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Merge pull request 'tracer: improve' (#242) from tracer into master

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Reviewed-on: #242
This commit is contained in:
Василий Толстов 2023-09-08 14:01:01 +03:00
commit 65d715c9da
7 changed files with 562 additions and 31 deletions
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5
go.mod
View File

@ -9,12 +9,13 @@ require (
github.com/patrickmn/go-cache v2.1.0+incompatible
github.com/silas/dag v0.0.0-20220518035006-a7e85ada93c5
golang.org/x/sync v0.3.0
golang.org/x/sys v0.7.0
golang.org/x/sys v0.11.0
google.golang.org/grpc v1.57.0
google.golang.org/protobuf v1.31.0
)
require (
github.com/golang/protobuf v1.5.3 // indirect
google.golang.org/genproto/googleapis/rpc v0.0.0-20230525234030-28d5490b6b19 // indirect
golang.org/x/net v0.14.0 // indirect
google.golang.org/genproto/googleapis/rpc v0.0.0-20230526203410-71b5a4ffd15e // indirect
)

13
go.sum
View File

@ -13,15 +13,16 @@ github.com/patrickmn/go-cache v2.1.0+incompatible h1:HRMgzkcYKYpi3C8ajMPV8OFXaaR
github.com/patrickmn/go-cache v2.1.0+incompatible/go.mod h1:3Qf8kWWT7OJRJbdiICTKqZju1ZixQ/KpMGzzAfe6+WQ=
github.com/silas/dag v0.0.0-20220518035006-a7e85ada93c5 h1:G/FZtUu7a6NTWl3KUHMV9jkLAh/Rvtf03NWMHaEDl+E=
github.com/silas/dag v0.0.0-20220518035006-a7e85ada93c5/go.mod h1:7RTUFBdIRC9nZ7/3RyRNH1bdqIShrDejd1YbLwgPS+I=
golang.org/x/net v0.9.0 h1:aWJ/m6xSmxWBx+V0XRHTlrYrPG56jKsLdTFmsSsCzOM=
golang.org/x/net v0.14.0 h1:BONx9s002vGdD9umnlX1Po8vOZmrgH34qlHcD1MfK14=
golang.org/x/net v0.14.0/go.mod h1:PpSgVXXLK0OxS0F31C1/tv6XNguvCrnXIDrFMspZIUI=
golang.org/x/sync v0.3.0 h1:ftCYgMx6zT/asHUrPw8BLLscYtGznsLAnjq5RH9P66E=
golang.org/x/sync v0.3.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
golang.org/x/sys v0.7.0 h1:3jlCCIQZPdOYu1h8BkNvLz8Kgwtae2cagcG/VamtZRU=
golang.org/x/sys v0.7.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/text v0.9.0 h1:2sjJmO8cDvYveuX97RDLsxlyUxLl+GHoLxBiRdHllBE=
golang.org/x/sys v0.11.0 h1:eG7RXZHdqOJ1i+0lgLgCpSXAp6M3LYlAo6osgSi0xOM=
golang.org/x/sys v0.11.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/text v0.12.0 h1:k+n5B8goJNdU7hSvEtMUz3d1Q6D/XW4COJSJR6fN0mc=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/genproto/googleapis/rpc v0.0.0-20230525234030-28d5490b6b19 h1:0nDDozoAU19Qb2HwhXadU8OcsiO/09cnTqhUtq2MEOM=
google.golang.org/genproto/googleapis/rpc v0.0.0-20230525234030-28d5490b6b19/go.mod h1:66JfowdXAEgad5O9NnYcsNPLCPZJD++2L9X0PCMODrA=
google.golang.org/genproto/googleapis/rpc v0.0.0-20230526203410-71b5a4ffd15e h1:NumxXLPfHSndr3wBBdeKiVHjGVFzi9RX2HwwQke94iY=
google.golang.org/genproto/googleapis/rpc v0.0.0-20230526203410-71b5a4ffd15e/go.mod h1:66JfowdXAEgad5O9NnYcsNPLCPZJD++2L9X0PCMODrA=
google.golang.org/grpc v1.57.0 h1:kfzNeI/klCGD2YPMUlaGNT3pxvYfga7smW3Vth8Zsiw=
google.golang.org/grpc v1.57.0/go.mod h1:Sd+9RMTACXwmub0zcNY2c4arhtrbBYD1AUHI/dt16Mo=
google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=

