import logging import time import datetime import json from collections import defaultdict import ujson import multiprocessing from concurrent.futures import ThreadPoolExecutor from milvus.grpc_gen import milvus_pb2, milvus_pb2_grpc, status_pb2 from milvus.grpc_gen.milvus_pb2 import TopKQueryResult from milvus.client import types as Types from milvus import MetricType from mishards import (db, settings, exceptions) from mishards.grpc_utils import mark_grpc_method from mishards.grpc_utils.grpc_args_parser import GrpcArgsParser as Parser from mishards import utilities logger = logging.getLogger(__name__) class ServiceHandler(milvus_pb2_grpc.MilvusServiceServicer): MAX_NPROBE = 2048 MAX_TOPK = 2048 def __init__(self, tracer, router, max_workers=multiprocessing.cpu_count(), **kwargs): self.table_meta = {} self.error_handlers = {} self.tracer = tracer self.router = router self.max_workers = max_workers def _reduce(self, source_ids, ids, source_diss, diss, k, reverse): if source_diss[k - 1] <= diss[0]: return source_ids, source_diss if diss[k - 1] <= source_diss[0]: return ids, diss source_diss.extend(diss) diss_t = enumerate(source_diss) diss_m_rst = sorted(diss_t, key=lambda x: x[1])[:k] diss_m_out = [id_ for _, id_ in diss_m_rst] source_ids.extend(ids) id_m_out = [source_ids[i] for i, _ in diss_m_rst] return id_m_out, diss_m_out def _do_merge(self, files_n_topk_results, topk, reverse=False, **kwargs): status = status_pb2.Status(error_code=status_pb2.SUCCESS, reason="Success") if not files_n_topk_results: return status, [], [] merge_id_results = [] merge_dis_results = [] calc_time = time.time() for files_collection in files_n_topk_results: if isinstance(files_collection, tuple): status, _ = files_collection return status, [], [] if files_collection.status.error_code != 0: return files_collection.status, [], [] row_num = files_collection.row_num # row_num is equal to 0, result is empty if not row_num: continue ids = files_collection.ids diss = files_collection.distances # distance collections # TODO: batch_len is equal to topk, may need to compare with topk batch_len = len(ids) // row_num for row_index in range(row_num): id_batch = ids[row_index * batch_len: (row_index + 1) * batch_len] dis_batch = diss[row_index * batch_len: (row_index + 1) * batch_len] if len(merge_id_results) < row_index: raise ValueError("merge error") elif len(merge_id_results) == row_index: # TODO: may bug here merge_id_results.append(id_batch) merge_dis_results.append(dis_batch) else: merge_id_results[row_index], merge_dis_results[row_index] = \ self._reduce(merge_id_results[row_index], id_batch, merge_dis_results[row_index], dis_batch, batch_len, reverse) calc_time = time.time() - calc_time logger.info('Merge takes {}'.format(calc_time)) id_mrege_list = [] dis_mrege_list = [] for id_results, dis_results in zip(merge_id_results, merge_dis_results): id_mrege_list.extend(id_results) dis_mrege_list.extend(dis_results) return status, id_mrege_list, dis_mrege_list def _do_query(self, context, table_id, table_meta, vectors, topk, search_params, partition_tags=None, **kwargs): metadata = kwargs.get('metadata', None) routing = {} p_span = None if self.tracer.empty else context.get_active_span( ).context with self.tracer.start_span('get_routing', child_of=p_span): routing = self.router.routing(table_id, partition_tags=partition_tags, metadata=metadata) logger.info('Routing: {}'.format(routing)) metadata = kwargs.get('metadata', None) rs = [] all_topk_results = [] def search(addr, table_id, file_ids, vectors, topk, params, **kwargs): logger.info( 'Send Search Request: addr={};table_id={};ids={};nq={};topk={};params={}' .format(addr, table_id, file_ids, len(vectors), topk, params)) conn = self.router.query_conn(addr, metadata=metadata) start = time.time() span = kwargs.get('span', None) span = span if span else (None if self.tracer.empty else context.get_active_span().context) with self.tracer.start_span('search_{}'.format(addr), child_of=span): ret = conn.conn.search_vectors_in_files(collection_name=table_id, file_ids=file_ids, query_records=vectors, top_k=topk, params=params) if