[LU-14107] Keep peer representation consistent across LNet and the LNDs

• Status: Open
• Project: Lustre
• Type: Technical task
• Priority: Minor
• Reporter: Serguei Smirnov
• Assignee: Amir Shehata (Inactive)
• Resolution: Unresolved
• Labels: lnet

Description

LNet and the LNDs maintain their own representations of peers and these may get out of sync.

For example, if peer is deleted from LNet (e.g. by running "lnetctl peer del"), the LND still retains the peer and associated connections (easily verified by running "netstat" or the IB equivalent). On the other hand, if peer is brought down and the connections are broken in the LND, LNet still retains the peer.

There are issues with both of these scenarios. The purpose of this task is to come up with a way to make LNet and the LNDs network views more coherent to help avoid these issues.

 

Issue Links

• is related to: LU-11888 Unreachable client NID confusing Lust...