OpenStack Compute (nova)

  1. Bug #1327497
  2. Comment #3

Comment 3 for bug 1327497

Revision history for this message
OpenStack Infra (hudson-openstack) wrote : Fix merged to nova (master)

Reviewed: https://review.openstack.org/98738
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=3ea14e8a70a946dbb162ecafa848e4f2fa29772a
Submitter: Jenkins
Branch: master

commit 3ea14e8a70a946dbb162ecafa848e4f2fa29772a
Author: Jeegn Chen <email address hidden>
Date: Sun Jun 8 16:23:36 2014 +0800

    Fix live-migration failure in FC multipath case

    Currently, /dev/dm-<NUM> instead of /dev/mapper/<multipath_id> is
    used to access multipath FC volumes by Compute Node and
    multipath_id in connection_info is not maintained properly and
    may be lost during connection refreshing.

    This implementation will make source Compute Node and destination
    Compute Node fail to disconnect/connect to volumes properly and
    result in live-migration failure.

    To fix it, /dev/mapper<multipath_id> will be used instead of
    /dev/dm-<NUM> to access multipath devices, just like iSCSI multipath
    implementation, and logic to preserve the unique (across Compute
    Nodes) multipath_id is also added.

    Change-Id: I17f15852c098af88afd270084c62eb87693c60d4
    Closes-Bug: #1327497