ret.status.error_code != 0: logger.error("Search fail {}".format(ret.status)) end = time.time() all_topk_results.append(ret) with self.tracer.start_span('do_search', child_of=p_span) as span: with ThreadPoolExecutor(max_workers=self.max_workers) as pool: for addr, file_ids in routing.items(): res = pool.submit(search, addr, table_id, file_ids, vectors, topk, search_params, span=span) rs.append(res) for res in rs: res.result() reverse = table_meta.metric_type == Types.MetricType.IP with self.tracer.start_span('do_merge', child_of=p_span): return self._do_merge(all_topk_results, topk, reverse=reverse, metadata=metadata) def _create_table(self, table_schema): return self.router.connection().create_collection(table_schema) @mark_grpc_method def CreateTable(self, request, context): _status, unpacks = Parser.parse_proto_TableSchema(request) if not _status.OK(): return status_pb2.Status(error_code=_status.code, reason=_status.message) _status, _table_schema = unpacks # if _status.error_code != 0: # logging.warning('[CreateTable] table schema error occurred: {}'.format(_status)) # return _status logger.info('CreateTable {}'.format(_table_schema['collection_name'])) _status = self._create_table(_table_schema) return status_pb2.Status(error_code=_status.code, reason=_status.message) def _has_table(self, table_name, metadata=None): return self.router.connection(metadata=metadata).has_collection(table_name) @mark_grpc_method def HasTable(self, request, context): _status, _table_name = Parser.parse_proto_TableName(request) if not _status.OK(): return milvus_pb2.BoolReply(status=status_pb2.Status( error_code=_status.code, reason=_status.message), bool_reply=False) logger.info('HasTable {}'.format(_table_name)) _status, _bool = self._has_table(_table_name, metadata={'resp_class': milvus_pb2.BoolReply}) return milvus_pb2.BoolReply(status=status_pb2.Status( error_code=_status.code, reason=_status.message), bool_reply=_bool) @mark_grpc_method def CreatePartition(self, request, context): _table_name, _tag = Parser.parse_proto_PartitionParam(request) _status = self.router.connection().create_partition(_table_name, _tag) return status_pb2.Status(error_code=_status.code, reason=_status.message) @mark_grpc_method def DropPartition(self, request, context): _table_name, _tag = Parser.parse_proto_PartitionParam(request) _status = self.router.connection().drop_partition(_table_name, _tag) return status_pb2.Status(error_code=_status.code, reason=_status.message) @mark_grpc_method def ShowPartitions(self, request, context): _status, _table_name = Parser.parse_proto_TableName(request) if not _status.OK(): return milvus_pb2.PartitionList(status=status_pb2.Status( error_code=_status.code, reason=_status.message), partition_array=[]) logger.info('ShowPartitions {}'.format(_table_name)) _status, partition_array = self.router.connection().show_partitions(_table_name) return milvus_pb2.PartitionList(status=status_pb2.Status( error_code=_status.code, reason=_status.message), partition_tag_array=[param.tag for param in partition_array]) def _delete_table(self, table_name): return self.router.connection().drop_collection(table_name) @mark_grpc_method def DropTable(self, request, context): _status, _table_name = Parser.parse_proto_TableName(request) if not _status.OK(): return status_pb2.Status(error_code=_status.code, reason=_status.message) logger.info('DropTable {}'.format(_table_name)) _status = self._delete_table(_table_name) return status_pb2.Status(error_code=_status.code, reason=_status.message) def _create_index(self, table_name, index_type, param): return self.router.connection().create_index(table_name, index_type, param) @mark_grpc_method def CreateIndex(self, request, context): _status, unpacks = Parser.parse_proto_IndexParam(request) if not _status.OK(): return status_pb2.Status(error_code=_status.code, reason=_status.message) _table_name, _index_type, _index_param = unpacks logger.info('CreateIndex {}'.format(_table_name)) # TODO: interface create_table