mirror of
https://gitee.com/milvus-io/milvus.git
synced 2024-12-06 05:49:24 +08:00
c5918290e6
This PR introduces novel importv2 roles for datanode: 1. Executor: To execute tasks, a import task will be divided into the following steps: read data -> hash data -> sync data; 2. Manager: To manage all the tasks; issue: https://github.com/milvus-io/milvus/issues/28521 --------- Signed-off-by: bigsheeper <yihao.dai@zilliz.com>
188 lines
6.1 KiB
Go
188 lines
6.1 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package parquet
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import (
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"context"
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"fmt"
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"github.com/apache/arrow/go/v12/arrow"
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"github.com/apache/arrow/go/v12/parquet/pqarrow"
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"github.com/samber/lo"
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"github.com/milvus-io/milvus-proto/go-api/v2/schemapb"
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"github.com/milvus-io/milvus/pkg/util/merr"
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"github.com/milvus-io/milvus/pkg/util/typeutil"
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)
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func WrapTypeErr(expect string, actual string, field *schemapb.FieldSchema) error {
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return merr.WrapErrImportFailed(
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fmt.Sprintf("expect '%s' type for field '%s', but got '%s' type",
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expect, field.GetName(), actual))
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}
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func calcBufferSize(blockSize int, schema *schemapb.CollectionSchema) int {
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if len(schema.GetFields()) <= 0 {
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return blockSize
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}
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return blockSize / len(schema.GetFields())
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}
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func CreateFieldReaders(ctx context.Context, fileReader *pqarrow.FileReader, schema *schemapb.CollectionSchema) (map[int64]*FieldReader, error) {
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nameToField := lo.KeyBy(schema.GetFields(), func(field *schemapb.FieldSchema) string {
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return field.GetName()
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})
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pqSchema, err := fileReader.Schema()
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if err != nil {
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return nil, merr.WrapErrImportFailed(fmt.Sprintf("get parquet schema failed, err=%v", err))
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}
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crs := make(map[int64]*FieldReader)
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for i, pqField := range pqSchema.Fields() {
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field, ok := nameToField[pqField.Name]
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if !ok {
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// TODO @cai.zhang: handle dynamic field
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return nil, merr.WrapErrImportFailed(fmt.Sprintf("the field: %s is not in schema, "+
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"if it's a dynamic field, please reformat data by bulk_writer", pqField.Name))
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}
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if field.GetIsPrimaryKey() && field.GetAutoID() {
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return nil, merr.WrapErrImportFailed(
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fmt.Sprintf("the primary key '%s' is auto-generated, no need to provide", field.GetName()))
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}
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arrowType, isList := convertArrowSchemaToDataType(pqField, false)
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dataType := field.GetDataType()
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if isList {
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if !typeutil.IsVectorType(dataType) && dataType != schemapb.DataType_Array {
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return nil, WrapTypeErr(dataType.String(), pqField.Type.Name(), field)
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}
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if dataType == schemapb.DataType_Array {
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dataType = field.GetElementType()
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}
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}
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if !isConvertible(arrowType, dataType, isList) {
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return nil, WrapTypeErr(dataType.String(), pqField.Type.Name(), field)
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}
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cr, err := NewFieldReader(ctx, fileReader, i, field)
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if err != nil {
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return nil, err
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}
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if _, ok = crs[field.GetFieldID()]; ok {
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return nil, merr.WrapErrImportFailed(
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fmt.Sprintf("there is multi field with name: %s", field.GetName()))
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}
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crs[field.GetFieldID()] = cr
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}
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for _, field := range nameToField {
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if (field.GetIsPrimaryKey() && field.GetAutoID()) || field.GetIsDynamic() {
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continue
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}
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if _, ok := crs[field.GetFieldID()]; !ok {
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return nil, merr.WrapErrImportFailed(
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fmt.Sprintf("no parquet field for milvus file '%s'", field.GetName()))
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}
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}
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return crs, nil
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}
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func convertArrowSchemaToDataType(field arrow.Field, isList bool) (schemapb.DataType, bool) {
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switch field.Type.ID() {
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case arrow.BOOL:
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return schemapb.DataType_Bool, false
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case arrow.UINT8:
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if isList {
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return schemapb.DataType_BinaryVector, false
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}
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return schemapb.DataType_None, false
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case arrow.INT8:
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return schemapb.DataType_Int8, false
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case arrow.INT16:
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return schemapb.DataType_Int16, false
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case arrow.INT32:
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return schemapb.DataType_Int32, false
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case arrow.INT64:
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return schemapb.DataType_Int64, false
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case arrow.FLOAT16:
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if isList {
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return schemapb.DataType_Float16Vector, false
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}
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return schemapb.DataType_None, false
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case arrow.FLOAT32:
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return schemapb.DataType_Float, false
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case arrow.FLOAT64:
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return schemapb.DataType_Double, false
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case arrow.STRING:
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return schemapb.DataType_VarChar, false
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case arrow.BINARY:
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return schemapb.DataType_BinaryVector, false
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case arrow.LIST:
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elementType, _ := convertArrowSchemaToDataType(field.Type.(*arrow.ListType).ElemField(), true)
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return elementType, true
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default:
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return schemapb.DataType_None, false
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}
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}
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func isConvertible(src, dst schemapb.DataType, isList bool) bool {
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switch src {
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case schemapb.DataType_Bool:
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return typeutil.IsBoolType(dst)
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case schemapb.DataType_Int8:
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return typeutil.IsArithmetic(dst)
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case schemapb.DataType_Int16:
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return typeutil.IsArithmetic(dst) && dst != schemapb.DataType_Int8
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case schemapb.DataType_Int32:
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return typeutil.IsArithmetic(dst) && dst != schemapb.DataType_Int8 && dst != schemapb.DataType_Int16
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case schemapb.DataType_Int64:
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return typeutil.IsFloatingType(dst) || dst == schemapb.DataType_Int64
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case schemapb.DataType_Float:
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if isList && dst == schemapb.DataType_FloatVector {
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return true
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}
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return typeutil.IsFloatingType(dst)
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case schemapb.DataType_Double:
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if isList && dst == schemapb.DataType_FloatVector {
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return true
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}
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return dst == schemapb.DataType_Double
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case schemapb.DataType_String, schemapb.DataType_VarChar:
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return typeutil.IsStringType(dst) || typeutil.IsJSONType(dst)
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case schemapb.DataType_JSON:
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return typeutil.IsJSONType(dst)
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case schemapb.DataType_BinaryVector:
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return dst == schemapb.DataType_BinaryVector
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case schemapb.DataType_Float16Vector:
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return dst == schemapb.DataType_Float16Vector
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default:
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return false
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}
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}
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func estimateReadCountPerBatch(bufferSize int, schema *schemapb.CollectionSchema) (int64, error) {
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sizePerRecord, err := typeutil.EstimateMaxSizePerRecord(schema)
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if err != nil {
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return 0, err
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}
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if 1000*sizePerRecord <= bufferSize {
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return 1000, nil
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}
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return int64(bufferSize) / int64(sizePerRecord), nil
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}
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