mirror of
https://gitee.com/milvus-io/milvus.git
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2f691f1e67
See also #33787 The parsing delete log is distributed in lots of places, which is not recommended and hard to maintain. This PR abstract common parsing logic into `DeleteLog.Parse` method to unify implementation and make it easier to replace json parsing lib. Signed-off-by: Congqi Xia <congqi.xia@zilliz.com> --------- Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
545 lines
14 KiB
Go
545 lines
14 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 storage
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import (
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"bytes"
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"encoding/binary"
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"encoding/json"
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"fmt"
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"io"
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"sort"
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"strconv"
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"github.com/apache/arrow/go/v12/arrow"
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"github.com/apache/arrow/go/v12/arrow/array"
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"github.com/apache/arrow/go/v12/arrow/memory"
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"github.com/milvus-io/milvus-proto/go-api/v2/schemapb"
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"github.com/milvus-io/milvus/pkg/common"
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"github.com/milvus-io/milvus/pkg/util/merr"
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"github.com/milvus-io/milvus/pkg/util/metautil"
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"github.com/milvus-io/milvus/pkg/util/typeutil"
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)
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var _ RecordReader = (*compositeBinlogRecordReader)(nil)
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type compositeBinlogRecordReader struct {
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blobs [][]*Blob
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blobPos int
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rrs []array.RecordReader
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closers []func()
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fields []FieldID
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r compositeRecord
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}
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func (crr *compositeBinlogRecordReader) iterateNextBatch() error {
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if crr.closers != nil {
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for _, close := range crr.closers {
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if close != nil {
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close()
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}
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}
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}
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crr.blobPos++
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if crr.blobPos >= len(crr.blobs[0]) {
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return io.EOF
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}
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for i, b := range crr.blobs {
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reader, err := NewBinlogReader(b[crr.blobPos].Value)
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if err != nil {
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return err
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}
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crr.fields[i] = reader.FieldID
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// TODO: assert schema being the same in every blobs
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crr.r.schema[reader.FieldID] = reader.PayloadDataType
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er, err := reader.NextEventReader()
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if err != nil {
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return err
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}
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rr, err := er.GetArrowRecordReader()
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if err != nil {
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return err
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}
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crr.rrs[i] = rr
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crr.closers[i] = func() {
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rr.Release()
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er.Close()
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reader.Close()
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}
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}
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return nil
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}
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func (crr *compositeBinlogRecordReader) Next() error {
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if crr.rrs == nil {
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if crr.blobs == nil || len(crr.blobs) == 0 {
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return io.EOF
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}
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crr.rrs = make([]array.RecordReader, len(crr.blobs))
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crr.closers = make([]func(), len(crr.blobs))
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crr.blobPos = -1
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crr.fields = make([]FieldID, len(crr.rrs))
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crr.r = compositeRecord{
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recs: make(map[FieldID]arrow.Record, len(crr.rrs)),
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schema: make(map[FieldID]schemapb.DataType, len(crr.rrs)),
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}
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if err := crr.iterateNextBatch(); err != nil {
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return err
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}
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}
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composeRecord := func() bool {
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for i, rr := range crr.rrs {
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if ok := rr.Next(); !ok {
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return false
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}
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// compose record
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crr.r.recs[crr.fields[i]] = rr.Record()
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}
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return true
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}
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// Try compose records
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if ok := composeRecord(); !ok {
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// If failed the first time, try iterate next batch (blob), the error may be io.EOF
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if err := crr.iterateNextBatch(); err != nil {
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return err
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}
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// If iterate next batch success, try compose again
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if ok := composeRecord(); !ok {
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// If the next blob is empty, return io.EOF (it's rare).
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return io.EOF
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}
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}
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return nil
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}
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func (crr *compositeBinlogRecordReader) Record() Record {
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return &crr.r
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}
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func (crr *compositeBinlogRecordReader) Close() {
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for _, close := range crr.closers {
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if close != nil {
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close()
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}
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}
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}
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func parseBlobKey(blobKey string) (colId FieldID, logId UniqueID) {
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if _, _, _, colId, logId, ok := metautil.ParseInsertLogPath(blobKey); ok {
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return colId, logId
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}
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if colId, err := strconv.ParseInt(blobKey, 10, 64); err == nil {
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// data_codec.go generate single field id as blob key.