incompleted _status = self._create_index(_table_name, _index_type, _index_param) return status_pb2.Status(error_code=_status.code, reason=_status.message) def _add_vectors(self, param, metadata=None): return self.router.connection(metadata=metadata).add_vectors( None, None, insert_param=param) @mark_grpc_method def Insert(self, request, context): logger.info('Insert') # TODO: Ths SDK interface add_vectors() could update, add a key 'row_id_array' _status, _ids = self._add_vectors( metadata={'resp_class': milvus_pb2.VectorIds}, param=request) return milvus_pb2.VectorIds(status=status_pb2.Status( error_code=_status.code, reason=_status.message), vector_id_array=_ids) @mark_grpc_method def Search(self, request, context): metadata = {'resp_class': milvus_pb2.TopKQueryResult} table_name = request.table_name topk = request.topk if len(request.extra_params) == 0: raise exceptions.SearchParamError(message="Search parma loss", metadata=metadata) params = ujson.loads(str(request.extra_params[0].value)) logger.info('Search {}: topk={} params={}'.format( table_name, topk, params)) # if nprobe > self.MAX_NPROBE or nprobe <= 0: # raise exceptions.InvalidArgumentError( # message='Invalid nprobe: {}'.format(nprobe), metadata=metadata) if topk > self.MAX_TOPK or topk <= 0: raise exceptions.InvalidTopKError( message='Invalid topk: {}'.format(topk), metadata=metadata) table_meta = self.table_meta.get(table_name, None) if not table_meta: status, info = self.router.connection( metadata=metadata).describe_collection(table_name) if not status.OK(): raise exceptions.TableNotFoundError(table_name, metadata=metadata) self.table_meta[table_name] = info table_meta = info start = time.time() query_record_array = [] if int(table_meta.metric_type) >= MetricType.HAMMING.value: for query_record in request.query_record_array: query_record_array.append(bytes(query_record.binary_data)) else: for query_record in request.query_record_array: query_record_array.append(list(query_record.float_data)) status, id_results, dis_results = self._do_query(context, table_name, table_meta, query_record_array, topk, params, partition_tags=getattr(request, "partition_tag_array", []), metadata=metadata) now = time.time() logger.info('SearchVector takes: {}'.format(now - start)) topk_result_list = milvus_pb2.TopKQueryResult( status=status_pb2.Status(error_code=status.error_code, reason=status.reason), row_num=len(request.query_record_array) if len(id_results) else 0, ids=id_results, distances=dis_results) return topk_result_list @mark_grpc_method def SearchInFiles(self, request, context): raise NotImplemented() def _describe_table(self, table_name, metadata=None): return self.router.connection(metadata=metadata).describe_collection(table_name) @mark_grpc_method def DescribeTable(self, request, context): _status, _table_name = Parser.parse_proto_TableName(request) if not _status.OK(): return milvus_pb2.TableSchema(status=status_pb2.Status( error_code=_status.code, reason=_status.message), ) metadata = {'resp_class': milvus_pb2.TableSchema} logger.info('DescribeTable {}'.format(_table_name)) _status, _table = self._describe_table(metadata=metadata, table_name=_table_name) if _status.OK(): return milvus_pb2.TableSchema( table_name=_table_name, index_file_size=_table.index_file_size, dimension=_table.dimension, metric_type=_table.metric_type, status=status_pb2.Status(error_code=_status.code, reason=_status.message), ) return milvus_pb2.TableSchema( table_name=_table_name, status=status_pb2.Status(error_code=_status.code, reason=_status.message), ) def _table_info(self, table_name, metadata=None): return self.router.connection(metadata=metadata).collection_info(table_name) @mark_grpc_method def ShowTableInfo(self, request, context): _status, _table_name = Parser.parse_proto_TableName(request) if not _status.OK(): return milvus_pb2.TableInfo(status=status_pb2.Status( error_code=_status.code, reason=_status.message), ) metadata = {'resp_class': milvus_pb2.TableInfo} logger.info('ShowTableInfo {}'.format(_table_name)) _status, _info = self._table_info(metadata=metadata, table_name=_table_name) if _status.OK(): _table_info = milvus_pb2.TableInfo( status=status_pb2.Status(error_code=_status.code, reason=_status.message), total_row_count=_info.count ) for par_stat in _info.partitions_stat: _par = milvus_pb2.PartitionStat( tag=par_stat.tag, total_row_count=par_stat.count ) for seg_stat in par_stat.segments_stat: _par.segments_stat.add( segment_name=seg_stat.segment_name, row_count=seg_stat.count, index_name=seg_stat.index_name, data_size=seg_stat.data_size, ) _table_info.partitions_stat.append(_par) return _table_info return milvus_pb2.TableInfo( status=status_pb2.Status(error_code=_status.code, reason=_status.message), ) def _count_table(self, table_name, metadata=None): return self.router.connection( metadata=metadata).count_collection(table_name) @mark_grpc_method def CountTable(self, request, context): _status, _table_name = Parser.parse_proto_TableName(request) if not _status.OK(): status = status_pb2.Status(error_code=_status.code, reason=_status.message) return milvus_pb2.TableRowCount(status=status) logger.info('CountTable {}'.format(_table_name)) metadata = {'resp_class': milvus_pb2.TableRowCount} _status, _count = self._count_table(_table_name, metadata=metadata) return milvus_pb2.TableRowCount( status=status_pb2.Status(error_code=_status.code, reason=_status.message), table_row_count=_count if isinstance(_count, int) else -1) def _get_server_version(self, metadata=None): return self.router.connection(metadata=metadata).server_version() def _cmd(self, cmd, metadata=None): return self.router.connection(metadata=metadata)._cmd(cmd) @mark_grpc_method def Cmd(self, request, context): _status, _cmd = Parser.parse_proto_Command(request) logger.info('Cmd: {}'.format(_cmd)) if not _status.OK(): return milvus_pb2.StringReply(status=status_pb2.Status( error_code=_status.code, reason=_status.message)) metadata = {'resp_class': milvus_pb2.StringReply} if _cmd == 'conn_stats': stats = self.router.readonly_topo.stats() return milvus_pb2.StringReply(status=status_pb2.Status( error_code=status_pb2.SUCCESS), string_reply=json.dumps(stats, indent=2)) # if _cmd == 'version': # _status, _reply = self._get_server_version(metadata=metadata) # else: # _status, _reply = self.router.connection( # metadata=metadata).server_status() _status, _reply = self._cmd(_cmd, metadata=metadata) return milvus_pb2.StringReply(status=status_pb2.Status( error_code=_status.code, reason=_status.message), string_reply=_reply) def _show_tables(self, metadata=None): return self.router.connection(metadata=metadata).show_collections() @mark_grpc_method def ShowTables(self, request, context): logger.info('ShowTables') metadata = {'resp_class': milvus_pb2.TableName} _status, _results = self._show_tables(metadata=metadata) return milvus_pb2.TableNameList(status=status_pb2.Status( error_code=_status.code, reason=_status.message), table_names=_results) def _preload_table(self, table_name): return self.router.connection().preload_collection(table_name) @mark_grpc_method def PreloadTable(self, request, context): _status, _table_name = Parser.parse_proto_TableName(request) if not _status.OK(): return status_pb2.Status(error_code=_status.code, reason=_status.message) logger.info('PreloadTable {}'.format(_table_name)) _status = self._preload_table(_table_name) return status_pb2.Status(error_code=_status.code, reason=_status.message) def _describe_index(self, table_name, metadata=None): return self.router.connection(metadata=metadata).describe_index(table_name) @mark_grpc_method def DescribeIndex(self, request, context): _status, _table_name = Parser.parse_proto_TableName(request) if not _status.OK(): return milvus_pb2.IndexParam(status=status_pb2.Status( error_code=_status.code, reason=_status.message)) metadata = {'resp_class': milvus_pb2.IndexParam} logger.info('DescribeIndex {}'.format(_table_name)) _status, _index_param = self._describe_index(table_name=_table_name, metadata=metadata) if not _index_param: return milvus_pb2.IndexParam(status=status_pb2.Status( error_code=_status.code, reason=_status.message)) _index_type = _index_param._index_type grpc_index = milvus_pb2.IndexParam(status=status_pb2.Status( error_code=_status.code, reason=_status.message), table_name=_table_name, index_type=_index_type) grpc_index.extra_params.add(key='params', value=ujson.dumps(_index_param._params)) return grpc_index def _get_vector_by_id(self, table_name, vec_id, metadata): return self.router.connection(metadata=metadata).get_vector_by_id(table_name, vec_id) @mark_grpc_method def GetVectorByID(self, request, context): _status, unpacks = Parser.parse_proto_VectorIdentity(request) if not _status.OK(): return status_pb2.Status(error_code=_status.code, reason=_status.message) metadata = {'resp_class': milvus_pb2.VectorData} _table_name, _id = unpacks logger.info('GetVectorByID {}'.format(_table_name)) _status, vector = self._get_vector_by_id(_table_name, _id, metadata) if not vector: return milvus_pb2.VectorData(status=status_pb2.Status( error_code=_status.code, reason=_status.message), ) if isinstance(vector, bytes): records = milvus_pb2.RowRecord(binary_data=vector) else: records = milvus_pb2.RowRecord(float_data=vector) return milvus_pb2.VectorData(status=status_pb2.Status( error_code=_status.code, reason=_status.message), vector_data=records ) def _get_vector_ids(self, table_name, segment_name, metadata): return self.router.connection(metadata=metadata).get_vector_ids(table_name, segment_name) @mark_grpc_method def GetVectorIDs(self, request, context): _status, unpacks = Parser.parse_proto_GetVectorIDsParam(request) if not _status.OK(): return status_pb2.Status(error_code=_status.code, reason=_status.message) metadata = {'resp_class': milvus_pb2.VectorIds} _table_name, _segment_name = unpacks logger.info('GetVectorIDs {}'.format(_table_name)) _status, ids = self._get_vector_ids(_table_name, _segment_name, metadata) if not ids: return milvus_pb2.VectorIds(status=status_pb2.Status( error_code=_status.code, reason=_status.message), ) return milvus_pb2.VectorIds(status=status_pb2.Status( error_code=_status.code, reason=_status.message), vector_id_array=ids ) def _delete_by_id(self, table_name, id_array): return self.router.connection().delete_by_id(table_name, id_array) @mark_grpc_method def DeleteByID(self, request, context): _status, unpacks = Parser.parse_proto_DeleteByIDParam(request) if not _status.OK(): logging.error('DeleteByID {}'.format(_status.message)) return status_pb2.Status(error_code=_status.code, reason=_status.message) _table_name, _ids = unpacks logger.info('DeleteByID {}'.format(_table_name)) _status = self._delete_by_id(_table_name, _ids) return status_pb2.Status(error_code=_status.code, reason=_status.message) def _drop_index(self, table_name): return self.router.connection().drop_index(table_name) @mark_grpc_method def DropIndex(self, request, context): _status, _table_name = Parser.parse_proto_TableName(request) if not _status.OK(): return status_pb2.Status(error_code=_status.code, reason=_status.message) logger.info('DropIndex {}'.format(_table_name)) _status = self._drop_index(_table_name) return status_pb2.Status(error_code=_status.code, reason=_status.message) def _flush(self, table_names): return self.router.connection().flush(table_names) @mark_grpc_method def Flush(self, request, context): _status, _table_names = Parser.parse_proto_FlushParam(request) if not _status.OK(): return status_pb2.Status(error_code=_status.code, reason=_status.message) logger.info('Flush {}'.format(_table_names)) _status = self._flush(_table_names) return status_pb2.Status(error_code=_status.code, reason=_status.message) def _compact(self, table_name): return self.router.connection().compact(table_name) @mark_grpc_method def Compact(self, request, context): _status, _table_name = Parser.parse_proto_TableName(request) if not _status.OK(): return status_pb2.Status(error_code=_status.code, reason=_status.message) logger.info('Compact {}'.format(_table_name)) _status = self._compact(_table_name) return status_pb2.Status(error_code=_status.code, reason=_status.message)