2024-05-23 09:53:40 +08:00
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// SegmentInsertBuffer can be reused to buffer all insert data of one segment
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// buffer.Serialize will serialize the InsertBuffer and clear it
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// pkstats keeps tracking pkstats of the segment until Finish
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package compaction
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import (
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2024-08-30 11:29:01 +08:00
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"context"
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2024-05-23 09:53:40 +08:00
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"math"
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2024-09-06 11:50:23 +08:00
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"github.com/samber/lo"
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2024-05-23 09:53:40 +08:00
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"go.uber.org/atomic"
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2024-08-30 11:29:01 +08:00
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"go.uber.org/zap"
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2024-05-23 09:53:40 +08:00
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"github.com/milvus-io/milvus-proto/go-api/v2/schemapb"
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2024-08-30 11:29:01 +08:00
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"github.com/milvus-io/milvus/internal/allocator"
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"github.com/milvus-io/milvus/internal/flushcommon/io"
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2024-07-22 11:33:51 +08:00
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"github.com/milvus-io/milvus/internal/flushcommon/writebuffer"
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2024-08-30 11:29:01 +08:00
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"github.com/milvus-io/milvus/internal/proto/datapb"
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2024-05-23 09:53:40 +08:00
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"github.com/milvus-io/milvus/internal/proto/etcdpb"
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"github.com/milvus-io/milvus/internal/storage"
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"github.com/milvus-io/milvus/pkg/log"
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"github.com/milvus-io/milvus/pkg/util/paramtable"
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"github.com/milvus-io/milvus/pkg/util/typeutil"
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)
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2024-08-30 11:29:01 +08:00
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// Not concurrent safe.
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type MultiSegmentWriter struct {
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binlogIO io.BinlogIO
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allocator *compactionAlloactor
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writers []*SegmentWriter
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current int
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maxRows int64
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segmentSize int64
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// segmentSize in Bytes
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// segmentSize might be changed dynamicly. To make sure a compaction plan is static,
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// The target segmentSize is defined when creating the compaction plan.
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schema *schemapb.CollectionSchema
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partitionID int64
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collectionID int64
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channel string
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cachedMeta map[typeutil.UniqueID]map[typeutil.UniqueID]*datapb.FieldBinlog
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// segID -> fieldID -> binlogs
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res []*datapb.CompactionSegment
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2024-09-09 14:23:05 +08:00
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// DONOT leave it empty of all segments are deleted, just return a segment with zero meta for datacoord
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2024-08-30 11:29:01 +08:00
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}
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type compactionAlloactor struct {
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segmentAlloc allocator.Interface
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logIDAlloc allocator.Interface
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}
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func NewCompactionAllocator(segmentAlloc, logIDAlloc allocator.Interface) *compactionAlloactor {
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return &compactionAlloactor{
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segmentAlloc: segmentAlloc,
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logIDAlloc: logIDAlloc,
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}
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}
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func (alloc *compactionAlloactor) allocSegmentID() (typeutil.UniqueID, error) {
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return alloc.segmentAlloc.AllocOne()
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}
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func (alloc *compactionAlloactor) getLogIDAllocator() allocator.Interface {
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return alloc.logIDAlloc
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}
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func NewMultiSegmentWriter(binlogIO io.BinlogIO, allocator *compactionAlloactor, plan *datapb.CompactionPlan, maxRows int64, partitionID, collectionID int64) *MultiSegmentWriter {
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return &MultiSegmentWriter{
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binlogIO: binlogIO,
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allocator: allocator,
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writers: make([]*SegmentWriter, 0),
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current: -1,
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maxRows: maxRows, // For bloomfilter only
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segmentSize: plan.GetMaxSize(),
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schema: plan.GetSchema(),
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partitionID: partitionID,
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collectionID: collectionID,
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channel: plan.GetChannel(),
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cachedMeta: make(map[typeutil.UniqueID]map[typeutil.UniqueID]*datapb.FieldBinlog),
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res: make([]*datapb.CompactionSegment, 0),
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}
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}
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func (w *MultiSegmentWriter) finishCurrent() error {
