Sage's paper will give you what you want, you find it on ceph.com: http://ceph.com/papers/weil-thesis.pdf On 19 November 2014 20:33, Ding Dinghua <dingdinghua85@xxxxxxxxx> wrote: > Hi: > I'm new to ceph and when I 'm reading ceph code, I find it > hard to understand the semantics of PG::info::last_update and > PG::info::last_complete (even after reading the comments in code..), > so would you please give a explanation on the two fields and their > semantics and their usage ? > and: When last_complete will be unequal with last_update? > Many thanks. > > -- > Ding Dinghua > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Dong Yuan Email:yuandong1222@xxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
