[LU-13605] Intermediate routers modify the final destination NID

• Type: Bug
• Resolution: Fixed
• Priority: Major
• Fix Version/s: Lustre 2.14.0
• Affects Version/s: Lustre 2.14.0
• Severity: 3
• Assignee: Chris Horn
• Reporter: Chris Horn

Description

MR path selection in a routed environment is supposed to allow the originator of a message to set the final destination NID. However, in a multi-hop envrionment, intermediate routers exercise the same code as the message originator (i.e. they exercise the normal routed send code paths). As such, they can modify the final destination NID.

Comments

[Peter Jones]

Landed for 2.14

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch https://review.whamcloud.com/38731/
Subject: LU-13605 lnet: Do not overwrite destination when routing
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: ec94d6f77b61fe501c1ac8bb6256bd3caff23ad3

[Gerrit Updater]

Chris Horn ([e-mail]) uploaded a new patch: https://review.whamcloud.com/38734
Subject: LU-13605 lnet: Implement MR forwarding
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: fa6effb111c0a7bd4cdcf0f94925382cfae85b53

^Patch pushed against wrong ticket.

[Gerrit Updater]

Chris Horn ([e-mail]) uploaded a new patch: https://review.whamcloud.com/38731
Subject: LU-13605 lnet: Do not overwrite destination when routing
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 6c95d0adf103c7da04ac6b42e0b8749b268c08e4