mirror of
https://gitee.com/milvus-io/milvus.git
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134 lines
2.8 KiB
Go
134 lines
2.8 KiB
Go
package querynode
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/*
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#cgo CFLAGS: -I${SRCDIR}/../core/output/include
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#cgo LDFLAGS: -L${SRCDIR}/../core/output/lib -lmilvus_segcore -Wl,-rpath=${SRCDIR}/../core/output/lib
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#include "segcore/collection_c.h"
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#include "segcore/segment_c.h"
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*/
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import "C"
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import (
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"context"
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"fmt"
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"io"
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"github.com/opentracing/opentracing-go"
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"github.com/uber/jaeger-client-go"
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"github.com/uber/jaeger-client-go/config"
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)
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type QueryNode struct {
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queryNodeLoopCtx context.Context
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queryNodeLoopCancel context.CancelFunc
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QueryNodeID uint64
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replica collectionReplica
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// services
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dataSyncService *dataSyncService
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metaService *metaService
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searchService *searchService
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loadIndexService *loadIndexService
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statsService *statsService
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//opentracing
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tracer opentracing.Tracer
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closer io.Closer
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}
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func Init() {
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Params.Init()
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}
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func NewQueryNode(ctx context.Context, queryNodeID uint64) *QueryNode {
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ctx1, cancel := context.WithCancel(ctx)
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q := &QueryNode{
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queryNodeLoopCtx: ctx1,
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queryNodeLoopCancel: cancel,
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QueryNodeID: queryNodeID,
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dataSyncService: nil,
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metaService: nil,
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searchService: nil,
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statsService: nil,
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}
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var err error
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cfg := &config.Configuration{
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ServiceName: "query_node",
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Sampler: &config.SamplerConfig{
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Type: "const",
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Param: 1,
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},
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Reporter: &config.ReporterConfig{
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LogSpans: true,
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},
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}
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q.tracer, q.closer, err = cfg.NewTracer(config.Logger(jaeger.StdLogger))
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if err != nil {
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panic(fmt.Sprintf("ERROR: cannot init Jaeger: %v\n", err))
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}
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opentracing.SetGlobalTracer(q.tracer)
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segmentsMap := make(map[int64]*Segment)
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collections := make([]*Collection, 0)
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tSafe := newTSafe()
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q.replica = &collectionReplicaImpl{
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collections: collections,
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segments: segmentsMap,
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tSafe: tSafe,
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}
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return q
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}
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func (node *QueryNode) Start() error {
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// todo add connectMaster logic
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node.dataSyncService = newDataSyncService(node.queryNodeLoopCtx, node.replica)
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node.searchService = newSearchService(node.queryNodeLoopCtx, node.replica)
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node.metaService = newMetaService(node.queryNodeLoopCtx, node.replica)
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node.loadIndexService = newLoadIndexService(node.queryNodeLoopCtx, node.replica)
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node.statsService = newStatsService(node.queryNodeLoopCtx, node.replica, node.loadIndexService.fieldStatsChan)
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go node.dataSyncService.start()
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go node.searchService.start()
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go node.metaService.start()
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go node.loadIndexService.start()
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go node.statsService.start()
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<-node.queryNodeLoopCtx.Done()
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return nil
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}
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func (node *QueryNode) Close() {
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node.queryNodeLoopCancel()
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// free collectionReplica
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node.replica.freeAll()
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// close services
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if node.dataSyncService != nil {
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node.dataSyncService.close()
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}
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if node.searchService != nil {
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node.searchService.close()
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}
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if node.statsService != nil {
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node.statsService.close()
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}
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if node.closer != nil {
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node.closer.Close()
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}
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}
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