[LU-13471] LNet: discovery can glitch Created: 22/Apr/20  Updated: 20/Sep/20  Resolved: 20/May/20

Status: Resolved
Project: Lustre
Component/s: None
Affects Version/s: None
Fix Version/s: Lustre 2.14.0, Lustre 2.12.6

Type: Bug Priority: Minor
Reporter: Amir Shehata (Inactive) Assignee: Amir Shehata (Inactive)
Resolution: Fixed Votes: 0
Labels: None

Severity: 3
Rank (Obsolete): 9223372036854775807

 Description   

When discovery is initiated from a MR node to another MR peer, we will send the GET message from source NID-A, but the PUSH message from source NID-B. The PUSH will not be recognize because the peer doesn't have any record of NID-B yet and will drop the push. This will result in asymmetric information. The MR node will have a record for the peer NIDs, but the peer will not have a record of the node's NIDs.



 Comments   
Comment by Gerrit Updater [ 23/Apr/20 ]

Amir Shehata (ashehata@whamcloud.com) uploaded a new patch: https://review.whamcloud.com/38320
Subject: LU-13471 lnet: use the same src nid for discovery
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: c13de96b44dd7141607569254736c68ed4382424

Comment by Gerrit Updater [ 20/May/20 ]

Oleg Drokin (green@whamcloud.com) merged in patch https://review.whamcloud.com/38320/
Subject: LU-13471 lnet: use the same src nid for discovery
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 71ca66bcd9c3a08edfbb67c9711c17428f599bcf

Comment by Peter Jones [ 20/May/20 ]

Landed for 2.14

Comment by Gerrit Updater [ 05/Aug/20 ]

Amir Shehata (ashehata@whamcloud.com) uploaded a new patch: https://review.whamcloud.com/39576
Subject: LU-13471 lnet: use the same src nid for discovery
Project: fs/lustre-release
Branch: b2_12
Current Patch Set: 1
Commit: 3eb1edad41c9d291a100b7f099bbf49dc6d6f366

Comment by Gerrit Updater [ 19/Sep/20 ]

Oleg Drokin (green@whamcloud.com) merged in patch https://review.whamcloud.com/39576/
Subject: LU-13471 lnet: use the same src nid for discovery
Project: fs/lustre-release
Branch: b2_12
Current Patch Set:
Commit: b4b93d26c9b89d4f57614ed81e6959b6c9d0b3d7

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