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[Bug 1175366] [NEW] Fibre Channel Multipath attach race condition

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Launchpad Bug Tracker <1175366@xxxxxxxxxxxxxxxxxx>
Date: Wed, 01 May 2013 22:20:21 -0000
Reply-to: Bug 1175366 <1175366@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

You have been subscribed to a public bug:

When the system is under load and a Fibre Channel attach happens with
multipath installed, sometimes only 1 devices shows up under multipath
-l command.   This causes the detach to fail to detach all of the
devices since the libvirt volume code runs multipath -l at attach time,
and not all devices show up at that time due to system load and/or FC
fabric traffic.

We need to rediscover all of the devices at detach time and ensure we
are removing all of those devices.   The devices should exist at detach
time.

** Affects: nova
     Importance: Undecided
     Assignee: Walt Boring (walter-boring)
         Status: New

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Fibre Channel Multipath attach race condition
https://bugs.launchpad.net/bugs/1175366
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