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return colId, 0
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}
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return InvalidUniqueID, InvalidUniqueID
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}
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func newCompositeBinlogRecordReader(blobs []*Blob) (*compositeBinlogRecordReader, error) {
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blobMap := make(map[FieldID][]*Blob)
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for _, blob := range blobs {
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colId, _ := parseBlobKey(blob.Key)
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if _, exists := blobMap[colId]; !exists {
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blobMap[colId] = []*Blob{blob}
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} else {
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blobMap[colId] = append(blobMap[colId], blob)
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}
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}
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sortedBlobs := make([][]*Blob, 0, len(blobMap))
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for _, blobsForField := range blobMap {
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sort.Slice(blobsForField, func(i, j int) bool {
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_, iLog := parseBlobKey(blobsForField[i].Key)
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_, jLog := parseBlobKey(blobsForField[j].Key)
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return iLog < jLog
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})
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sortedBlobs = append(sortedBlobs, blobsForField)
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}
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return &compositeBinlogRecordReader{
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blobs: sortedBlobs,
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}, nil
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}
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func NewBinlogDeserializeReader(blobs []*Blob, PKfieldID UniqueID) (*DeserializeReader[*Value], error) {
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reader, err := newCompositeBinlogRecordReader(blobs)
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if err != nil {
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return nil, err
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}
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return NewDeserializeReader(reader, func(r Record, v []*Value) error {
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// Note: the return value `Value` is reused.
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for i := 0; i < r.Len(); i++ {
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value := v[i]
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if value == nil {
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value = &Value{}
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value.Value = make(map[FieldID]interface{}, len(r.Schema()))
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v[i] = value
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}
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m := value.Value.(map[FieldID]interface{})
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for j, dt := range r.Schema() {
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if r.Column(j).IsNull(i) {
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m[j] = nil
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} else {
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d, ok := serdeMap[dt].deserialize(r.Column(j), i)
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if ok {
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m[j] = d // TODO: avoid memory copy here.
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} else {
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return merr.WrapErrServiceInternal(fmt.Sprintf("unexpected type %s", dt))
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}
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}
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}
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rowID, ok := m[common.RowIDField].(int64)
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if !ok {
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return merr.WrapErrIoKeyNotFound("no row id column found")
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}
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value.ID = rowID
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value.Timestamp = m[common.TimeStampField].(int64)
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pk, err := GenPrimaryKeyByRawData(m[PKfieldID], r.Schema()[PKfieldID])
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if err != nil {
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return err
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}
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value.PK = pk
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value.IsDeleted = false
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value.Value = m
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}
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return nil
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}), nil
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}
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func NewDeltalogDeserializeReader(blobs []*Blob) (*DeserializeReader[*DeleteLog], error) {
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reader, err := newCompositeBinlogRecordReader(blobs)
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if err != nil {
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return nil, err
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}
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return NewDeserializeReader(reader, func(r Record, v []*DeleteLog) error {
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var fid FieldID // The only fid from delete file
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for k := range r.Schema() {
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fid = k
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break
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}
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for i := 0; i < r.Len(); i++ {
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if v[i] == nil {
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v[i] = &DeleteLog{}
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}
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a := r.Column(fid).(*array.String)
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strVal := a.Value(i)
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if err := v[i].Parse(strVal); err != nil {
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return err
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}
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}
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return nil
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}), nil
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}
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type BinlogStreamWriter struct {
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collectionID UniqueID
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partitionID UniqueID
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segmentID UniqueID
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fieldSchema *schemapb.FieldSchema
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memorySize int // To be updated on the fly
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buf bytes.Buffer
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rw *singleFieldRecordWriter
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}
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func (bsw *BinlogStreamWriter) GetRecordWriter() (RecordWriter, error) {
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if bsw.rw != nil {
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return bsw.rw, nil
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}
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fid := bsw.fieldSchema.FieldID
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dim, _ := typeutil.GetDim(bsw.fieldSchema)
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rw, err := newSingleFieldRecordWriter(fid, arrow.Field{
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Name: strconv.Itoa(int(fid)),
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Type: serdeMap[bsw.fieldSchema.DataType].arrowType(int(dim)),
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Nullable: true, // No nullable check here.
