[LU-8532] syslog errors: MDT0000-osd: FID != self_fid

• Type: Bug
• Resolution: Duplicate
• Priority: Major
• Affects Version/s: Lustre 2.7.0
• Environment: CentOS-6.8; kernel-2.6.32-573.26.1.el6.20160517.x86_64.lustre272; lustre-2.7.2-2nasS_mofed32v1.el67.20160517v2
• Severity: 3
• Assignee: nasf (Inactive)
• Reporter: Nathan Dauchy (Inactive)

Description

Seeing many messages in the syslog like the following:

Aug 23 17:28:44 nbp6-mds kernel: Lustre: nbp6-MDT0000-osd: FID [0x2000779c5:0x12801:0x0] != self_fid [0x2000779c8:0x1738c:0x0]
Aug 23 17:30:17 nbp6-mds kernel: Lustre: nbp6-MDT0000-osd: FID [0x2000779ce:0x13c40:0x0] != self_fid [0x2000779db:0x4d0:0x0]
Aug 23 17:30:29 nbp6-mds kernel: Lustre: nbp6-MDT0000-osd: FID [0x2000779c7:0xde64:0x0] != self_fid [0x2000779c3:0x1c3eb:0x0]
Aug 23 17:31:03 nbp6-mds kernel: Lustre: nbp6-MDT0000-osd: FID [0x2000779d6:0x577b:0x0] != self_fid [0x2000779c3:0x1c53a:0x0]

Perhaps this is similar to LU-6465, which was listed as critical and affecting version 2.7, yet may only have landed a patch for 2.8?

The counts of recent occurrences for our production MDTs are...

# pdsh -w nbp[1,2,6,9]-mds,nbp[7,8]-mds1 'grep -c " != self_fid " /var/log/messages' | sort
nbp1-mds: 1
nbp2-mds: 59
nbp6-mds: 1607
nbp7-mds1: 3
nbp8-mds1: 139
nbp9-mds: 101