The cells job has started failing at a pretty high rate since devstack
was changed to use systemd by default on 5/1 and that's using the new
OSJournalHandler in oslo.log 3.26.0.
I don't know why this primarily affects the cells job though.
135 hits since 5/1, check and gate, master branch only. It's not 100%
failure probably because sometimes when this happens it's during
the delete of a server in tempest cleanup and the test no longer cares
about the state of the instance.
Change-Id: Ib07db71f8675fc6b4ea48f8f62dd0a8a7a1880d8
Related-Bug: #1580728
Matt Riedemann