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}, &bsw.buf)
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if err != nil {
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return nil, err
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}
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bsw.rw = rw
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return rw, nil
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}
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func (bsw *BinlogStreamWriter) Finalize() (*Blob, error) {
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if bsw.rw == nil {
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return nil, io.ErrUnexpectedEOF
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}
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bsw.rw.Close()
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var b bytes.Buffer
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if err := bsw.writeBinlogHeaders(&b); err != nil {
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return nil, err
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}
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if _, err := b.Write(bsw.buf.Bytes()); err != nil {
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return nil, err
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}
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return &Blob{
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Key: strconv.Itoa(int(bsw.fieldSchema.FieldID)),
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Value: b.Bytes(),
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RowNum: int64(bsw.rw.numRows),
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MemorySize: int64(bsw.memorySize),
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}, nil
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}
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func (bsw *BinlogStreamWriter) writeBinlogHeaders(w io.Writer) error {
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// Write magic number
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if err := binary.Write(w, common.Endian, MagicNumber); err != nil {
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return err
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}
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// Write descriptor
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de := newDescriptorEvent()
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de.PayloadDataType = bsw.fieldSchema.DataType
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de.CollectionID = bsw.collectionID
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de.PartitionID = bsw.partitionID
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de.SegmentID = bsw.segmentID
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de.FieldID = bsw.fieldSchema.FieldID
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de.StartTimestamp = 0
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de.EndTimestamp = 0
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de.descriptorEventData.AddExtra(originalSizeKey, strconv.Itoa(bsw.memorySize))
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if err := de.Write(w); err != nil {
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return err
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}
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// Write event header
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eh := newEventHeader(InsertEventType)
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// Write event data
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ev := newInsertEventData()
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ev.StartTimestamp = 1
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ev.EndTimestamp = 1
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eh.EventLength = int32(bsw.buf.Len()) + eh.GetMemoryUsageInBytes() + int32(binary.Size(ev))
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// eh.NextPosition = eh.EventLength + w.Offset()
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if err := eh.Write(w); err != nil {
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return err
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}
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if err := ev.WriteEventData(w); err != nil {
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return err
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}
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return nil
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}
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func NewBinlogStreamWriters(collectionID, partitionID, segmentID UniqueID,
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schema []*schemapb.FieldSchema,
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) map[FieldID]*BinlogStreamWriter {
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bws := make(map[FieldID]*BinlogStreamWriter, len(schema))
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for _, f := range schema {
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bws[f.FieldID] = &BinlogStreamWriter{
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collectionID: collectionID,
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partitionID: partitionID,
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segmentID: segmentID,
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fieldSchema: f,
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}
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}
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return bws
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}
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func NewBinlogSerializeWriter(schema *schemapb.CollectionSchema, partitionID, segmentID UniqueID,
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eventWriters map[FieldID]*BinlogStreamWriter, batchSize int,
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) (*SerializeWriter[*Value], error) {
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rws := make(map[FieldID]RecordWriter, len(eventWriters))
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for fid := range eventWriters {
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w := eventWriters[fid]
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rw, err := w.GetRecordWriter()
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if err != nil {
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return nil, err
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}
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rws[fid] = rw
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}
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compositeRecordWriter := newCompositeRecordWriter(rws)
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return NewSerializeRecordWriter[*Value](compositeRecordWriter, func(v []*Value) (Record, uint64, error) {
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builders := make(map[FieldID]array.Builder, len(schema.Fields))
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types := make(map[FieldID]schemapb.DataType, len(schema.Fields))
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for _, f := range schema.Fields {
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dim, _ := typeutil.GetDim(f)
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builders[f.FieldID] = array.NewBuilder(memory.DefaultAllocator, serdeMap[f.DataType].arrowType(int(dim)))
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types[f.FieldID] = f.DataType
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}
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var memorySize uint64
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for _, vv := range v {
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m := vv.Value.(map[FieldID]any)
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for fid, e := range m {
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typeEntry, ok := serdeMap[types[fid]]
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if !ok {
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panic("unknown type")
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}
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ok = typeEntry.serialize(builders[fid], e)
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if !ok {
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return nil, 0, merr.WrapErrServiceInternal(fmt.Sprintf("serialize error on type %s", types[fid]))
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}
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eventWriters[fid].memorySize += int(typeEntry.sizeof(e))
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memorySize += typeEntry.sizeof(e)
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}
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}
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arrays := make([]arrow.Array, len(types))
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fields := make([]arrow.Field, len(types))
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field2Col := make(map[FieldID]int, len(types))
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i := 0
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for fid, builder := range builders {
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arrays[i] = builder.NewArray()
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builder.Release()
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fields[i] = arrow.Field{
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Name: strconv.Itoa(int(fid)),
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Type: arrays[i].DataType(),
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Nullable: true, // No nullable check here.
