Make VChannelInfo read compatible with 2.0.2 (milvus-io#17995)

Signed-off-by: wayblink <anyang.wang@zilliz.com>

internal/datacoord/channel_checker.go

@@ -147,6 +147,7 @@ func parseWatchInfo(key string, data []byte) (*datapb.ChannelWatchInfo, error) {
 	if watchInfo.Vchan == nil {
 		return nil, fmt.Errorf("invalid event: ChannelWatchInfo with nil VChannelInfo, key: %s", key)
 	}
+	reviseVChannelInfo(watchInfo.GetVchan())
 
 	return &watchInfo, nil
 }

internal/datacoord/channel_checker_test.go

@@ -195,6 +195,33 @@ func TestChannelStateTimer_parses(t *testing.T) {
 		}
 	})
 
+	t.Run("test parseWatchInfo compatibility", func(t *testing.T) {
+		oldWatchInfo := datapb.ChannelWatchInfo{
+			Vchan: &datapb.VchannelInfo{
+				CollectionID:        1,
+				ChannelName:         "delta-channel1",
+				UnflushedSegments:   []*datapb.SegmentInfo{{ID: 1}},
+				FlushedSegments:     []*datapb.SegmentInfo{{ID: 2}},
+				DroppedSegments:     []*datapb.SegmentInfo{{ID: 3}},
+				UnflushedSegmentIds: []int64{1},
+			},
+			StartTs:   time.Now().Unix(),
+			State:     datapb.ChannelWatchState_ToWatch,
+			TimeoutTs: time.Now().Add(20 * time.Millisecond).UnixNano(),
+		}
+
+		oldData, err := proto.Marshal(&oldWatchInfo)
+		assert.NoError(t, err)
+		newWatchInfo, err := parseWatchInfo("key", oldData)
+		assert.NoError(t, err)
+		assert.Equal(t, []*datapb.SegmentInfo{}, newWatchInfo.GetVchan().GetUnflushedSegments())
+		assert.Equal(t, []*datapb.SegmentInfo{}, newWatchInfo.GetVchan().GetFlushedSegments())
+		assert.Equal(t, []*datapb.SegmentInfo{}, newWatchInfo.GetVchan().GetDroppedSegments())
+		assert.NotEmpty(t, newWatchInfo.GetVchan().GetUnflushedSegmentIds())
+		assert.NotEmpty(t, newWatchInfo.GetVchan().GetFlushedSegmentIds())
+		assert.NotEmpty(t, newWatchInfo.GetVchan().GetDroppedSegmentIds())
+	})
+
 	t.Run("test getAckType", func(t *testing.T) {
 		tests := []struct {
 			inState    datapb.ChannelWatchState

internal/datacoord/channel_store.go

@@ -147,6 +147,7 @@ func (c *ChannelStore) Reload() error {
 		if err := proto.Unmarshal([]byte(v), cw); err != nil {
 			return err
 		}
+		reviseVChannelInfo(cw.GetVchan())
 
