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d294fdd060
milvus/internal/datanode/writebuffer/bf_write_buffer_test.go
yihao.dai 6c1d815894
enhance: Remove the unused compaction logic from shard (#33932) 
1. Remove the `compactTo` field in `SegmentInfo`.
2. Remove the target segment not match and its retry logic in
`SyncManager`.

issue: https://github.com/milvus-io/milvus/issues/32809

---------

Signed-off-by: bigsheeper <yihao.dai@zilliz.com>
2024-06-23 21:12:01 +08:00

435 lines
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package writebuffer
import (
"fmt"
"math/rand"
"testing"
"time"
"github.com/samber/lo"
"github.com/stretchr/testify/mock"
"github.com/stretchr/testify/suite"
"github.com/milvus-io/milvus-proto/go-api/v2/commonpb"
"github.com/milvus-io/milvus-proto/go-api/v2/msgpb"
"github.com/milvus-io/milvus-proto/go-api/v2/schemapb"
milvus_storage "github.com/milvus-io/milvus-storage/go/storage"
"github.com/milvus-io/milvus-storage/go/storage/options"
"github.com/milvus-io/milvus-storage/go/storage/schema"
"github.com/milvus-io/milvus/internal/datanode/broker"
"github.com/milvus-io/milvus/internal/datanode/metacache"
"github.com/milvus-io/milvus/internal/datanode/syncmgr"
"github.com/milvus-io/milvus/internal/proto/datapb"
"github.com/milvus-io/milvus/internal/querycoordv2/params"
"github.com/milvus-io/milvus/internal/storage"
"github.com/milvus-io/milvus/internal/util/typeutil"
"github.com/milvus-io/milvus/pkg/common"
"github.com/milvus-io/milvus/pkg/metrics"
"github.com/milvus-io/milvus/pkg/mq/msgstream"
"github.com/milvus-io/milvus/pkg/util/paramtable"
"github.com/milvus-io/milvus/pkg/util/testutils"
"github.com/milvus-io/milvus/pkg/util/tsoutil"
)
type BFWriteBufferSuite struct {
testutils.PromMetricsSuite
collID int64
channelName string
collInt64Schema *schemapb.CollectionSchema
collVarcharSchema *schemapb.CollectionSchema
syncMgr *syncmgr.MockSyncManager
metacacheInt64 *metacache.MockMetaCache
metacacheVarchar *metacache.MockMetaCache
broker *broker.MockBroker
storageV2Cache *metacache.StorageV2Cache
}
func (s *BFWriteBufferSuite) SetupSuite() {
paramtable.Get().Init(paramtable.NewBaseTable())
s.collID = 100
s.collInt64Schema = &schemapb.CollectionSchema{
Name: "test_collection",
Fields: []*schemapb.FieldSchema{
{
FieldID: common.RowIDField, Name: common.RowIDFieldName, DataType: schemapb.DataType_Int64,
},
{
FieldID: common.TimeStampField, Name: common.TimeStampFieldName, DataType: schemapb.DataType_Int64,
},
{
FieldID: 100, Name: "pk", DataType: schemapb.DataType_Int64, IsPrimaryKey: true,
},
{
FieldID: 101, Name: "vector", DataType: schemapb.DataType_FloatVector,
TypeParams: []*commonpb.KeyValuePair{
{Key: common.DimKey, Value: "128"},
},
},
},
}
s.collVarcharSchema = &schemapb.CollectionSchema{
Name: "test_collection",
Fields: []*schemapb.FieldSchema{
{
FieldID: common.RowIDField, Name: common.RowIDFieldName, DataType: schemapb.DataType_Int64,
},
{
FieldID: common.TimeStampField, Name: common.TimeStampFieldName, DataType: schemapb.DataType_Int64,
},
{
FieldID: 100, Name: "pk", DataType: schemapb.DataType_VarChar, IsPrimaryKey: true, TypeParams: []*commonpb.KeyValuePair{
{Key: common.MaxLengthKey, Value: "100"},
},
},
{
FieldID: 101, Name: "vector", DataType: schemapb.DataType_FloatVector,