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writer := w.writers[w.current]
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allBinlogs, ok := w.cachedMeta[writer.segmentID]
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if !ok {
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allBinlogs = make(map[typeutil.UniqueID]*datapb.FieldBinlog)
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}
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if !writer.FlushAndIsEmpty() {
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kvs, partialBinlogs, err := serializeWrite(context.TODO(), w.allocator.getLogIDAllocator(), writer)
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if err != nil {
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return err
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}
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if err := w.binlogIO.Upload(context.TODO(), kvs); err != nil {
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return err
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}
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mergeFieldBinlogs(allBinlogs, partialBinlogs)
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}
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sPath, err := statSerializeWrite(context.TODO(), w.binlogIO, w.allocator.getLogIDAllocator(), writer)
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if err != nil {
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return err
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}
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w.res = append(w.res, &datapb.CompactionSegment{
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SegmentID: writer.GetSegmentID(),
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InsertLogs: lo.Values(allBinlogs),
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Field2StatslogPaths: []*datapb.FieldBinlog{sPath},
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NumOfRows: writer.GetRowNum(),
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Channel: w.channel,
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})
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log.Info("Segment writer flushed a segment",
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zap.Int64("segmentID", writer.GetSegmentID()),
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zap.String("channel", w.channel),
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zap.Int64("totalRows", writer.GetRowNum()),
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zap.Int64("totalSize", writer.GetTotalSize()))
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w.cachedMeta[writer.segmentID] = nil
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return nil
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}
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func (w *MultiSegmentWriter) addNewWriter() error {
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newSegmentID, err := w.allocator.allocSegmentID()
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if err != nil {
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return err
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}
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writer, err := NewSegmentWriter(w.schema, w.maxRows, newSegmentID, w.partitionID, w.collectionID)
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if err != nil {
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return err
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}
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w.writers = append(w.writers, writer)
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w.current++
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return nil
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}
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func (w *MultiSegmentWriter) getWriter() (*SegmentWriter, error) {
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if len(w.writers) == 0 {
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if err := w.addNewWriter(); err != nil {
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return nil, err
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}
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return w.writers[w.current], nil
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}
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if w.writers[w.current].GetTotalSize() > w.segmentSize {
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if err := w.finishCurrent(); err != nil {
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return nil, err
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}
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if err := w.addNewWriter(); err != nil {
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return nil, err
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}
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}
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return w.writers[w.current], nil
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}
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func (w *MultiSegmentWriter) Write(v *storage.Value) error {
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writer, err := w.getWriter()
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if err != nil {
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return err
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}
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if writer.IsFull() {
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// init segment fieldBinlogs if it is not exist
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if _, ok := w.cachedMeta[writer.segmentID]; !ok {
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w.cachedMeta[writer.segmentID] = make(map[typeutil.UniqueID]*datapb.FieldBinlog)
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}
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kvs, partialBinlogs, err := serializeWrite(context.TODO(), w.allocator.getLogIDAllocator(), writer)
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if err != nil {
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return err
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}
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if err := w.binlogIO.Upload(context.TODO(), kvs); err != nil {
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return err
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}
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mergeFieldBinlogs(w.cachedMeta[writer.segmentID], partialBinlogs)
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}
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return writer.Write(v)
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}
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|
2024-09-09 14:23:05 +08:00
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func (w *MultiSegmentWriter) appendEmptySegment() error {
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writer, err := w.getWriter()
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if err != nil {
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return err
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}
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w.res = append(w.res, &datapb.CompactionSegment{
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SegmentID: writer.GetSegmentID(),
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NumOfRows: 0,
