[LU-785] Gettting found wrong generation error for the same inode

• Type: Bug
• Resolution: Cannot Reproduce
• Priority: Minor
• Affects Version/s: Lustre 1.8.x (1.8.0 - 1.8.5)
• Environment: THIS IS FOR NASA AMES.; MDS running ; SUSE Linux Enterprise Server 10 (x86_64); VERSION = 10; PATCHLEVEL = 2
• Severity: 3

Epic

metadata

• Assignee: Lai Siyao
• Reporter: Mahmoud Hanafi

Description

We are getting the following error on our mds server repeatedly. This error continues to appear even after a MDS reboot.

Oct 21 12:09:18 nbp30-mds kernel: LustreError: 8021:0:(handler.c:275:mds_fid2dentry()) Skipped 599 previous similar messages
Oct 21 12:19:18 nbp30-mds kernel: LustreError: 8020:0:(handler.c:275:mds_fid2dentry()) found wrong generation: inode 209323401, link: 2, count: 1, generation 3543922068/3529758994
Oct 21 12:19:18 nbp30-mds kernel: LustreError: 8020:0:(handler.c:275:mds_fid2dentry()) Skipped 599 previous similar messages
Oct 21 12:29:19 nbp30-mds kernel: LustreError: 9206:0:(handler.c:275:mds_fid2dentry()) found wrong generation: inode 209323401, link: 2, count: 1, generation 3543922068/3529770923
Oct 21 12:29:19 nbp30-mds kernel: LustreError: 9206:0:(handler.c:275:mds_fid2dentry()) Skipped 598 previous similar messages
Oct 21 12:39:20 nbp30-mds kernel: LustreError: 9293:0:(handler.c:275:mds_fid2dentry()) found wrong generation: inode 209323401, link: 2, count: 1, generation 3543922068/3529758994
Oct 21 12:39:20 nbp30-mds kernel: LustreError: 9293:0:(handler.c:275:mds_fid2dentry()) Skipped 599 previous similar messages
Oct 21 12:49:20 nbp30-mds kernel: LustreError: 9238:0:(handler.c:275:mds_fid2dentry()) found wrong generation: inode 209323401, link: 2, count: 1, generation 3543922068/3529758994
Oct 21 12:49:20 nbp30-mds kernel: LustreError: 9238:0:(handler.c:275:mds_fid2dentry()) Skipped 599 previous similar messages
Oct 21 12:59:21 nbp30-mds kernel: LustreError: 9204:0:(handler.c:275:mds_fid2dentry()) found wrong generation: inode 209323401, link: 2, count: 1, generation 3543922068/3529758994
Oct 21 12:59:21 nbp30-mds kernel: LustreError: 9204:0:(handler.c:275:mds_fid2dentry()) Skipped 598 previous similar messages

Issue Links

• Trackbacks: Lustre 1.8.x known issues tracker While testing against Lustre b18 branch, we would hit known bugs which were already reported in Lustre Bugzilla https://bugzilla.lustre.org/. In order to move away from relying on Bugzilla, we would create a JIRA