TypeParams: []*commonpb.KeyValuePair{
{Key: common.DimKey, Value: "128"},
},
},
},
}
storageCache, err := metacache.NewStorageV2Cache(s.collInt64Schema)
s.Require().NoError(err)
s.storageV2Cache = storageCache
}
func (s *BFWriteBufferSuite) composeInsertMsg(segmentID int64, rowCount int, dim int, pkType schemapb.DataType) ([]int64, *msgstream.InsertMsg) {
tss := lo.RepeatBy(rowCount, func(idx int) int64 { return int64(tsoutil.ComposeTSByTime(time.Now(), int64(idx))) })
vectors := lo.RepeatBy(rowCount, func(_ int) []float32 {
return lo.RepeatBy(dim, func(_ int) float32 { return rand.Float32() })
})
var pkField *schemapb.FieldData
switch pkType {
case schemapb.DataType_Int64:
pkField = &schemapb.FieldData{
FieldId: common.StartOfUserFieldID, FieldName: "pk", Type: schemapb.DataType_Int64,
Field: &schemapb.FieldData_Scalars{
Scalars: &schemapb.ScalarField{
Data: &schemapb.ScalarField_LongData{
LongData: &schemapb.LongArray{
Data: tss,
},
},
},
},
}
case schemapb.DataType_VarChar:
pkField = &schemapb.FieldData{
FieldId: common.StartOfUserFieldID, FieldName: "pk", Type: schemapb.DataType_VarChar,
Field: &schemapb.FieldData_Scalars{
Scalars: &schemapb.ScalarField{
Data: &schemapb.ScalarField_StringData{
StringData: &schemapb.StringArray{
Data: lo.Map(tss, func(v int64, _ int) string { return fmt.Sprintf("%v", v) }),
},
},
},
},
}
}
flatten := lo.Flatten(vectors)
return tss, &msgstream.InsertMsg{
InsertRequest: msgpb.InsertRequest{
SegmentID: segmentID,
Version: msgpb.InsertDataVersion_ColumnBased,
RowIDs: tss,
Timestamps: lo.Map(tss, func(id int64, _ int) uint64 { return uint64(id) }),
FieldsData: []*schemapb.FieldData{
{
FieldId: common.RowIDField, FieldName: common.RowIDFieldName, Type: schemapb.DataType_Int64,
Field: &schemapb.FieldData_Scalars{
Scalars: &schemapb.ScalarField{
Data: &schemapb.ScalarField_LongData{
LongData: &schemapb.LongArray{
Data: tss,
},
},
},
},
},
{
FieldId: common.TimeStampField, FieldName: common.TimeStampFieldName, Type: schemapb.DataType_Int64,
Field: &schemapb.FieldData_Scalars{
Scalars: &schemapb.ScalarField{
Data: &schemapb.ScalarField_LongData{
LongData: &schemapb.LongArray{
Data: tss,
},
},
},
},
},
pkField,
{
FieldId: common.StartOfUserFieldID + 1, FieldName: "vector", Type: schemapb.DataType_FloatVector,
Field: &schemapb.FieldData_Vectors{
Vectors: &schemapb.VectorField{
Dim: int64(dim),
Data: &schemapb.VectorField_FloatVector{
FloatVector: &schemapb.FloatArray{
Data: flatten,
},
},
},
},
},
},
},
}
}
func (s *BFWriteBufferSuite) composeDeleteMsg(pks []storage.PrimaryKey) *msgstream.DeleteMsg {
delMsg := &msgstream.DeleteMsg{
DeleteRequest: msgpb.DeleteRequest{
PrimaryKeys: storage.ParsePrimaryKeys2IDs(pks),
Timestamps: lo.RepeatBy(len(pks), func(idx int) uint64 { return tsoutil.ComposeTSByTime(time.Now(), int64(idx+1)) }),
},
}
return delMsg
}
func (s *BFWriteBufferSuite) SetupTest() {
s.syncMgr = syncmgr.NewMockSyncManager(s.T())
s.metacacheInt64 = metacache.NewMockMetaCache(s.T())
s.metacacheInt64.EXPECT().Schema().Return(s.collInt64Schema).Maybe()
s.metacacheInt64.EXPECT().Collection().Return(s.collID).Maybe()
s.metacacheVarchar = metacache.NewMockMetaCache(s.T())
s.metacacheVarchar.EXPECT().Schema().Return(s.collVarcharSchema).Maybe()
