If start osd process first and then mark it in, the
pg state may remain all active+clean when doing
wait_for_clean() check, which may fail the next
osd_scrub_pgs() process.
So faster pg state change by marking osd in first.
Signed-off-by: huangjun <huangjun@xsky.com>
The helper gets a sequence number from the osd (or osds), and then
polls the mon until that seq is reflected there.
This is overkill in some cases, since many tests only require that the
stats be reflected on the mgr (not the mon), but waiting for it to also
reach the mon is sufficient!
Signed-off-by: Sage Weil <sage@redhat.com>