36
tracer/noop.go
View File

@ -9,19 +9,27 @@ import (
var _ Tracer = (*noopTracer)(nil)
type noopTracer struct {
opts Options
opts Options
spans []Span
}
func (t *noopTracer) Spans() []Span {
return t.spans
}
func (t *noopTracer) Start(ctx context.Context, name string, opts ...options.Option) (context.Context, Span) {
options := NewSpanOptions(opts...)
span := &noopSpan{
name: name,
ctx: ctx,
tracer: t,
opts: NewSpanOptions(opts...),
labels: options.Labels,
kind: options.Kind,
}
if span.ctx == nil {
span.ctx = context.Background()
}
t.spans = append(t.spans, span)
return NewSpanContext(ctx, span), span
}
@ -40,13 +48,21 @@ func (t *noopTracer) Name() string {
return t.opts.Name
}
type noopEvent struct {
name string
labels []interface{}
}
type noopSpan struct {
ctx context.Context
tracer Tracer
name string
opts SpanOptions
status SpanStatus
statusMsg string
events []*noopEvent
labels []interface{}
logs []interface{}
kind SpanKind
status SpanStatus
}
func (s *noopSpan) Finish(opts ...options.Option) {
@ -61,22 +77,24 @@ func (s *noopSpan) Tracer() Tracer {
}
func (s *noopSpan) AddEvent(name string, opts ...options.Option) {
options := NewEventOptions(opts...)
s.events = append(s.events, &noopEvent{name: name, labels: options.Labels})
}
func (s *noopSpan) SetName(name string) {
s.name = name
}
func (s *noopSpan) SetLabels(labels ...interface{}) {
s.opts.Labels = labels
func (s *noopSpan) AddLogs(kv ...interface{}) {
s.logs = append(s.logs, kv...)
}
func (s *noopSpan) AddLabels(labels ...interface{}) {
s.opts.Labels = append(s.opts.Labels, labels...)
func (s *noopSpan) AddLabels(kv ...interface{}) {
s.labels = append(s.labels, kv...)
}
func (s *noopSpan) Kind() SpanKind {
return s.opts.Kind
return s.kind
}
func (s *noopSpan) Status() (SpanStatus, string) {

17
tracer/options.go
View File

@ -93,14 +93,6 @@ type EventOptions struct {
Labels []interface{}
}
func WithEventLabels(labels ...interface{}) options.Option {
return options.Labels(labels...)
}
func WithSpanLabels(labels ...interface{}) options.Option {
return options.Labels(labels...)
}
func WithSpanKind(k SpanKind) options.Option {
return func(src interface{}) error {
return options.Set(src, k, ".Kind")
@ -128,6 +120,15 @@ func NewSpanOptions(opts ...options.Option) SpanOptions {
return options
}
// NewEventOptions returns default EventOptions
func NewEventOptions(opts ...options.Option) EventOptions {
options := EventOptions{}
for _, o := range opts {
o(&options)
}
return options
}
// NewOptions returns default options
func NewOptions(opts ...options.Option) Options {
options := Options{

12
tracer/tracer.go
View File

@ -29,8 +29,6 @@ type Span interface {
Tracer() Tracer
// Finish complete and send span
Finish(opts ...options.Option)
// AddEvent add event to span
AddEvent(name string, opts ...options.Option)
// Context return context with span
Context() context.Context
// SetName set the span name
@ -39,10 +37,12 @@ type Span interface {
SetStatus(status SpanStatus, msg string)
// Status returns span status and msg
Status() (SpanStatus, string)
// SetLabels set the span labels
SetLabels(labels ...interface{})
// AddLabels append the span labels
AddLabels(labels ...interface{})
// AddLabels append labels to span
AddLabels(kv ...interface{})
// AddEvent append event to span
AddEvent(name string, opts ...options.Option)
// AddLogs append logs to span
AddLogs(kv ...interface{})
// Kind returns span kind
Kind() SpanKind
}

