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exporter.go
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/
exporter.go
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/*
* Copyright (c) 2023 Yunshan Networks
*
* Licensed 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 otlp_exporter
import (
"fmt"
"strconv"
"time"
logging "github.com/op/go-logging"
"go.opentelemetry.io/collector/pdata/ptrace"
"go.opentelemetry.io/collector/pdata/ptrace/ptraceotlp"
"golang.org/x/net/context"
"google.golang.org/grpc"
"google.golang.org/grpc/metadata"
"github.com/deepflowio/deepflow/server/ingester/common"
exporters_cfg "github.com/deepflowio/deepflow/server/ingester/flow_log/exporters/config"
utag "github.com/deepflowio/deepflow/server/ingester/flow_log/exporters/universal_tag"
"github.com/deepflowio/deepflow/server/ingester/flow_log/log_data"
"github.com/deepflowio/deepflow/server/ingester/ingesterctl"
"github.com/deepflowio/deepflow/server/libs/datatype"
"github.com/deepflowio/deepflow/server/libs/debug"
"github.com/deepflowio/deepflow/server/libs/queue"
"github.com/deepflowio/deepflow/server/libs/stats"
"github.com/deepflowio/deepflow/server/libs/utils"
)
var log = logging.MustGetLogger("otlp_exporter")
const (
QUEUE_BATCH_COUNT = 1024
)
type OtlpExporter struct {
index int
Addr string
dataQueues queue.FixedMultiQueue
queueCount int
grpcExporters []ptraceotlp.GRPCClient
grpcConns []*grpc.ClientConn
universalTagsManager *utag.UniversalTagsManager
config *exporters_cfg.OtlpExporterConfig
counter *Counter
lastCounter Counter
running bool
utils.Closable
}
type Counter struct {
RecvCounter int64 `statsd:"recv-count"`
SendCounter int64 `statsd:"send-count"`
SendBatchCounter int64 `statsd:"send-batch-count"`
ExportUsedTimeNs int64 `statsd:"export-used-time-ns"`
DropCounter int64 `statsd:"drop-count"`
DropBatchCounter int64 `statsd:"drop-batch-count"`
DropNoTraceIDCounter int64 `statsd:"drop-no-traceid-count"`
}
func (e *OtlpExporter) GetCounter() interface{} {
var counter Counter
counter, *e.counter = *e.counter, Counter{}
e.lastCounter = counter
return &counter
}
type ExportItem interface {
Release()
}
func NewOtlpExporter(index int, config *exporters_cfg.ExportersCfg, universalTagsManager *utag.UniversalTagsManager) *OtlpExporter {
otlpConfig := config.OtlpExporterCfgs[index]
dataQueues := queue.NewOverwriteQueues(
fmt.Sprintf("otlp_exporter_%d", index), queue.HashKey(otlpConfig.QueueCount), otlpConfig.QueueSize,
queue.OptionFlushIndicator(time.Second),
queue.OptionRelease(func(p interface{}) { p.(ExportItem).Release() }),
common.QUEUE_STATS_MODULE_INGESTER)
exporter := &OtlpExporter{
index: index,
dataQueues: dataQueues,
queueCount: otlpConfig.QueueCount,
universalTagsManager: universalTagsManager,
grpcConns: make([]*grpc.ClientConn, otlpConfig.QueueCount),
grpcExporters: make([]ptraceotlp.GRPCClient, otlpConfig.QueueCount),
config: &otlpConfig,
counter: &Counter{},
}
debug.ServerRegisterSimple(ingesterctl.CMD_OTLP_EXPORTER, exporter)
common.RegisterCountableForIngester("exporter", exporter, stats.OptionStatTags{
"type": "otlp", "index": strconv.Itoa(index)})
log.Infof("otlp exporter %d created", index)
return exporter
}
func (e *OtlpExporter) IsExportData(l *log_data.L7FlowLog) bool {
if e.config.ExportOnlyWithTraceID != nil && *e.config.ExportOnlyWithTraceID && l.TraceId == "" {
return false
}
if (1<<uint32(l.SignalSource))&e.config.ExportDataBits == 0 {
return false
}
// always not export data from OTel
if l.SignalSource == uint16(datatype.SIGNAL_SOURCE_OTEL) {
e.counter.DropCounter++
return false
}
return true
}
func (e *OtlpExporter) Put(items ...interface{}) {
e.counter.RecvCounter++
e.dataQueues.Put(queue.HashKey(int(e.counter.RecvCounter)%e.queueCount), items...)
