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Live migration in two-node cluster fails from node2 to node1 but succeeded vice versa.

Hello,

I have a two-node Hyper-V Cluster. Both nodes are in domain, cluster health validates with no warnings or errors.
When performing live migration of VM from Node1 to Node2 it succeeds rather quickly.
But when trying to live migrate the same VM from Node2 to Node1 it starts very slowly and at about 70% fails.
In Hyper-V-Worker event log there are some errors:

Failed to send data for a Virtual Machine migration: The device does not recognize the command. (0x80070016)

Failed to send data for a Virtual Machine migration: An existing connection was forcibly closed by the remote host. (0x80072746)

onecore\vm\worker\migration\workertaskmigrationsource.cpp(1142)\vmwp.exe!00007FF78A4372C9: (caller: 00007FF78A43AA15) ReturnHr(63) tid(31f0) 800705B4 This operation returned because the timeout period expired. Msg:[onecore\vm\worker\migration\workertaskmigrationsource.cpp(1065)\vmwp.exe!00007FF78A43710B: (caller: 00007FF78A43AA15) Exception(127) tid(31f0) 800705B4 This operation returned because the timeout period expired. Msg:[Memory transfer pass #1 failed.] CallContext:[\SourceMigrationTask] ] CallContext:[\SourceMigrationTask]

Which way to dig? Does anyone face the same problem?

PS Quick Migration works in both ways, so I guess there're some problems in migrating memory pages of VM... Very strange that two nodes are configured identically, but LM works only one-way

Thank you for your time,
Best regards,
Alexandet

windows-server-hyper-v
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22064747 answered YuhanDeng-MSFT commented

Hi all,
VM and nodes are up-to-date.

The problem disappeared after rebooting both nodes... Now live mirgation runs both ways as it should.

Thank you for your time.
Best regards,
Alexander.

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Hi,
Glad to see this issue fixed. Would you help accept an answer to this question?
If you have any other questions to ask later, please feel free to feedback.

Thanks and best regards,
Danny

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YuhanDeng-MSFT answered

Hi,
It seems that it’s the update issue that caused this.
Would you check your vm and see if they’re up-to-date?
Also please check the event logs and see if there’s anything related.

Thanks for your time.
Best regards,
Danny


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