256
util/grpc/tracer.go Normal file
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@ -0,0 +1,256 @@
package grpc_util
import (
"context"
"net"
"strconv"
"strings"
"sync/atomic"
"time"
"go.unistack.org/micro/v4/options"
"go.unistack.org/micro/v4/tracer"
grpc_codes "google.golang.org/grpc/codes"
"google.golang.org/grpc/peer"
"google.golang.org/grpc/stats"
"google.golang.org/grpc/status"
)
type gRPCContextKey struct{}
type gRPCContext struct {
messagesReceived int64
messagesSent int64
}
type Options struct {
Tracer tracer.Tracer
}
// NewServerHandler creates a stats.Handler for gRPC server.
func NewServerHandler(tr tracer.Tracer) stats.Handler {
h := &serverHandler{
tr: tr,
}
return h
}
type serverHandler struct {
tr tracer.Tracer
}
// TagRPC can attach some information to the given context.
func (h *serverHandler) TagRPC(ctx context.Context, info *stats.RPCTagInfo) context.Context {
name, attrs := parseFullMethod(info.FullMethodName)
attrs = append(attrs, "rpc.system", "grpc")
ctx, _ = h.tr.Start(
ctx,
name,
tracer.WithSpanKind(tracer.SpanKindServer),
options.Labels(attrs...),
)
gctx := gRPCContext{}
return context.WithValue(ctx, gRPCContextKey{}, &gctx)
}
// HandleRPC processes the RPC stats.
func (h *serverHandler) HandleRPC(ctx context.Context, rs stats.RPCStats) {
handleRPC(ctx, rs)
}
// TagConn can attach some information to the given context.
func (h *serverHandler) TagConn(ctx context.Context, info *stats.ConnTagInfo) context.Context {
if span, ok := tracer.SpanFromContext(ctx); ok {
attrs := peerAttr(peerFromCtx(ctx))
span.AddLabels(attrs...)
}
return ctx
}
// HandleConn processes the Conn stats.
func (h *serverHandler) HandleConn(ctx context.Context, info stats.ConnStats) {
}
type clientHandler struct {
tr tracer.Tracer
}
// NewClientHandler creates a stats.Handler for gRPC client.
func NewClientHandler(tr tracer.Tracer) stats.Handler {
h := &clientHandler{
tr: tr,
}
return h
}
// TagRPC can attach some information to the given context.
func (h *clientHandler) TagRPC(ctx context.Context, info *stats.RPCTagInfo) context.Context {
name, attrs := parseFullMethod(info.FullMethodName)
attrs = append(attrs, "rpc.system", "grpc", "rpc.flavor", "grpc", "rpc.call", info.FullMethodName)
ctx, _ = h.tr.Start(
ctx,
name,
tracer.WithSpanKind(tracer.SpanKindClient),
options.Labels(attrs...),
)
gctx := gRPCContext{}
return context.WithValue(ctx, gRPCContextKey{}, &gctx)
}
// HandleRPC processes the RPC stats.
func (h *clientHandler) HandleRPC(ctx context.Context, rs stats.RPCStats) {
handleRPC(ctx, rs)
}
// TagConn can attach some information to the given context.
func (h *clientHandler) TagConn(ctx context.Context, cti *stats.ConnTagInfo) context.Context {
// TODO
if span, ok := tracer.SpanFromContext(ctx); ok {
attrs := peerAttr(cti.RemoteAddr.String())
span.AddLabels(attrs...)
}
return ctx
}
// HandleConn processes the Conn stats.
func (h *clientHandler) HandleConn(context.Context, stats.ConnStats) {
// no-op
}
func handleRPC(ctx context.Context, rs stats.RPCStats) {
span, ok := tracer.SpanFromContext(ctx)
gctx, _ := ctx.Value(gRPCContextKey{}).(*gRPCContext)
var messageID int64
if rs.IsClient() {
span.AddLabels("span.kind", "client")
} else {
span.AddLabels("span.kind", "server")
}
switch rs := rs.(type) {
case *stats.Begin:
if rs.IsClientStream || rs.IsServerStream {
span.AddLabels("rpc.call_type", "stream")
} else {
span.AddLabels("rpc.call_type", "unary")
}
span.AddEvent("message",
options.Labels(
"message.begin_time", rs.BeginTime.Format(time.RFC3339),
),
)
case *stats.InPayload:
if gctx != nil {
messageID = atomic.AddInt64(&gctx.messagesReceived, 1)
}
if ok {
span.AddEvent("message",
options.Labels(
"message.recv_time", rs.RecvTime.Format(time.RFC3339),
"message.type", "RECEIVED",
"message.id", messageID,
"message.compressed_size", rs.CompressedLength,
"message.uncompressed_size", rs.Length,
),
)
}
case *stats.OutPayload:
if gctx != nil {
messageID = atomic.AddInt64(&gctx.messagesSent, 1)
}
if ok {
span.AddEvent("message",
options.Labels(
"message.sent_time", rs.SentTime.Format(time.RFC3339),
"message.type", "SENT",
"message.id", messageID,
"message.compressed_size", rs.CompressedLength,
"message.uncompressed_size", rs.Length,
),
)
}
case *stats.End:
if ok {
span.AddEvent("message",
options.Labels(
"message.begin_time", rs.BeginTime.Format(time.RFC3339),
"message.end_time", rs.EndTime.Format(time.RFC3339),
),
)
if rs.Error != nil {
s, _ := status.FromError(rs.Error)
span.SetStatus(tracer.SpanStatusError, s.Message())
span.AddLabels("rpc.grpc.status_code", s.Code())
} else {
span.AddLabels("rpc.grpc.status_code", grpc_codes.OK)
}
span.Finish()
}
default:
return
}
}
func parseFullMethod(fullMethod string) (string, []interface{}) {
if !strings.HasPrefix(fullMethod, "/") {
// Invalid format, does not follow `/package.service/method`.
return fullMethod, nil
}
name := fullMethod[1:]
pos := strings.LastIndex(name, "/")
if pos < 0 {
// Invalid format, does not follow `/package.service/method`.
return name, nil
}
service, method := name[:pos], name[pos+1:]
var attrs []interface{}
if service != "" {
attrs = append(attrs, "rpc.service", service)
}
if method != "" {
attrs = append(attrs, "rpc.method", method)
}
return name, attrs
}
func peerAttr(addr string) []interface{} {
host, p, err := net.SplitHostPort(addr)
if err != nil {
return nil
}
if host == "" {
host = "127.0.0.1"
}
port, err := strconv.Atoi(p)
if err != nil {
return nil
}
var attr []interface{}
if ip := net.ParseIP(host); ip != nil {
attr = []interface{}{
"net.sock.peer.addr", host,
"net.sock.peer.port", port,
}
} else {
attr = []interface{}{
"net.peer.name", host,
"net.peer.port", port,
}
}
return attr
}
func peerFromCtx(ctx context.Context) string {
p, ok := peer.FromContext(ctx)
if !ok {
return ""
}
return p.Addr.String()
}