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Channel: w.channel,
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})
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return nil
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}
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// DONOT return an empty list if every insert of the segment is deleted,
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// append an empty segment instead
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2024-08-30 11:29:01 +08:00
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func (w *MultiSegmentWriter) Finish() ([]*datapb.CompactionSegment, error) {
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if w.current == -1 {
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2024-09-09 14:23:05 +08:00
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if err := w.appendEmptySegment(); err != nil {
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return nil, err
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}
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2024-08-30 11:29:01 +08:00
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return w.res, nil
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}
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if !w.writers[w.current].FlushAndIsEmpty() {
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if err := w.finishCurrent(); err != nil {
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return nil, err
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}
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}
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return w.res, nil
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}
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2024-06-06 14:33:52 +08:00
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func NewSegmentDeltaWriter(segmentID, partitionID, collectionID int64) *SegmentDeltaWriter {
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return &SegmentDeltaWriter{
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deleteData: &storage.DeleteData{},
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segmentID: segmentID,
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partitionID: partitionID,
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collectionID: collectionID,
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tsFrom: math.MaxUint64,
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tsTo: 0,
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}
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}
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type SegmentDeltaWriter struct {
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deleteData *storage.DeleteData
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segmentID int64
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partitionID int64
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collectionID int64
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tsFrom typeutil.Timestamp
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tsTo typeutil.Timestamp
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}
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func (w *SegmentDeltaWriter) GetCollectionID() int64 {
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return w.collectionID
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}
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func (w *SegmentDeltaWriter) GetPartitionID() int64 {
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return w.partitionID
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}
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func (w *SegmentDeltaWriter) GetSegmentID() int64 {
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return w.segmentID
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}
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func (w *SegmentDeltaWriter) GetRowNum() int64 {
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return w.deleteData.RowCount
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}
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func (w *SegmentDeltaWriter) GetTimeRange() *writebuffer.TimeRange {
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return writebuffer.NewTimeRange(w.tsFrom, w.tsTo)
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}
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func (w *SegmentDeltaWriter) updateRange(ts typeutil.Timestamp) {
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if ts < w.tsFrom {
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w.tsFrom = ts
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}
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if ts > w.tsTo {
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w.tsTo = ts
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}
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}
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func (w *SegmentDeltaWriter) Write(pk storage.PrimaryKey, ts typeutil.Timestamp) {
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w.deleteData.Append(pk, ts)
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w.updateRange(ts)
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}
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func (w *SegmentDeltaWriter) WriteBatch(pks []storage.PrimaryKey, tss []typeutil.Timestamp) {
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w.deleteData.AppendBatch(pks, tss)
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for _, ts := range tss {
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w.updateRange(ts)
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}
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}
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func (w *SegmentDeltaWriter) Finish() (*storage.Blob, *writebuffer.TimeRange, error) {
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blob, err := storage.NewDeleteCodec().Serialize(w.collectionID, w.partitionID, w.segmentID, w.deleteData)
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if err != nil {
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return nil, nil, err
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}
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return blob, w.GetTimeRange(), nil
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}
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|
2024-05-23 09:53:40 +08:00
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type SegmentWriter struct {
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writer *storage.SerializeWriter[*storage.Value]
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closers []func() (*storage.Blob, error)
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tsFrom typeutil.Timestamp
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tsTo typeutil.Timestamp
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pkstats *storage.PrimaryKeyStats
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segmentID int64
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partitionID int64
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collectionID int64
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sch *schemapb.CollectionSchema
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rowCount *atomic.Int64
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2024-08-30 11:29:01 +08:00
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syncedSize *atomic.Int64
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2024-05-23 09:53:40 +08:00
