forked from newrelic/go-agent
/
txn_events.go
197 lines (169 loc) · 5.67 KB
/
txn_events.go
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// Copyright 2020 New Relic Corporation. All rights reserved.
// SPDX-License-Identifier: Apache-2.0
package internal
import (
"bytes"
"sort"
"strings"
"time"
)
// DatastoreExternalTotals contains overview of external and datastore calls
// made during a transaction.
type DatastoreExternalTotals struct {
externalCallCount uint64
externalDuration time.Duration
datastoreCallCount uint64
datastoreDuration time.Duration
}
// WriteJSON prepares JSON in the format expected by the collector.
func (e *TxnEvent) WriteJSON(buf *bytes.Buffer) {
w := jsonFieldsWriter{buf: buf}
buf.WriteByte('[')
buf.WriteByte('{')
w.stringField("type", "Transaction")
w.stringField("name", e.FinalName)
w.floatField("timestamp", timeToFloatSeconds(e.Start))
if ApdexNone != e.Zone {
w.stringField("nr.apdexPerfZone", e.Zone.label())
}
w.boolField("error", e.HasError)
sharedTransactionIntrinsics(e, &w)
// totalTime gets put into transaction events but not error events:
// https://source.datanerd.us/agents/agent-specs/blob/master/Total-Time-Async.md#attributes
w.floatField("totalTime", e.TotalTime.Seconds())
// Write better CAT intrinsics if enabled
sharedBetterCATIntrinsics(e, &w)
if e.BetterCAT.Enabled {
if p := e.BetterCAT.Inbound; nil != p {
if "" != p.TransactionID {
w.stringField("parentId", p.TransactionID)
}
if "" != p.ID {
w.stringField("parentSpanId", p.ID)
}
}
}
// Write old CAT intrinsics if enabled
oldCATIntrinsics(e, &w)
buf.WriteByte('}')
buf.WriteByte(',')
userAttributesJSON(e.Attrs, buf, destTxnEvent, nil)
buf.WriteByte(',')
agentAttributesJSON(e.Attrs, buf, destTxnEvent)
buf.WriteByte(']')
}
// oldCATIntrinsics reports old CAT intrinsics for Transaction
// if CrossProcess.Used() is true
func oldCATIntrinsics(e *TxnEvent, w *jsonFieldsWriter) {
if !e.CrossProcess.Used() {
return
}
if e.CrossProcess.ClientID != "" {
w.stringField("client_cross_process_id", e.CrossProcess.ClientID)
}
if e.CrossProcess.TripID != "" {
w.stringField("nr.tripId", e.CrossProcess.TripID)
}
if e.CrossProcess.PathHash != "" {
w.stringField("nr.pathHash", e.CrossProcess.PathHash)
}
if e.CrossProcess.ReferringPathHash != "" {
w.stringField("nr.referringPathHash", e.CrossProcess.ReferringPathHash)
}
if e.CrossProcess.GUID != "" {
w.stringField("nr.guid", e.CrossProcess.GUID)
}
if e.CrossProcess.ReferringTxnGUID != "" {
w.stringField("nr.referringTransactionGuid", e.CrossProcess.ReferringTxnGUID)
}
if len(e.CrossProcess.AlternatePathHashes) > 0 {
hashes := make([]string, 0, len(e.CrossProcess.AlternatePathHashes))
for hash := range e.CrossProcess.AlternatePathHashes {
hashes = append(hashes, hash)
}
sort.Strings(hashes)
w.stringField("nr.alternatePathHashes", strings.Join(hashes, ","))
}
}
// sharedTransactionIntrinsics reports intrinsics that are shared
// by Transaction and TransactionError
func sharedTransactionIntrinsics(e *TxnEvent, w *jsonFieldsWriter) {
w.floatField("duration", e.Duration.Seconds())
if e.Queuing > 0 {
w.floatField("queueDuration", e.Queuing.Seconds())
}
if e.externalCallCount > 0 {
w.intField("externalCallCount", int64(e.externalCallCount))
w.floatField("externalDuration", e.externalDuration.Seconds())
}
if e.datastoreCallCount > 0 {
// Note that "database" is used for the keys here instead of
// "datastore" for historical reasons.
w.intField("databaseCallCount", int64(e.datastoreCallCount))
w.floatField("databaseDuration", e.datastoreDuration.Seconds())
}
if e.CrossProcess.IsSynthetics() {
w.stringField("nr.syntheticsResourceId", e.CrossProcess.Synthetics.ResourceID)
w.stringField("nr.syntheticsJobId", e.CrossProcess.Synthetics.JobID)
w.stringField("nr.syntheticsMonitorId", e.CrossProcess.Synthetics.MonitorID)
}
}
// sharedBetterCATIntrinsics reports intrinsics that are shared
// by Transaction, TransactionError, and Slow SQL
func sharedBetterCATIntrinsics(e *TxnEvent, w *jsonFieldsWriter) {
if e.BetterCAT.Enabled {
if p := e.BetterCAT.Inbound; nil != p {
w.stringField("parent.type", p.Type)
w.stringField("parent.app", p.App)
w.stringField("parent.account", p.Account)
w.stringField("parent.transportType", p.TransportType)
w.floatField("parent.transportDuration", p.TransportDuration.Seconds())
}
w.stringField("guid", e.BetterCAT.ID)
w.stringField("traceId", e.BetterCAT.TraceID())
w.writerField("priority", e.BetterCAT.Priority)
w.boolField("sampled", e.BetterCAT.Sampled)
}
}
// MarshalJSON is used for testing.
func (e *TxnEvent) MarshalJSON() ([]byte, error) {
buf := bytes.NewBuffer(make([]byte, 0, 256))
e.WriteJSON(buf)
return buf.Bytes(), nil
}
type txnEvents struct {
*analyticsEvents
}
func newTxnEvents(max int) *txnEvents {
return &txnEvents{
analyticsEvents: newAnalyticsEvents(max),
}
}
func (events *txnEvents) AddTxnEvent(e *TxnEvent, priority Priority) {
// Synthetics events always get priority: normal event priorities are in the
// range [0.0,1.99999], so adding 2 means that a Synthetics event will always
// win.
if e.CrossProcess.IsSynthetics() {
priority += 2.0
}
events.addEvent(analyticsEvent{priority: priority, jsonWriter: e})
}
func (events *txnEvents) MergeIntoHarvest(h *Harvest) {
h.TxnEvents.mergeFailed(events.analyticsEvents)
}
func (events *txnEvents) Data(agentRunID string, harvestStart time.Time) ([]byte, error) {
return events.CollectorJSON(agentRunID)
}
func (events *txnEvents) EndpointMethod() string {
return cmdTxnEvents
}
func (events *txnEvents) payloads(limit int) []PayloadCreator {
if events.NumSaved() < float64(limit) {
return []PayloadCreator{events}
}
e1, e2 := events.split()
return []PayloadCreator{
&txnEvents{analyticsEvents: e1},
&txnEvents{analyticsEvents: e2},
}
}