254
util/http/clienttracer.go Normal file
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@ -0,0 +1,254 @@
//
// Copyright The OpenTelemetry Authors
//
// 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 http
import (
"context"
"crypto/tls"
"net/http/httptrace"
"net/textproto"
"strings"
"sync"
"go.unistack.org/micro/v4/options"
"go.unistack.org/micro/v4/tracer"
)
const (
httpStatus = "http.status"
httpHeaderMIME = "http.mime"
httpRemoteAddr = "http.remote"
httpLocalAddr = "http.local"
httpHost = "http.host"
)
var hookMap = map[string]string{
"http.dns": "http.getconn",
"http.connect": "http.getconn",
"http.tls": "http.getconn",
}
func parentHook(hook string) string {
if strings.HasPrefix(hook, "http.connect") {
return hookMap["http.connect"]
}
return hookMap[hook]
}
type clientTracer struct {
context.Context
tr tracer.Tracer
activeHooks map[string]context.Context
root tracer.Span
mtx sync.Mutex
}
func NewClientTrace(ctx context.Context, tr tracer.Tracer) *httptrace.ClientTrace {
ct := &clientTracer{
Context: ctx,
activeHooks: make(map[string]context.Context),
tr: tr,
}
return &httptrace.ClientTrace{
GetConn: ct.getConn,
GotConn: ct.gotConn,
PutIdleConn: ct.putIdleConn,
GotFirstResponseByte: ct.gotFirstResponseByte,
Got100Continue: ct.got100Continue,
Got1xxResponse: ct.got1xxResponse,
DNSStart: ct.dnsStart,
DNSDone: ct.dnsDone,
ConnectStart: ct.connectStart,
ConnectDone: ct.connectDone,
TLSHandshakeStart: ct.tlsHandshakeStart,
TLSHandshakeDone: ct.tlsHandshakeDone,
WroteHeaderField: ct.wroteHeaderField,
WroteHeaders: ct.wroteHeaders,
Wait100Continue: ct.wait100Continue,
WroteRequest: ct.wroteRequest,
}
}
func (ct *clientTracer) start(hook, spanName string, attrs ...interface{}) {
ct.mtx.Lock()
defer ct.mtx.Unlock()
if hookCtx, found := ct.activeHooks[hook]; !found {
var sp tracer.Span
ct.activeHooks[hook], sp = ct.tr.Start(ct.getParentContext(hook), spanName, options.Labels(attrs...), tracer.WithSpanKind(tracer.SpanKindClient))
if ct.root == nil {
ct.root = sp
}
} else {
// end was called before start finished, add the start attributes and end the span here
if span, ok := tracer.SpanFromContext(hookCtx); ok {
span.AddLabels(attrs...)
span.Finish()
}
delete(ct.activeHooks, hook)
}
}
func (ct *clientTracer) end(hook string, err error, attrs ...interface{}) {
ct.mtx.Lock()
defer ct.mtx.Unlock()
if ctx, ok := ct.activeHooks[hook]; ok { // nolint:nestif
if span, ok := tracer.SpanFromContext(ctx); ok {
if err != nil {
span.SetStatus(tracer.SpanStatusError, err.Error())
}
span.AddLabels(attrs...)
span.Finish()
}
delete(ct.activeHooks, hook)
} else {
// start is not finished before end is called.
// Start a span here with the ending attributes that will be finished when start finishes.
// Yes, it's backwards. v0v
ctx, span := ct.tr.Start(ct.getParentContext(hook), hook, options.Labels(attrs...), tracer.WithSpanKind(tracer.SpanKindClient))
if err != nil {
