| SetMetadata |
set metat data from storage server Reqeust Cmd: STORAGE_PROTO_CMD_SET_METADATA 13 Body: @ FDFS_PROTO_PKG_LEN_SIZE bytes: filename length @ FDFS_PROTO_PKG_LEN_SIZE bytes: meta data size @ 1 bytes: operation flag, 'O' for overwrite all old metadata 'M' for merge, insert when the meta item not exist, otherwise update it @ FDFS_GROUP_NAME_MAX_LEN bytes: group name @ filename bytes: filename @ meta data bytes: each meta data seperated by \x01, name and value seperated by \x02 Response Cmd: STORAGE_PROTO_CMD_RESP Status: 0 right other wrong Body: |