Fixes #9769, added overrides for legacy crush tunables

Signed-off-by: Yuri Weinstein <yuri.weinstein@inktank.com>
Put clients on different nodes to avoid conflict running with import_export.sh

Signed-off-by: Yuri Weinstein <yuri.weinstein@inktank.com>
Prep PR to address "mon warn on legacy crush tunables: false" issue

Signed-off-by: Yuri Weinstein <yuri.weinstein@inktank.com>
Switched claint's nodes

Signed-off-by: Yuri Weinstein <yuri.weinstein@inktank.com>
Merge branch 'firefly' of https://github.com/ceph/ceph-qa-suite into wip-9769
Fixes #9769, the upgrade sequence upgrades osds first and then the mds at the end

Signed-off-by: Yuri Weinstein <yuri.weinstein@inktank.com>
Merge pull request #194 from ceph/wip-9769

Wip 9769