Comment 5 for bug 1810690

Problems with DB start at
           2019-01-05T11:49:56 ./undercloud/var/log/containers/mysql/mariadb.log.txt.gz 213 [Warning] Aborted connection 213 to db: 'heat' user: 'heat' host: 'undercloud.localdomain' (Got an error reading communication packets)

While the 2nd deployment starts to do its idempotency check at 2019-01-05 11:58:16.952
So this does not look like the result of overlapping deployments.