s.metacacheVarchar.EXPECT().Collection().Return(s.collID).Maybe()
s.broker = broker.NewMockBroker(s.T())
var err error
s.storageV2Cache, err = metacache.NewStorageV2Cache(s.collInt64Schema)
s.Require().NoError(err)
}
func (s *BFWriteBufferSuite) TestBufferData() {
s.Run("normal_run_int64", func() {
storageCache, err := metacache.NewStorageV2Cache(s.collInt64Schema)
s.Require().NoError(err)
wb, err := NewBFWriteBuffer(s.channelName, s.metacacheInt64, storageCache, s.syncMgr, &writeBufferOption{})
s.NoError(err)
seg := metacache.NewSegmentInfo(&datapb.SegmentInfo{ID: 1000}, metacache.NewBloomFilterSet())
s.metacacheInt64.EXPECT().GetSegmentsBy(mock.Anything, mock.Anything).Return([]*metacache.SegmentInfo{seg})
s.metacacheInt64.EXPECT().GetSegmentByID(int64(1000)).Return(nil, false)
s.metacacheInt64.EXPECT().AddSegment(mock.Anything, mock.Anything, mock.Anything).Return()
s.metacacheInt64.EXPECT().UpdateSegments(mock.Anything, mock.Anything).Return()
pks, msg := s.composeInsertMsg(1000, 10, 128, schemapb.DataType_Int64)
delMsg := s.composeDeleteMsg(lo.Map(pks, func(id int64, _ int) storage.PrimaryKey { return storage.NewInt64PrimaryKey(id) }))
metrics.DataNodeFlowGraphBufferDataSize.Reset()
err = wb.BufferData([]*msgstream.InsertMsg{msg}, []*msgstream.DeleteMsg{delMsg}, &msgpb.MsgPosition{Timestamp: 100}, &msgpb.MsgPosition{Timestamp: 200})
s.NoError(err)
value, err := metrics.DataNodeFlowGraphBufferDataSize.GetMetricWithLabelValues(fmt.Sprint(paramtable.GetNodeID()), fmt.Sprint(s.metacacheInt64.Collection()))
s.NoError(err)
s.MetricsEqual(value, 5604)
delMsg = s.composeDeleteMsg(lo.Map(pks, func(id int64, _ int) storage.PrimaryKey { return storage.NewInt64PrimaryKey(id) }))
err = wb.BufferData([]*msgstream.InsertMsg{}, []*msgstream.DeleteMsg{delMsg}, &msgpb.MsgPosition{Timestamp: 100}, &msgpb.MsgPosition{Timestamp: 200})
s.NoError(err)
s.MetricsEqual(value, 5844)
})
s.Run("normal_run_varchar", func() {
storageCache, err := metacache.NewStorageV2Cache(s.collVarcharSchema)
s.Require().NoError(err)
wb, err := NewBFWriteBuffer(s.channelName, s.metacacheVarchar, storageCache, s.syncMgr, &writeBufferOption{})
s.NoError(err)
seg := metacache.NewSegmentInfo(&datapb.SegmentInfo{ID: 1000}, metacache.NewBloomFilterSet())
s.metacacheVarchar.EXPECT().GetSegmentsBy(mock.Anything, mock.Anything).Return([]*metacache.SegmentInfo{seg})
s.metacacheVarchar.EXPECT().GetSegmentByID(int64(1000)).Return(nil, false)
s.metacacheVarchar.EXPECT().AddSegment(mock.Anything, mock.Anything, mock.Anything).Return()
s.metacacheVarchar.EXPECT().UpdateSegments(mock.Anything, mock.Anything).Return()
pks, msg := s.composeInsertMsg(1000, 10, 128, schemapb.DataType_VarChar)
delMsg := s.composeDeleteMsg(lo.Map(pks, func(id int64, _ int) storage.PrimaryKey { return storage.NewVarCharPrimaryKey(fmt.Sprintf("%v", id)) }))
metrics.DataNodeFlowGraphBufferDataSize.Reset()
err = wb.BufferData([]*msgstream.InsertMsg{msg}, []*msgstream.DeleteMsg{delMsg}, &msgpb.MsgPosition{Timestamp: 100}, &msgpb.MsgPosition{Timestamp: 200})
s.NoError(err)
value, err := metrics.DataNodeFlowGraphBufferDataSize.GetMetricWithLabelValues(fmt.Sprint(paramtable.GetNodeID()), fmt.Sprint(s.metacacheInt64.Collection()))
s.NoError(err)
s.MetricsEqual(value, 7224)
})
s.Run("int_pk_type_not_match", func() {
