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[Tiago Rodrigues de Mello <1271102@xxxxxxxxxxxxxxxxxx>]

** Changed in: nova
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1271102

Title:
  If live_migration failed, VM stay in state "MIGRATING"

Status in OpenStack Compute (Nova):
  Invalid

Bug description:
  During the live_migration, if a InvalidSharedStorage is raised, the VM stay in MIGRATING state.
  The sequence of calls between services is the following (the request is a live_migration from <<Compute src>> to <<Compute dest>>):
  <<Scheduler>> (rpc call)-> <<Compute dest>> : check_can_live_migrate_destination
  <<Compute dest>> (rpc call) -> <<Compute src>> : check_can_live_migrate_source

  Exception InvalidSharedStorage raised by <<Compute src>> is deserialised by <<Compute dest>> as InvalidSharedStorage_Remote. 
  Exception InvalidSharedStorage_Remote raised by <<Compute dest>> is deserialised by <<Scheduler>> as RemoteError.
  So the rollback on status is not done by <<Scheduler>>

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