Hi, all As I know, rollback is designed for ec-backend to rollback the partial committed transaction like append, stash and attrs. So why do we need to keep and update (can_rollback_to, rollback_info_trimmed_to) every time in _write_log() for ReplicatedBackend? Or it is related to other issues? We may avoid frequently updating those information based on the pool types? Regards Ning Yao -- 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