On Sun, Mar 6, 2016 at 10:56 PM, min fang <louisfang2013@xxxxxxxxx> wrote: > Dear, I used osd dump to extract osd monmap, and found up_from, up_thru > list, what is the difference between up_from and up_thru? > > osd.0 up in weight 1 up_from 673 up_thru 673 down_at 670 > last_clean_interval [637,669) up_from is when the OSD first became active, after being inactive. up_thru is the last epoch we bothered to write down that it was active. Both of these are important for PG peering but aren't of much use otherwise. -Greg _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com