creating striped directories via lfs mkdir -i3 -c4 <target>. Some of these directories were likely created under 2.10 and deleted under 2.12.

Before this occurred, the jet servers had been upgraded from Lustre 2.10 to Lustre 2.12, then downgraded to 2.10, and then upgraded to 2.12 again. Significant I/O was performed between each Lustre version, and changelog users were deregistered and logs cleared.