6 daemons: [osd.3, osd.4, osd.5]
7 wait-for-healthy: false
11 - ceph osd require-osd-release luminous
12 - print: "**** done `ceph osd require-osd-release luminous`"
15 - ceph osd dump --format=json-pretty | grep "flags"
16 - ceph osd set pglog_hardlimit
17 - ceph osd dump --format=json-pretty | grep "flags"
18 - print: "**** try to set pglog_hardlimit again, should succeed"