there are two callbacks: committed and applied, committed means write to all replica's journal, applied means write to all replica's file system. so when applied callback return to client, it means data can be read.
2015-12-31 10:15 GMT+08:00 min fang <louisfang2...@gmail.com>: > Hi, as my understanding, write IO will committed data to journal firstly, > then give a safe callback to ceph client. So it is possible that data still > in journal when I send a read IO to the same area. So what data will be > returned if the new data still in journal? > > Thanks. > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
