Hi, I'm reading tiering doc here http://ceph.com/docs/firefly/dev/cache-pool/
" The hit_set_count and hit_set_period define how much time each HitSet should cover, and how many such HitSets to store. Binning accesses over time allows Ceph to independently determine whether an object was accessed at least once and whether it was accessed more than once over some time period (“age” vs “temperature”). Note that the longer the period and the higher the count the more RAM will be consumed by the ceph-osd process. In particular, when the agent is active to flush or evict cache objects, all hit_set_count HitSets are loaded into RAM" about how much memory do we talk here ? any formula ? (nr object x ? ) I'm looking for hit_set_period like 12h or 24h _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