storageCache, err := metacache.NewStorageV2Cache(s.collInt64Schema)
s.Require().NoError(err)
wb, err := NewBFWriteBuffer(s.channelName, s.metacacheInt64, storageCache, s.syncMgr, &writeBufferOption{})
s.NoError(err)
seg := metacache.NewSegmentInfo(&datapb.SegmentInfo{ID: 1000}, metacache.NewBloomFilterSet())
s.metacacheInt64.EXPECT().GetSegmentsBy(mock.Anything, mock.Anything).Return([]*metacache.SegmentInfo{seg})
s.metacacheInt64.EXPECT().GetSegmentByID(int64(1000)).Return(nil, false)
s.metacacheInt64.EXPECT().AddSegment(mock.Anything, mock.Anything, mock.Anything).Return()
s.metacacheInt64.EXPECT().UpdateSegments(mock.Anything, mock.Anything).Return()
pks, msg := s.composeInsertMsg(1000, 10, 128, schemapb.DataType_VarChar)
delMsg := s.composeDeleteMsg(lo.Map(pks, func(id int64, _ int) storage.PrimaryKey { return storage.NewInt64PrimaryKey(id) }))
metrics.DataNodeFlowGraphBufferDataSize.Reset()
err = wb.BufferData([]*msgstream.InsertMsg{msg}, []*msgstream.DeleteMsg{delMsg}, &msgpb.MsgPosition{Timestamp: 100}, &msgpb.MsgPosition{Timestamp: 200})
s.Error(err)
})
s.Run("varchar_pk_not_match", func() {
storageCache, err := metacache.NewStorageV2Cache(s.collVarcharSchema)
s.Require().NoError(err)
wb, err := NewBFWriteBuffer(s.channelName, s.metacacheVarchar, storageCache, s.syncMgr, &writeBufferOption{})
s.NoError(err)
seg := metacache.NewSegmentInfo(&datapb.SegmentInfo{ID: 1000}, metacache.NewBloomFilterSet())
s.metacacheVarchar.EXPECT().GetSegmentsBy(mock.Anything, mock.Anything).Return([]*metacache.SegmentInfo{seg})
s.metacacheVarchar.EXPECT().GetSegmentByID(int64(1000)).Return(nil, false)
s.metacacheVarchar.EXPECT().AddSegment(mock.Anything, mock.Anything, mock.Anything).Return()
s.metacacheVarchar.EXPECT().UpdateSegments(mock.Anything, mock.Anything).Return()
pks, msg := s.composeInsertMsg(1000, 10, 128, schemapb.DataType_Int64)
delMsg := s.composeDeleteMsg(lo.Map(pks, func(id int64, _ int) storage.PrimaryKey { return storage.NewInt64PrimaryKey(id) }))
metrics.DataNodeFlowGraphBufferDataSize.Reset()
err = wb.BufferData([]*msgstream.InsertMsg{msg}, []*msgstream.DeleteMsg{delMsg}, &msgpb.MsgPosition{Timestamp: 100}, &msgpb.MsgPosition{Timestamp: 200})
s.Error(err)
})
}
func (s *BFWriteBufferSuite) TestAutoSync() {
paramtable.Get().Save(paramtable.Get().DataNodeCfg.FlushInsertBufferSize.Key, "1")
s.Run("normal_auto_sync", func() {
wb, err := NewBFWriteBuffer(s.channelName, s.metacacheInt64, nil, s.syncMgr, &writeBufferOption{
syncPolicies: []SyncPolicy{
GetFullBufferPolicy(),
GetSyncStaleBufferPolicy(paramtable.Get().DataNodeCfg.SyncPeriod.GetAsDuration(time.Second)),
GetSealedSegmentsPolicy(s.metacacheInt64),
},
})
s.NoError(err)
seg := metacache.NewSegmentInfo(&datapb.SegmentInfo{ID: 1000}, metacache.NewBloomFilterSet())
seg1 := metacache.NewSegmentInfo(&datapb.SegmentInfo{ID: 1002}, metacache.NewBloomFilterSet())
s.metacacheInt64.EXPECT().GetSegmentsBy(mock.Anything, mock.Anything).Return([]*metacache.SegmentInfo{seg})
s.metacacheInt64.EXPECT().GetSegmentByID(int64(1000)).Return(nil, false).Once()
s.metacacheInt64.EXPECT().GetSegmentByID(int64(1000)).Return(seg, true).Once()
s.metacacheInt64.EXPECT().GetSegmentByID(int64(1002)).Return(seg1, true)
s.metacacheInt64.EXPECT().GetSegmentIDsBy(mock.Anything).Return([]int64{1002})