}
func (e *OtlpExporter) Start() {
if e.running {
log.Warningf("otlp exporter %d already running", e.index)
return
}
e.running = true
for i := 0; i < e.queueCount; i++ {
go e.queueProcess(int(i))
}
log.Infof("otlp exporter %d started %d queue", e.index, e.queueCount)
}
func (e *OtlpExporter) Close() {
e.running = false
log.Infof("otlp exporter %d stopping", e.index)
}
func (e *OtlpExporter) queueProcess(queueID int) {
var batchCount int
traces := ptrace.NewTraces()
flows := make([]interface{}, QUEUE_BATCH_COUNT)
ctx := context.Background()
if len(e.config.GrpcHeaders) > 0 {
ctx = metadata.NewOutgoingContext(ctx, metadata.New(e.config.GrpcHeaders))
}
for e.running {
n := e.dataQueues.Gets(queue.HashKey(queueID), flows)
for _, flow := range flows[:n] {
if flow == nil {
if batchCount > 0 {
if err := e.grpcExport(ctx, queueID, ptraceotlp.NewExportRequestFromTraces(traces)); err == nil {
e.counter.SendCounter += int64(batchCount)
}
batchCount = 0
traces = ptrace.NewTraces()
}
continue
}
switch t := flow.(type) {
case (*log_data.L7FlowLog):
f := flow.(*log_data.L7FlowLog)
L7FlowLogToExportResourceSpans(f, e.universalTagsManager, e.config.ExportDataTypeBits, traces.ResourceSpans().AppendEmpty())
batchCount++
if batchCount >= e.config.ExportBatchCount {
if err := e.grpcExport(ctx, queueID, ptraceotlp.NewExportRequestFromTraces(traces)); err == nil {
e.counter.SendCounter += int64(batchCount)
}
batchCount = 0
traces = ptrace.NewTraces()
}
f.Release()
default:
log.Warningf("flow type(%T) unsupport", t)
continue
}
}
}
}
func (e *OtlpExporter) grpcExport(ctx context.Context, i int, req ptraceotlp.ExportRequest) error {
defer func() {
if r := recover(); r != nil {
log.Warningf("otlp grpc export error: %s", r)
if j, err := req.MarshalJSON(); err == nil {
log.Infof("otlp request: %s", string(j))
}
}
}()
now := time.Now()
if e.grpcExporters[i] == nil {
if err := e.newGrpcExporter(i); err != nil {
if e.counter.DropCounter == 0 {
log.Warningf("new grpc exporter failed. err: %s", err)
}
e.counter.DropCounter++
return err
}
}
_, err := e.grpcExporters[i].Export(ctx, req)
if err != nil {
if e.counter.DropCounter == 0 {
log.Warningf("exporter %d send grpc traces failed. err: %s", e.index, err)
}
e.counter.DropCounter++
e.grpcExporters[i] = nil
return err
} else {
e.counter.SendBatchCounter++
}
e.counter.ExportUsedTimeNs += int64(time.Since(now))
return nil
}
func (e *OtlpExporter) newGrpcExporter(i int) error {
if e.grpcConns[i] != nil {
e.grpcConns[i].Close()
e.grpcConns[i] = nil
}
var options = []grpc.DialOption{grpc.WithInsecure(), grpc.WithTimeout(time.Minute)}
conn, err := grpc.Dial(e.config.Addr, options...)
if err != nil {
return fmt.Errorf("grpc dial %s failed, err: %s", e.config.Addr, err)
}
log.Debugf("new grpc otlp exporter: %s", e.config.Addr)
e.grpcConns[i] = conn
e.grpcExporters[i] = ptraceotlp.NewGRPCClient(conn)
return nil
}
func (e *OtlpExporter) HandleSimpleCommand(op uint16, arg string) string {
return fmt.Sprintf("otlp exporter %d last 10s counter: %+v", e.index, e.lastCounter)
}