 		c.Add(nodeID)
 		channel := &channel{

internal/datacoord/meta_util.go

@@ -0,0 +1,63 @@
+// Licensed to the LF AI & Data foundation under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package datacoord
+
+import "github.com/milvus-io/milvus/internal/proto/datapb"
+
+// reviseVChannelInfo will revise the datapb.VchannelInfo for upgrade compatibility from 2.0.2
+func reviseVChannelInfo(vChannel *datapb.VchannelInfo) {
+	removeDuplicateSegmentIDFn := func(ids []int64) []int64 {
+		result := make([]int64, 0, len(ids))
+		existDict := make(map[int64]bool)
+		for _, id := range ids {
+			if _, ok := existDict[id]; !ok {
+				existDict[id] = true
+				result = append(result, id)
+			}
+		}
+		return result
+	}
+
+	if vChannel == nil {
+		return
+	}
+	// if the segment infos is not nil(generated by 2.0.2), append the corresponding IDs to segmentIDs
+	// and remove the segment infos, remove deplicate ids in case there are some mixed situations
+	if vChannel.FlushedSegments != nil && len(vChannel.FlushedSegments) > 0 {
+		for _, segment := range vChannel.FlushedSegments {
+			vChannel.FlushedSegmentIds = append(vChannel.GetFlushedSegmentIds(), segment.GetID())
+		}
+		vChannel.FlushedSegments = []*datapb.SegmentInfo{}
+	}
+	vChannel.FlushedSegmentIds = removeDuplicateSegmentIDFn(vChannel.GetFlushedSegmentIds())
+
+	if vChannel.UnflushedSegments != nil && len(vChannel.UnflushedSegments) > 0 {
+		for _, segment := range vChannel.UnflushedSegments {
+			vChannel.UnflushedSegmentIds = append(vChannel.GetUnflushedSegmentIds(), segment.GetID())
+		}
+		vChannel.UnflushedSegments = []*datapb.SegmentInfo{}
+	}
+	vChannel.UnflushedSegmentIds = removeDuplicateSegmentIDFn(vChannel.GetUnflushedSegmentIds())
+
+	if vChannel.DroppedSegments != nil && len(vChannel.DroppedSegments) > 0 {
+		for _, segment := range vChannel.DroppedSegments {
+			vChannel.DroppedSegmentIds = append(vChannel.GetDroppedSegmentIds(), segment.GetID())
+		}
+		vChannel.DroppedSegments = []*datapb.SegmentInfo{}
+	}
+	vChannel.DroppedSegmentIds = removeDuplicateSegmentIDFn(vChannel.GetDroppedSegmentIds())
+}

internal/datacoord/policy.go

@@ -450,6 +450,7 @@ func BgCheckWithMaxWatchDuration(kv kv.TxnKV) ChannelBGChecker {
 				if err := proto.Unmarshal([]byte(v), watchInfo); err != nil {
 					return nil, err
 				}
+				reviseVChannelInfo(watchInfo.GetVchan())
 				// if a channel is not watched after maxWatchDuration,
 				// then we reallocate it to another node
 				if watchInfo.State == datapb.ChannelWatchState_Complete || watchInfo.State == datapb.ChannelWatchState_WatchSuccess {

internal/datanode/data_node.go

@@ -357,6 +357,7 @@ func parsePutEventData(data []byte) (*datapb.ChannelWatchInfo, error) {
 	if watchInfo.Vchan == nil {
 		return nil, fmt.Errorf("invalid event: ChannelWatchInfo with nil VChannelInfo")
 	}
+	reviseVChannelInfo(watchInfo.GetVchan())
 	return &watchInfo, nil
 }
 

internal/datanode/data_node_test.go

@@ -819,6 +819,33 @@ func TestWatchChannel(t *testing.T) {
 		exist := node.flowgraphManager.exist("test3")
 		assert.False(t, exist)
 	})
+
+	t.Run("handle watchinfo compatibility", func(t *testing.T) {
+		info := datapb.ChannelWatchInfo{
+			Vchan: &datapb.VchannelInfo{
+				CollectionID:        1,
+				ChannelName:         "delta-channel1",
+				UnflushedSegments:   []*datapb.SegmentInfo{{ID: 1}},
+				FlushedSegments:     []*datapb.SegmentInfo{{ID: 2}},
+				DroppedSegments:     []*datapb.SegmentInfo{{ID: 3}},
+				UnflushedSegmentIds: []int64{1},
+			},
+			State:     datapb.ChannelWatchState_Uncomplete,
+			TimeoutTs: time.Now().Add(time.Minute).UnixNano(),
+		}
+		bs, err := proto.Marshal(&info)
+		assert.NoError(t, err)
+
+		newWatchInfo, err := parsePutEventData(bs)
+		assert.NoError(t, err)
+
+		assert.Equal(t, []*datapb.SegmentInfo{}, newWatchInfo.GetVchan().GetUnflushedSegments())
+		assert.Equal(t, []*datapb.SegmentInfo{}, newWatchInfo.GetVchan().GetFlushedSegments())
+		assert.Equal(t, []*datapb.SegmentInfo{}, newWatchInfo.GetVchan().GetDroppedSegments())
+		assert.NotEmpty(t, newWatchInfo.GetVchan().GetUnflushedSegmentIds())
+		assert.NotEmpty(t, newWatchInfo.GetVchan().GetFlushedSegmentIds())
+		assert.NotEmpty(t, newWatchInfo.GetVchan().GetDroppedSegmentIds())
+	})
 }
 
