Public bug reported:
The recently merged patch (https://review.openstack.org/484949) runs the
migration in the driver's init_host() method. It has since been pointed
out that if there are multiple computes handling ironic, some instances
can get skipped if the hash ring is refreshed and an unmigrated instance
is placed on a compute whose init_host has already run. While a rare
thing, this should be corrected to ensure that all instances have their
flavors migrated in Pike.
** Affects: nova
Importance: Medium
Assignee: Ed Leafe (ed-leafe)
Status: In Progress
** Tags: ironic note-to-self
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https://bugs.launchpad.net/bugs/1707021
Title:
Ironic Flavor Migration can miss instances
Status in OpenStack Compute (nova):
In Progress
Bug description:
The recently merged patch (https://review.openstack.org/484949) runs
the migration in the driver's init_host() method. It has since been
pointed out that if there are multiple computes handling ironic, some
instances can get skipped if the hash ring is refreshed and an
unmigrated instance is placed on a compute whose init_host has already
run. While a rare thing, this should be corrected to ensure that all
instances have their flavors migrated in Pike.
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https://bugs.launchpad.net/nova/+bug/1707021/+subscriptions
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