Added + to 2-workload

Signed-off-by: Yuri Weinstein <yuri.weinstein@inktank.com>
Added "sequential" to  testrados.yaml

Signed-off-by: Yuri Weinstein <yuri.weinstein@inktank.com>
Fixed typo

Signed-off-by: Yuri Weinstein <yuri.weinstein@inktank.com>
Added logging

Signed-off-by: Yuri Weinstein <yuri.weinstein@inktank.com>
Added logging

Signed-off-by: Yuri Weinstein <yuri.weinstein@inktank.com>
Merge pull request #226 from ceph/wip_9691

Wip 9691