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https://gitee.com/milvus-io/milvus.git
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2926a78968
* rename package name from proxynode to proxy Signed-off-by: yudong.cai <yudong.cai@zilliz.com> * move distributed/proxynode to distributed/proxy Signed-off-by: yudong.cai <yudong.cai@zilliz.com> * move internal/proxynode to internal/proxy Signed-off-by: yudong.cai <yudong.cai@zilliz.com> * rename proxynode to proxy Signed-off-by: yudong.cai <yudong.cai@zilliz.com>
170 lines
5.2 KiB
Go
170 lines
5.2 KiB
Go
// Copyright (C) 2019-2020 Zilliz. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "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 distributed under the License
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// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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// or implied. See the License for the specific language governing permissions and limitations under the License.
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package proxy
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import (
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"context"
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"errors"
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"fmt"
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"sort"
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"sync"
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"github.com/milvus-io/milvus/internal/util/funcutil"
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"github.com/milvus-io/milvus/internal/log"
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"github.com/milvus-io/milvus/internal/msgstream"
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"go.uber.org/zap"
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)
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type insertChannelsMap struct {
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collectionID2InsertChannels map[UniqueID]int // the value of map is the location of insertChannels & insertMsgStreams
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insertChannels [][]string // it's a little confusing to use []string as the key of map
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insertMsgStreams []msgstream.MsgStream // maybe there's a better way to implement Set, just agilely now
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droppedBitMap []int // 0 -> normal, 1 -> dropped
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usageHistogram []int // message stream can be closed only when the use count is zero
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// TODO: use fine grained lock
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mtx sync.RWMutex
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nodeInstance *Proxy
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msFactory msgstream.Factory
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}
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func (m *insertChannelsMap) CreateInsertMsgStream(collID UniqueID, channels []string) error {
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m.mtx.Lock()
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defer m.mtx.Unlock()
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_, ok := m.collectionID2InsertChannels[collID]
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if ok {
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return errors.New("impossible and forbidden to create message stream twice")
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}
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sort.Slice(channels, func(i, j int) bool {
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return channels[i] <= channels[j]
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})
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for loc, existedChannels := range m.insertChannels {
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if m.droppedBitMap[loc] == 0 && funcutil.SortedSliceEqual(existedChannels, channels) {
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m.collectionID2InsertChannels[collID] = loc
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m.usageHistogram[loc]++
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return nil
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}
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}
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m.insertChannels = append(m.insertChannels, channels)
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m.collectionID2InsertChannels[collID] = len(m.insertChannels) - 1
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stream, _ := m.msFactory.NewMsgStream(context.Background())
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stream.AsProducer(channels)
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log.Debug("proxy", zap.Strings("proxy AsProducer: ", channels))
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stream.SetRepackFunc(insertRepackFunc)
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stream.Start()
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m.insertMsgStreams = append(m.insertMsgStreams, stream)
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m.droppedBitMap = append(m.droppedBitMap, 0)
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m.usageHistogram = append(m.usageHistogram, 1)
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return nil
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}
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func (m *insertChannelsMap) CloseInsertMsgStream(collID UniqueID) error {
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m.mtx.Lock()
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defer m.mtx.Unlock()
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loc, ok := m.collectionID2InsertChannels[collID]
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if !ok {
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return fmt.Errorf("cannot find collection with id %d", collID)
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}
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if m.droppedBitMap[loc] != 0 {
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return errors.New("insert message stream already closed")
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}
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if m.usageHistogram[loc] <= 0 {
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return errors.New("insert message stream already closed")
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}
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m.usageHistogram[loc]--
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if m.usageHistogram[loc] <= 0 {
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m.insertMsgStreams[loc].Close()
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m.droppedBitMap[loc] = 1
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log.Warn("close insert message stream ...")
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}
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delete(m.collectionID2InsertChannels, collID)
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return nil
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}
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func (m *insertChannelsMap) GetInsertChannels(collID UniqueID) ([]string, error) {
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m.mtx.RLock()
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defer m.mtx.RUnlock()
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loc, ok := m.collectionID2InsertChannels[collID]
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if !ok {
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return nil, fmt.Errorf("cannot find collection with id: %d", collID)
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}
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if m.droppedBitMap[loc] != 0 {
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return nil, errors.New("insert message stream already closed")
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}
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ret := append([]string(nil), m.insertChannels[loc]...)
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return ret, nil
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}
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func (m *insertChannelsMap) GetInsertMsgStream(collID UniqueID) (msgstream.MsgStream, error) {
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m.mtx.RLock()
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defer m.mtx.RUnlock()
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loc, ok := m.collectionID2InsertChannels[collID]
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if !ok {
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return nil, fmt.Errorf("cannot find collection with id: %d", collID)
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}
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if m.droppedBitMap[loc] != 0 {
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return nil, errors.New("insert message stream already closed")
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}
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return m.insertMsgStreams[loc], nil
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}
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func (m *insertChannelsMap) CloseAllMsgStream() {
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m.mtx.Lock()
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defer m.mtx.Unlock()
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for loc, stream := range m.insertMsgStreams {
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if m.droppedBitMap[loc] == 0 && m.usageHistogram[loc] >= 1 {
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stream.Close()
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}
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}
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m.collectionID2InsertChannels = make(map[UniqueID]int)
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m.insertChannels = make([][]string, 0)
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m.insertMsgStreams = make([]msgstream.MsgStream, 0)
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m.droppedBitMap = make([]int, 0)
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m.usageHistogram = make([]int, 0)
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}
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func newInsertChannelsMap(node *Proxy) *insertChannelsMap {
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return &insertChannelsMap{
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collectionID2InsertChannels: make(map[UniqueID]int),
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insertChannels: make([][]string, 0),
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insertMsgStreams: make([]msgstream.MsgStream, 0),
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droppedBitMap: make([]int, 0),
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usageHistogram: make([]int, 0),
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nodeInstance: node,
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msFactory: node.msFactory,
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}
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}
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var globalInsertChannelsMap *insertChannelsMap
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var initGlobalInsertChannelsMapOnce sync.Once
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// change to singleton mode later? Such as GetInsertChannelsMapInstance like GetConfAdapterMgrInstance.
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func initGlobalInsertChannelsMap(node *Proxy) {
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initGlobalInsertChannelsMapOnce.Do(func() {
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globalInsertChannelsMap = newInsertChannelsMap(node)
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})
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}
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