Temporal failure of multipath command causes live-migration failure

Bug #1700694 reported by TetsuoTSUJII on 2017-06-27
This bug affects 1 person
Affects Status Importance Assigned to Milestone

Bug Description

The multipath command somehow return "code 1" and it causes live-migration operations to fail.

* method name
  find_multipath_device of initiator/linuxscsi.py
* raw command
  multipath -l <device>

The root cause of returning "code 1" is not clear and very difficult to investigate...
I think if the multipath command is repeated (at least once again), we can avoid this temporal problem.

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