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}
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func (w *SegmentWriter) GetRowNum() int64 {
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return w.rowCount.Load()
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}
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func (w *SegmentWriter) GetCollectionID() int64 {
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return w.collectionID
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}
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func (w *SegmentWriter) GetPartitionID() int64 {
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return w.partitionID
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}
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func (w *SegmentWriter) GetSegmentID() int64 {
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return w.segmentID
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}
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func (w *SegmentWriter) GetPkID() int64 {
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return w.pkstats.FieldID
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}
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|
2024-06-10 21:34:08 +08:00
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func (w *SegmentWriter) WrittenMemorySize() uint64 {
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return w.writer.WrittenMemorySize()
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}
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|
2024-05-23 09:53:40 +08:00
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func (w *SegmentWriter) Write(v *storage.Value) error {
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ts := typeutil.Timestamp(v.Timestamp)
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if ts < w.tsFrom {
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w.tsFrom = ts
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}
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if ts > w.tsTo {
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w.tsTo = ts
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}
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w.pkstats.Update(v.PK)
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w.rowCount.Inc()
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return w.writer.Write(v)
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}
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|
2024-08-30 11:29:01 +08:00
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func (w *SegmentWriter) Finish() (*storage.Blob, error) {
|
2024-05-23 09:53:40 +08:00
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w.writer.Flush()
|
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|
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codec := storage.NewInsertCodecWithSchema(&etcdpb.CollectionMeta{ID: w.collectionID, Schema: w.sch})
|
2024-08-30 11:29:01 +08:00
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|
return codec.SerializePkStats(w.pkstats, w.GetRowNum())
|
2024-05-23 09:53:40 +08:00
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}
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func (w *SegmentWriter) IsFull() bool {
|
2024-06-21 17:30:01 +08:00
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|
|
return w.writer.WrittenMemorySize() > paramtable.Get().DataNodeCfg.BinLogMaxSize.GetAsUint64()
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}
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func (w *SegmentWriter) FlushAndIsFull() bool {
|
2024-05-23 09:53:40 +08:00
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|
|
w.writer.Flush()
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|
|
|
return w.writer.WrittenMemorySize() > paramtable.Get().DataNodeCfg.BinLogMaxSize.GetAsUint64()
|
|
|
|
}
|
|
|
|
|
2024-09-02 14:19:03 +08:00
|
|
|
func (w *SegmentWriter) FlushAndIsFullWithBinlogMaxSize(binLogMaxSize uint64) bool {
|
|
|
|
w.writer.Flush()
|
|
|
|
return w.writer.WrittenMemorySize() > binLogMaxSize
|
|
|
|
}
|
|
|
|
|
2024-05-23 09:53:40 +08:00
|
|
|
func (w *SegmentWriter) IsEmpty() bool {
|
2024-06-21 17:30:01 +08:00
|
|
|
return w.writer.WrittenMemorySize() == 0
|
|
|
|
}
|
|
|
|
|
|
|
|
func (w *SegmentWriter) FlushAndIsEmpty() bool {
|
2024-05-23 09:53:40 +08:00
|
|
|
w.writer.Flush()
|
|
|
|
return w.writer.WrittenMemorySize() == 0
|
|
|
|
}
|
|
|
|
|
|
|
|
func (w *SegmentWriter) GetTimeRange() *writebuffer.TimeRange {
|
|
|
|
return writebuffer.NewTimeRange(w.tsFrom, w.tsTo)
|
|
|
|
}
|
|
|
|
|
|
|
|
func (w *SegmentWriter) SerializeYield() ([]*storage.Blob, *writebuffer.TimeRange, error) {
|
|
|
|
w.writer.Flush()
|
|
|
|
w.writer.Close()
|
|
|
|
|
|
|
|
fieldData := make([]*storage.Blob, len(w.closers))
|
|
|
|
for i, f := range w.closers {
|
|
|
|
blob, err := f()
|
|
|
|
if err != nil {
|
|
|
|
return nil, nil, err
|
|
|
|
}
|
|
|
|
fieldData[i] = blob
|
|
|
|
}
|
|
|
|
|
|
|
|
tr := w.GetTimeRange()
|
|
|
|
w.clear()
|
|
|
|
|
|
|
|
return fieldData, tr, nil
|
|
|
|
}
|
|
|
|
|
2024-08-30 11:29:01 +08:00
|
|
|
func (w *SegmentWriter) GetTotalSize() int64 {
|
|
|
|
return w.syncedSize.Load() + int64(w.writer.WrittenMemorySize())
|
|
|
|
}
|
|
|
|
|
2024-05-23 09:53:40 +08:00
|
|
|
func (w *SegmentWriter) clear() {
|
2024-08-30 11:29:01 +08:00
|
|
|
w.syncedSize.Add(int64(w.writer.WrittenMemorySize()))
|
|
|
|
|
2024-05-23 09:53:40 +08:00
|
|
|
writer, closers, _ := newBinlogWriter(w.collectionID, w.partitionID, w.segmentID, w.sch)
|
|
|
|
w.writer = writer
|
|
|
|
w.closers = closers
|
|
|
|
w.tsFrom = math.MaxUint64
|
|
|
|
w.tsTo = 0
|
|
|
|
}
|
|
|
|
|
|
|
|
func NewSegmentWriter(sch *schemapb.CollectionSchema, maxCount int64, segID, partID, collID int64) (*SegmentWriter, error) {
|
|
|
|
writer, closers, err := newBinlogWriter(collID, partID, segID, sch)
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
|
2024-08-30 11:29:01 +08:00
|
|
|
pkField, err := typeutil.GetPrimaryFieldSchema(sch)
|
|
|
|
if err != nil {
|
2024-05-23 09:53:40 +08:00
|
|
|
log.Warn("failed to get pk field from schema")
|
2024-08-30 11:29:01 +08:00
|
|
|
return nil, err
|
2024-05-23 09:53:40 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
stats, err := storage.NewPrimaryKeyStats(pkField.GetFieldID(), int64(pkField.GetDataType()), maxCount)
|
|
|
|
if err != nil {
|
|
|
|
return nil, err
|
|
|
|
}
|
|
|
|
|
|
|
|
segWriter := SegmentWriter{
|
|
|
|
writer: writer,
|
|
|
|
closers: closers,
|
|
|
|
tsFrom: math.MaxUint64,
|
|
|
|
tsTo: 0,
|
|
|
|
|
|
|
|
pkstats: stats,
|
|
|
|
sch: sch,
|
|
|
|
segmentID: segID,
|
|
|
|
partitionID: partID,
|
|
|
|
collectionID: collID,
|
|
|
|
rowCount: atomic.NewInt64(0),
|
2024-08-30 11:29:01 +08:00
|
|
|
syncedSize: atomic.NewInt64(0),
|
2024-05-23 09:53:40 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
return &segWriter, nil
|
|
|
|
}
|
|
|
|
|
|
|
|
func newBinlogWriter(collID, partID, segID int64, schema *schemapb.CollectionSchema,
|
|
|
|
) (writer *storage.SerializeWriter[*storage.Value], closers []func() (*storage.Blob, error), err error) {
|
|
|
|
fieldWriters := storage.NewBinlogStreamWriters(collID, partID, segID, schema.Fields)
|
|
|
|
closers = make([]func() (*storage.Blob, error), 0, len(fieldWriters))
|
|
|
|
for _, w := range fieldWriters {
|
|
|
|
closers = append(closers, w.Finalize)
|
|
|
|
}
|
2024-08-30 11:29:01 +08:00
|
|
|
writer, err = storage.NewBinlogSerializeWriter(schema, partID, segID, fieldWriters, 100)
|
2024-05-23 09:53:40 +08:00
|
|
|
return
|
|
|
|
}
|