[LU-10127] DNE MDT goes back in time after failover, recovery

• Type: Bug
• Resolution: Cannot Reproduce
• Priority: Major
• Affects Version/s: Lustre 2.11.0
• Labels: soak
• Environment: soak cluster
• Severity: 3
• Assignee: WC Triage
• Reporter: Cliff White (Inactive)

Description

After MDT0003 was successfully failed over, various clients reported transaction issues

/scratch/logs/syslog/soak-27.log:Oct 17 13:50:47 soak-27 kernel: LustreError: 1917:0:(import.c:1264:ptlrpc_connect_interpret()) soaked-MDT0003_UUID went back in time (transno 60130146272 was previously committed, server now claims 55835485611)!  See https://bugzilla.lustre.org/show_bug.cgi?id=9646
/scratch/logs/syslog/soak-30.log:Oct 17 13:50:48 soak-30 kernel: LustreError: 2448:0:(import.c:1264:ptlrpc_connect_interpret()) soaked-MDT0003_UUID went back in time (transno 60130146275 was previously committed, server now claims 60130146239)!  See https://bugzilla.lustre.org/show_bug.cgi?id=9646
/scratch/logs/syslog/soak-18.log:Oct 17 13:50:50 soak-18 kernel: LustreError: 1966:0:(import.c:1264:ptlrpc_connect_interpret()) soaked-MDT0003_UUID went back in time (transno 60130146271 was previously committed, server now claims 60130108709)!  See https://bugzilla.lustre.org/show_bug.cgi?id=9646
/scratch/logs/syslog/soak-31.log:Oct 17 13:50:50 soak-31 kernel: LustreError: 2451:0:(import.c:1264:ptlrpc_connect_interpret()) soaked-MDT0003_UUID went back in time (transno 60130146276 was previously committed, server now claims 60130108711)!  See https://bugzilla.lustre.org/show_bug.cgi?id=9646
/scratch/logs/syslog/soak-25.log:Oct 17 13:50:51 soak-25 kernel: LustreError: 1862:0:(import.c:1264:ptlrpc_connect_interpret()) soaked-MDT0003_UUID went back in time (transno 60130134563 was previously committed, server now claims 55850633401)!  See https://bugzilla.lustre.org/show_bug.cgi?id=9646
/scratch/logs/syslog/soak-28.log:Oct 17 13:50:51 soak-28 kernel: LustreError: 1937:0:(import.c:1264:ptlrpc_connect_interpret()) soaked-MDT0003_UUID went back in time (transno 60130146273 was previously committed, server now claims 55850712527)!  See https://bugzilla.lustre.org/show_bug.cgi?id=9646