span.SetStatus(tracer.SpanStatusError, err.Error())
}
ct.activeHooks[hook] = ctx
}
}
func (ct *clientTracer) getParentContext(hook string) context.Context {
ctx, ok := ct.activeHooks[parentHook(hook)]
if !ok {
return ct.Context
}
return ctx
}
func (ct *clientTracer) span(hook string) (tracer.Span, bool) {
ct.mtx.Lock()
defer ct.mtx.Unlock()
if ctx, ok := ct.activeHooks[hook]; ok {
return tracer.SpanFromContext(ctx)
}
return nil, false
}
func (ct *clientTracer) getConn(host string) {
ct.start("http.getconn", "http.getconn", httpHost, host)
}
func (ct *clientTracer) gotConn(info httptrace.GotConnInfo) {
ct.end("http.getconn",
nil,
httpRemoteAddr, info.Conn.RemoteAddr().String(),
httpLocalAddr, info.Conn.LocalAddr().String(),
)
}
func (ct *clientTracer) putIdleConn(err error) {
ct.end("http.receive", err)
}
func (ct *clientTracer) gotFirstResponseByte() {
ct.start("http.receive", "http.receive")
}
func (ct *clientTracer) dnsStart(info httptrace.DNSStartInfo) {
ct.start("http.dns", "http.dns", httpHost, info.Host)
}
func (ct *clientTracer) dnsDone(info httptrace.DNSDoneInfo) {
ct.end("http.dns", info.Err)
}
func (ct *clientTracer) connectStart(network, addr string) {
_ = network
ct.start("http.connect."+addr, "http.connect", httpRemoteAddr, addr)
}
func (ct *clientTracer) connectDone(network, addr string, err error) {
_ = network
ct.end("http.connect."+addr, err)
}
func (ct *clientTracer) tlsHandshakeStart() {
ct.start("http.tls", "http.tls")
}
func (ct *clientTracer) tlsHandshakeDone(_ tls.ConnectionState, err error) {
ct.end("http.tls", err)
}
func (ct *clientTracer) wroteHeaderField(k string, v []string) {
if sp, ok := ct.span("http.headers"); !ok || sp == nil {
ct.start("http.headers", "http.headers")
}
ct.root.AddLabels("http."+strings.ToLower(k), sliceToString(v))
}
func (ct *clientTracer) wroteHeaders() {
ct.start("http.send", "http.send")
}
func (ct *clientTracer) wroteRequest(info httptrace.WroteRequestInfo) {
if info.Err != nil {
ct.root.SetStatus(tracer.SpanStatusError, info.Err.Error())
}
ct.end("http.send", info.Err)
}
func (ct *clientTracer) got100Continue() {
if sp, ok := ct.span("http.receive"); ok && sp != nil {
sp.AddEvent("GOT 100 - Continue")
}
}
func (ct *clientTracer) wait100Continue() {
if sp, ok := ct.span("http.receive"); ok && sp != nil {
sp.AddEvent("GOT 100 - Wait")
}
}
func (ct *clientTracer) got1xxResponse(code int, header textproto.MIMEHeader) error {
if sp, ok := ct.span("http.receive"); ok && sp != nil {
sp.AddEvent("GOT 1xx",
options.Labels(
httpStatus, code,
httpHeaderMIME, sm2s(header),
),
)
}
return nil
}
func sliceToString(value []string) string {
if len(value) == 0 {
return "undefined"
}
return strings.Join(value, ",")
}
func sm2s(value map[string][]string) string {
var buf strings.Builder
for k, v := range value {
if buf.Len() != 0 {
buf.WriteString(",")
}
buf.WriteString(k)
buf.WriteString("=")
buf.WriteString(sliceToString(v))
}
return buf.String()
}