Hi all, I found the rbd journaling first send data to journal pool (in append_io_event, and return a future by journaler append) and then(when the append is safe) send to the real data pool. Can someone explain a little more on this. I do not why doing this, why not first to data pool, then to the journal pool? May be put data first in journal pool will let the rbd-mirror sync first? Thanks a lot -- 谦谦君子 -- 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