In a rare event both kolla-ansible and nova-scheduler try to do
the mapping at the same time and one of them fails.
Since kolla-ansible runs host discovery on each deployment,
there is no need to change the default of no periodic host discovery.
I added some notes for future. They are not critical.
I made the decision explicit in the comments.
I changed the task name to satisfy recommendations.
I removed the variable because it is not used (to avoid future doubts).
Closes-Bug: #1832987
Change-Id: I3128472f028a2dbd7ace02abc179a9629ad74ceb
Signed-off-by: Radosław Piliszek <radoslaw.piliszek@gmail.com>
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