[LU-11983] operation mds_connect to node failed: rc = -52

• Type: Bug
• Resolution: Fixed
• Priority: Major
• Affects Version/s: Lustre 2.10.6
• Severity: 2
• Assignee: Hongchao Zhang
• Reporter: Mahmoud Hanafi

Description

Upgrading from 2.10.5 to 2.10.6 we are seeing these messages about every 7 mins.

Feb 20 15:33:39 nbp8-oss22 kernel: [107794.374975] LustreError: 11-0: nbp8-MDT0000-lwp-OST007d: operation mds_connect to node 10.151.27.60@o2ib failed: rc = -52
Feb 20 15:33:39 nbp8-oss22 kernel: [107794.411340] LustreError: Skipped 299 previous similar messages

 

I tried to get debug dump after the error. Its attached to the case. But that errors doesn't show in the debug logs.

 

This is from dmesg

[113475.927136] Lustre: 33169:0:(mdt_handler.c:5340:mdt_connect_internal()) nbp8-MDT0000: client nbp8-MDT0000-lwp-OST0064_UUID does not support ibits lock, either very old or an invalid client: flags 0x2041401043000020
[113475.990096] Lustre: 33169:0:(mdt_handler.c:5340:mdt_connect_internal()) Skipped 4911 previous similar messages