mon/OSDMonitor: properly set last_force_op_resend in stretch mode

[idryomov]

Setting last_force_op_resend but not last_force_op_resend_prenautilus
and last_force_op_resend_preluminous doesn't make sense. The reverse,
such as

last_force_op_resend = 0
last_force_op_resend_prenautilus = 0
last_force_op_resend_preluminous = 20

or

last_force_op_resend = 0
last_force_op_resend_prenautilus = 40
last_force_op_resend_preluminous = 40

is valid in PG split/merge cases (and is the reason prenautilus and
preluminous fields actually exist and aren't just encoding artifacts),
but, if last_force_op_resend is set, both prenautilus and preluminous
fields should really be set to the same value. Otherwise it basically
amounts to "nautilus+ clients need to resend in-flight ops on stretch
mode transitions but pre-nautilus clients don't" which is bogus as it
leaves pre-nautilus clients exposed to the nastiness that necessitated
employing the force resend hammer in the first place in commit
97fbd19 ("osd: mon: account for stretch bucket configs/changes
when detecting intervals").

Fixes: https://tracker.ceph.com/issues/55158
Signed-off-by: Ilya Dryomov idryomov@gmail.com

Checklist

• Tracker (select at least one)
  • References tracker ticket
  • Very recent bug; references commit where it was introduced
  • New feature (ticket optional)
  • Doc update (no ticket needed)
  • Code cleanup (no ticket needed)
• Component impact
  • Affects Dashboard, opened tracker ticket
  • Affects Orchestrator, opened tracker ticket
  • No impact that needs to be tracked
• Documentation (select at least one)
  • Updates relevant documentation
  • No doc update is appropriate
• Tests (select at least one)
  • Includes unit test(s)
  • Includes integration test(s)
  • Includes bug reproducer
  • No tests

Show available Jenkins commands

• jenkins retest this please
• jenkins test classic perf
• jenkins test crimson perf
• jenkins test signed
• jenkins test make check
• jenkins test make check arm64
• jenkins test submodules
• jenkins test dashboard
• jenkins test dashboard cephadm
• jenkins test api
• jenkins test docs
• jenkins render docs
• jenkins test ceph-volume all
• jenkins test ceph-volume tox
• jenkins test windows

[gregsfortytwo]

Eek! LGTM

I verified there are no other raw uses of last_force_op_resend in the OSDMonitor (and gripping the rest of the repo looks okay, though would take longer to audit).