 func TestDataNode_GetComponentStates(t *testing.T) {

internal/datanode/meta_util.go

@@ -0,0 +1,63 @@
+// Licensed to the LF AI & Data foundation under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package datanode
+
+import "github.com/milvus-io/milvus/internal/proto/datapb"
+
+// reviseVChannelInfo will revise the datapb.VchannelInfo for upgrade compatibility from 2.0.2
+func reviseVChannelInfo(vChannel *datapb.VchannelInfo) {
+	removeDuplicateSegmentIDFn := func(ids []int64) []int64 {
+		result := make([]int64, 0, len(ids))
+		existDict := make(map[int64]bool)
+		for _, id := range ids {
+			if _, ok := existDict[id]; !ok {
+				existDict[id] = true
+				result = append(result, id)
+			}
+		}
+		return result
+	}
+
+	if vChannel == nil {
+		return
+	}
+	// if the segment infos is not nil(generated by 2.0.2), append the corresponding IDs to segmentIDs
+	// and remove the segment infos, remove deplicate ids in case there are some mixed situations
+	if vChannel.FlushedSegments != nil && len(vChannel.FlushedSegments) > 0 {
+		for _, segment := range vChannel.FlushedSegments {
+			vChannel.FlushedSegmentIds = append(vChannel.GetFlushedSegmentIds(), segment.GetID())
+		}
+		vChannel.FlushedSegments = []*datapb.SegmentInfo{}
+	}
+	vChannel.FlushedSegmentIds = removeDuplicateSegmentIDFn(vChannel.GetFlushedSegmentIds())
+
+	if vChannel.UnflushedSegments != nil && len(vChannel.UnflushedSegments) > 0 {
+		for _, segment := range vChannel.UnflushedSegments {
+			vChannel.UnflushedSegmentIds = append(vChannel.GetUnflushedSegmentIds(), segment.GetID())
+		}
+		vChannel.UnflushedSegments = []*datapb.SegmentInfo{}
+	}
+	vChannel.UnflushedSegmentIds = removeDuplicateSegmentIDFn(vChannel.GetUnflushedSegmentIds())
+
+	if vChannel.DroppedSegments != nil && len(vChannel.DroppedSegments) > 0 {
+		for _, segment := range vChannel.DroppedSegments {
+			vChannel.DroppedSegmentIds = append(vChannel.GetDroppedSegmentIds(), segment.GetID())
+		}
+		vChannel.DroppedSegments = []*datapb.SegmentInfo{}
+	}
+	vChannel.DroppedSegmentIds = removeDuplicateSegmentIDFn(vChannel.GetDroppedSegmentIds())
+}

internal/querycoord/meta.go

@@ -203,6 +203,7 @@ func (m *MetaReplica) reloadFromKV() error {
 		if err != nil {
 			return err
 		}
+		reviseVChannelInfo(deltaChannelInfo)
 		m.deltaChannelInfos[collectionID] = append(m.deltaChannelInfos[collectionID], deltaChannelInfo)
 	}
 

internal/querycoord/meta_test.go

@@ -369,6 +369,97 @@ func TestReloadMetaFromKV(t *testing.T) {
 	assert.Equal(t, collectionInfo.CollectionID, replicas[0].CollectionID)
 }
 
