hi,all look at the code. case Transaction::OP_MKCOLL: { coll_t cid = i.get_cid(); ...} 1 . what is COLL and cid? is coll is a pg and cid is pgid? 2. what is the relation between cid and 'current/meta'? or what is in current/meta? thanks very much. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.ceph.com/pipermail/ceph-users-ceph.com/attachments/20140804/05c861be/attachment.htm>