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}
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field2Col[fid] = i
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i++
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}
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return newSimpleArrowRecord(array.NewRecord(arrow.NewSchema(fields, nil), arrays, int64(len(v))), types, field2Col), memorySize, nil
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}, batchSize), nil
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}
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type DeltalogStreamWriter struct {
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collectionID UniqueID
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partitionID UniqueID
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segmentID UniqueID
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memorySize int // To be updated on the fly
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buf bytes.Buffer
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rw *singleFieldRecordWriter
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}
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func (dsw *DeltalogStreamWriter) GetRecordWriter() (RecordWriter, error) {
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if dsw.rw != nil {
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return dsw.rw, nil
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}
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rw, err := newSingleFieldRecordWriter(0, arrow.Field{
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Name: "delta",
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Type: arrow.BinaryTypes.String,
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Nullable: false,
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}, &dsw.buf)
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if err != nil {
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return nil, err
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}
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dsw.rw = rw
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return rw, nil
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}
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func (dsw *DeltalogStreamWriter) Finalize() (*Blob, error) {
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if dsw.rw == nil {
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return nil, io.ErrUnexpectedEOF
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}
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dsw.rw.Close()
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var b bytes.Buffer
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if err := dsw.writeDeltalogHeaders(&b); err != nil {
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return nil, err
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}
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if _, err := b.Write(dsw.buf.Bytes()); err != nil {
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return nil, err
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}
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return &Blob{
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Value: b.Bytes(),
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RowNum: int64(dsw.rw.numRows),
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MemorySize: int64(dsw.memorySize),
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}, nil
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}
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func (dsw *DeltalogStreamWriter) writeDeltalogHeaders(w io.Writer) error {
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// Write magic number
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if err := binary.Write(w, common.Endian, MagicNumber); err != nil {
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return err
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}
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// Write descriptor
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de := newDescriptorEvent()
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de.PayloadDataType = schemapb.DataType_String
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de.CollectionID = dsw.collectionID
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de.PartitionID = dsw.partitionID
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de.SegmentID = dsw.segmentID
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de.StartTimestamp = 0
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de.EndTimestamp = 0
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de.descriptorEventData.AddExtra(originalSizeKey, strconv.Itoa(dsw.memorySize))
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if err := de.Write(w); err != nil {
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return err
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}
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// Write event header
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eh := newEventHeader(DeleteEventType)
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// Write event data
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ev := newDeleteEventData()
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ev.StartTimestamp = 1
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ev.EndTimestamp = 1
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eh.EventLength = int32(dsw.buf.Len()) + eh.GetMemoryUsageInBytes() + int32(binary.Size(ev))
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// eh.NextPosition = eh.EventLength + w.Offset()
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if err := eh.Write(w); err != nil {
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return err
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}
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if err := ev.WriteEventData(w); err != nil {
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return err
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}
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return nil
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}
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func NewDeltalogStreamWriter(collectionID, partitionID, segmentID UniqueID) *DeltalogStreamWriter {
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return &DeltalogStreamWriter{
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collectionID: collectionID,
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partitionID: partitionID,
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segmentID: segmentID,
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}
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}
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func NewDeltalogSerializeWriter(partitionID, segmentID UniqueID, eventWriter *DeltalogStreamWriter, batchSize int,
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) (*SerializeWriter[*DeleteLog], error) {
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rws := make(map[FieldID]RecordWriter, 1)
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rw, err := eventWriter.GetRecordWriter()
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if err != nil {
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return nil, err
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}
|
|
rws[0] = rw
|
|
compositeRecordWriter := newCompositeRecordWriter(rws)
|
|
return NewSerializeRecordWriter[*DeleteLog](compositeRecordWriter, func(v []*DeleteLog) (Record, uint64, error) {
|
|
builder := array.NewBuilder(memory.DefaultAllocator, arrow.BinaryTypes.String)
|
|
|
|
var memorySize uint64
|
|
for _, vv := range v {
|
|
strVal, err := json.Marshal(vv)
|
|
if err != nil {
|
|
return nil, memorySize, err
|
|
}
|
|
|
|
builder.AppendValueFromString(string(strVal))
|
|
memorySize += uint64(len(strVal))
|
|
}
|
|
arr := []arrow.Array{builder.NewArray()}
|
|
field := []arrow.Field{{
|
|
Name: "delta",
|
|
Type: arrow.BinaryTypes.String,
|
|
Nullable: false,
|
|
}}
|
|
field2Col := map[FieldID]int{
|
|
0: 0,
|
|
}
|
|
schema := map[FieldID]schemapb.DataType{
|
|
0: schemapb.DataType_String,
|
|
}
|
|
return newSimpleArrowRecord(array.NewRecord(arrow.NewSchema(field, nil), arr, int64(len(v))), schema, field2Col), memorySize, nil
|
|
}, batchSize), nil
|
|
}
|