+func TestVChannelInfoReadFromKVCompatible(t *testing.T) {
+	refreshParams()
+	etcdCli, err := etcd.GetEtcdClient(&Params.EtcdCfg)
+	assert.Nil(t, err)
+	defer etcdCli.Close()
+	kv := etcdkv.NewEtcdKV(etcdCli, Params.EtcdCfg.MetaRootPath)
+	id := UniqueID(rand.Int31())
+	idAllocator := func() (UniqueID, error) {
+		newID := atomic.AddInt64(&id, 1)
+		return newID, nil
+	}
+	meta := &MetaReplica{
+		idAllocator:       idAllocator,
+		collectionInfos:   map[UniqueID]*querypb.CollectionInfo{},
+		dmChannelInfos:    map[string]*querypb.DmChannelWatchInfo{},
+		deltaChannelInfos: map[UniqueID][]*datapb.VchannelInfo{},
+		segmentsInfo:      newSegmentsInfo(kv),
+		replicas:          NewReplicaInfos(),
+	}
+	meta.setKvClient(kv)
+
+	kvs := make(map[string]string)
+	collectionInfo := &querypb.CollectionInfo{
+		CollectionID: defaultCollectionID,
+	}
+	collectionBlobs, err := proto.Marshal(collectionInfo)
+	assert.Nil(t, err)
+	collectionKey := fmt.Sprintf("%s/%d", collectionMetaPrefix, defaultCollectionID)
+	kvs[collectionKey] = string(collectionBlobs)
+
+	deltaChannel1 := &datapb.VchannelInfo{
+		CollectionID: defaultCollectionID,
+		ChannelName:  "delta-channel1",
+		FlushedSegments: []*datapb.SegmentInfo{{
+			ID:           1,
+			CollectionID: defaultCollectionID,
+		}},
+		UnflushedSegments: []*datapb.SegmentInfo{{
+			ID:           2,
+			CollectionID: defaultCollectionID,
+		}},
+		DroppedSegments: []*datapb.SegmentInfo{{
+			ID:           3,
+			CollectionID: defaultCollectionID,
+		}},
+	}
+	deltaChannel2 := &datapb.VchannelInfo{
+		CollectionID: defaultCollectionID,
+		ChannelName:  "delta-channel2",
+		FlushedSegments: []*datapb.SegmentInfo{{
+			ID:           4,
+			CollectionID: defaultCollectionID,
+		}},
+		UnflushedSegments: []*datapb.SegmentInfo{{
+			ID:           5,
+			CollectionID: defaultCollectionID,
+		}},
+		DroppedSegments: []*datapb.SegmentInfo{{
+			ID:           6,
+			CollectionID: defaultCollectionID,
+		}},
+	}
+
+	infos := []*datapb.VchannelInfo{deltaChannel1, deltaChannel2}
+	for _, info := range infos {
+		infoBytes, err := proto.Marshal(info)
+		assert.Nil(t, err)
+
+		key := fmt.Sprintf("%s/%d/%s", deltaChannelMetaPrefix, defaultCollectionID, info.ChannelName)
+		kvs[key] = string(infoBytes)
+	}
+
+	err = kv.MultiSave(kvs)
+	assert.Nil(t, err)
+
+	err = meta.reloadFromKV()
+	assert.Nil(t, err)
+
+	assert.Equal(t, 1, len(meta.collectionInfos))
+	collectionInfo, err = meta.getCollectionInfoByID(collectionInfo.CollectionID)
+	assert.NoError(t, err)
+	assert.Equal(t, 1, len(collectionInfo.ReplicaIds))
+	assert.Equal(t, int32(1), collectionInfo.ReplicaNumber)
+
+	channels, err := meta.getDeltaChannelsByCollectionID(collectionInfo.CollectionID)
+	assert.NoError(t, err)
+	assert.Equal(t, 1, len(channels[0].GetFlushedSegmentIds()))
+	assert.Equal(t, 1, len(channels[0].GetUnflushedSegmentIds()))
+	assert.Equal(t, 1, len(channels[0].GetDroppedSegmentIds()))
+}
+
 func TestSaveSegments(t *testing.T) {
 	refreshParams()
 	etcdCli, err := etcd.GetEtcdClient(&Params.EtcdCfg)

internal/querycoord/task_scheduler.go

@@ -375,6 +375,7 @@ func (scheduler *TaskScheduler) unmarshalTask(taskID UniqueID, t string) (task,
 		//TODO::trigger condition may be different
 		loadReq := querypb.WatchDeltaChannelsRequest{}
 		err = proto.Unmarshal([]byte(t), &loadReq)
+		reviseWatchDeltaChannelsRequest(&loadReq)
 		if err != nil {
 			return nil, err
 		}