[LU-9990] MDS fails to mount due to (client.c:96:ptlrpc_uuid_to_connection()) cannot find peer MGC10.37.248.196@o2ib1 _0!

• Type: Bug
• Resolution: Fixed
• Priority: Blocker
• Fix Version/s: Lustre 2.11.0
• Affects Version/s: Lustre 2.11.0
• Environment: Latest lustre 2.10.5X running on RHEL7.4 with default OFED. Using IB for LND.
• Severity: 2
• Assignee: Amir Shehata (Inactive)
• Reporter: James A Simmons

Description

Recently I started to run into issues with the MDT failing to mount randomly. Now with the latest master the MDT fails to mount every single time. Looking at the debug log I noticed the following error on the MDT:

(client.c:96:ptlrpc_uuid_to_connection()) cannot find peer MGC10.37.248.196@o2ib1_0!

Issue Links

• is related to: LU-9933 Hitting ASSERTION in lnet_peer_add_nid()
• is related to: LU-9992 Multi-Rail: use lolnd when sending locally
• is related to: LU-9810 Melanox OFED 4.1 support