[Expired for OpenStack Compute (nova) because there has been no activity
for 60 days.]
** Changed in: nova
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1405294
Title:
Live migration with attached volume peforms breaking rollback on
failure
Status in OpenStack Compute (nova):
Expired
Bug description:
During live migration with attached volume, nova ignores initialize
connection errors and does not roll back.
Steps:
* Create a nova instance
* Attach a cinder volume
* Perform ‘nova live-migration’ to a different backend
-Cause a failure in the ‘initialize_connection’ call to the new host
* Wait for nova to call ‘terminate_connection’ on the connection to the
original host
Result:
* Instance remains on original host with Cinder volume attached according to
Cinder but no longer mapped on the backend. This removes connectivity from
storage to the host and can cause data loss.
Triage:
What seems to be happening is that Nova is not stopping the migration when
receiving an error from Cinder and ends up calling terminate_connection for the
src host when it should not be.
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