s.metacacheInt64.EXPECT().GetSegmentIDsBy(mock.Anything, mock.Anything, mock.Anything).Return([]int64{})
s.metacacheInt64.EXPECT().AddSegment(mock.Anything, mock.Anything, mock.Anything).Return()
s.metacacheInt64.EXPECT().UpdateSegments(mock.Anything, mock.Anything).Return()
s.metacacheInt64.EXPECT().UpdateSegments(mock.Anything, mock.Anything, mock.Anything).Return()
s.syncMgr.EXPECT().SyncData(mock.Anything, mock.Anything, mock.Anything).Return(nil)
pks, msg := s.composeInsertMsg(1000, 10, 128, schemapb.DataType_Int64)
delMsg := s.composeDeleteMsg(lo.Map(pks, func(id int64, _ int) storage.PrimaryKey { return storage.NewInt64PrimaryKey(id) }))
metrics.DataNodeFlowGraphBufferDataSize.Reset()
err = wb.BufferData([]*msgstream.InsertMsg{msg}, []*msgstream.DeleteMsg{delMsg}, &msgpb.MsgPosition{Timestamp: 100}, &msgpb.MsgPosition{Timestamp: 200})
s.NoError(err)
value, err := metrics.DataNodeFlowGraphBufferDataSize.GetMetricWithLabelValues(fmt.Sprint(paramtable.GetNodeID()), fmt.Sprint(s.metacacheInt64.Collection()))
s.NoError(err)
s.MetricsEqual(value, 0)
})
}
func (s *BFWriteBufferSuite) TestBufferDataWithStorageV2() {
params.Params.CommonCfg.EnableStorageV2.SwapTempValue("true")
defer paramtable.Get().CommonCfg.EnableStorageV2.SwapTempValue("false")
params.Params.CommonCfg.StorageScheme.SwapTempValue("file")
tmpDir := s.T().TempDir()
arrowSchema, err := typeutil.ConvertToArrowSchema(s.collInt64Schema.Fields)
s.Require().NoError(err)
space, err := milvus_storage.Open(fmt.Sprintf("file:///%s", tmpDir), options.NewSpaceOptionBuilder().
SetSchema(schema.NewSchema(arrowSchema, &schema.SchemaOptions{
PrimaryColumn: "pk", VectorColumn: "vector", VersionColumn: common.TimeStampFieldName,
})).Build())
s.Require().NoError(err)
s.storageV2Cache.SetSpace(1000, space)
wb, err := NewBFWriteBuffer(s.channelName, s.metacacheInt64, s.storageV2Cache, s.syncMgr, &writeBufferOption{})
s.NoError(err)
seg := metacache.NewSegmentInfo(&datapb.SegmentInfo{ID: 1000}, metacache.NewBloomFilterSet())
s.metacacheInt64.EXPECT().GetSegmentsBy(mock.Anything, mock.Anything).Return([]*metacache.SegmentInfo{seg})
s.metacacheInt64.EXPECT().GetSegmentByID(int64(1000)).Return(nil, false)
s.metacacheInt64.EXPECT().AddSegment(mock.Anything, mock.Anything, mock.Anything).Return()
s.metacacheInt64.EXPECT().UpdateSegments(mock.Anything, mock.Anything).Return()
pks, msg := s.composeInsertMsg(1000, 10, 128, schemapb.DataType_Int64)
delMsg := s.composeDeleteMsg(lo.Map(pks, func(id int64, _ int) storage.PrimaryKey { return storage.NewInt64PrimaryKey(id) }))
err = wb.BufferData([]*msgstream.InsertMsg{msg}, []*msgstream.DeleteMsg{delMsg}, &msgpb.MsgPosition{Timestamp: 100}, &msgpb.MsgPosition{Timestamp: 200})
s.NoError(err)
}
func (s *BFWriteBufferSuite) TestAutoSyncWithStorageV2() {
params.Params.CommonCfg.EnableStorageV2.SwapTempValue("true")
defer paramtable.Get().CommonCfg.EnableStorageV2.SwapTempValue("false")
paramtable.Get().Save(paramtable.Get().DataNodeCfg.FlushInsertBufferSize.Key, "1")
tmpDir := s.T().TempDir()
arrowSchema, err := typeutil.ConvertToArrowSchema(s.collInt64Schema.Fields)
s.Require().NoError(err)
space, err := milvus_storage.Open(fmt.Sprintf("file:///%s", tmpDir), options.NewSpaceOptionBuilder().
SetSchema(schema.NewSchema(arrowSchema, &schema.SchemaOptions{
PrimaryColumn: "pk", VectorColumn: "vector", VersionColumn: common.TimeStampFieldName,
})).Build())
s.Require().NoError(err)
s.storageV2Cache.SetSpace(1002, space)
s.Run("normal_auto_sync", func() {
wb, err := NewBFWriteBuffer(s.channelName, s.metacacheInt64, s.storageV2Cache, s.syncMgr, &writeBufferOption{
syncPolicies: []SyncPolicy{
GetFullBufferPolicy(),
GetSyncStaleBufferPolicy(paramtable.Get().DataNodeCfg.SyncPeriod.GetAsDuration(time.Second)),
GetSealedSegmentsPolicy(s.metacacheInt64),
},
})
s.NoError(err)
seg := metacache.NewSegmentInfo(&datapb.SegmentInfo{ID: 1000}, metacache.NewBloomFilterSet())
seg1 := metacache.NewSegmentInfo(&datapb.SegmentInfo{ID: 1002}, metacache.NewBloomFilterSet())
segCompacted := metacache.NewSegmentInfo(&datapb.SegmentInfo{ID: 1000}, metacache.NewBloomFilterSet())
s.metacacheInt64.EXPECT().GetSegmentsBy(mock.Anything, mock.Anything).Return([]*metacache.SegmentInfo{seg, segCompacted})
s.metacacheInt64.EXPECT().GetSegmentByID(int64(1000)).Return(nil, false).Once()
s.metacacheInt64.EXPECT().GetSegmentByID(int64(1000)).Return(seg, true).Once()
s.metacacheInt64.EXPECT().GetSegmentByID(int64(1002)).Return(seg1, true)
s.metacacheInt64.EXPECT().GetSegmentIDsBy(mock.Anything).Return([]int64{1002})
s.metacacheInt64.EXPECT().AddSegment(mock.Anything, mock.Anything, mock.Anything).Return()
s.metacacheInt64.EXPECT().UpdateSegments(mock.Anything, mock.Anything).Return()
s.metacacheInt64.EXPECT().UpdateSegments(mock.Anything, mock.Anything, mock.Anything).Return()
s.syncMgr.EXPECT().SyncData(mock.Anything, mock.Anything, mock.Anything).Return(nil)
pks, msg := s.composeInsertMsg(1000, 10, 128, schemapb.DataType_Int64)
delMsg := s.composeDeleteMsg(lo.Map(pks, func(id int64, _ int) storage.PrimaryKey { return storage.NewInt64PrimaryKey(id) }))
metrics.DataNodeFlowGraphBufferDataSize.Reset()
err = wb.BufferData([]*msgstream.InsertMsg{msg}, []*msgstream.DeleteMsg{delMsg}, &msgpb.MsgPosition{Timestamp: 100}, &msgpb.MsgPosition{Timestamp: 200})
s.NoError(err)
value, err := metrics.DataNodeFlowGraphBufferDataSize.GetMetricWithLabelValues(fmt.Sprint(paramtable.GetNodeID()), fmt.Sprint(s.metacacheInt64.Collection()))
s.NoError(err)
s.MetricsEqual(value, 0)
})
}
func (s *BFWriteBufferSuite) TestCreateFailure() {
metacache := metacache.NewMockMetaCache(s.T())
metacache.EXPECT().Collection().Return(s.collID)
metacache.EXPECT().Schema().Return(&schemapb.CollectionSchema{})
_, err := NewBFWriteBuffer(s.channelName, metacache, s.storageV2Cache, s.syncMgr, &writeBufferOption{})
s.Error(err)
}
func TestBFWriteBuffer(t *testing.T) {
suite.Run(t, new(BFWriteBufferSuite))
}
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