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How to use Dump method of trace Package

Best Go-testdeep code snippet using trace.Dump

messagetracer.go

Source:messagetracer.go

...24	msg      *Message25	pluginID string26}27// codebeat:disable[TOO_MANY_IVARS]28type messageDump struct {29	Step            string30	PluginID        string31	Payload         string32	OriginalPayload string33	Stream          string34	PrevStream      string35	OrigStream      string36	Metadata        tcontainer.MarshalMap37	Source          string38	Timestamp       time.Time39	FingerprintID   uint3240}41// codebeat:enable[TOO_MANY_IVARS]42type messageTracerSource struct {43}44// IsActive returns true if the source can produce messages45func (mts messageTracerSource) IsActive() bool {46	return true47}48// IsBlocked returns true if the source cannot produce messages49func (mts messageTracerSource) IsBlocked() bool {50	return false51}52// GetID returns the pluginID of the message source53func (mts messageTracerSource) GetID() string {54	return "core.MessageTracer"55}56// MessageTrace provide the MessageTrace() function. By default this function do nothing.57var MessageTrace = func(msg *Message, pluginID string, comment string) {}58// ActivateMessageTrace set a MessageTrace function to dump out the message trace59func ActivateMessageTrace() {60	MessageTrace = func(msg *Message, pluginID string, comment string) {61		mt := messageTracer{62			msg:      msg,63			pluginID: pluginID,64		}65		mt.Dump(comment)66	}67}68// DeactivateMessageTrace set a MessageTrace function to default69// This method is necessary for unit testing70func DeactivateMessageTrace() {71	MessageTrace = func(msg *Message, pluginID string, comment string) {}72}73// Dump creates a messageDump struct for the message trace74func (mt *messageTracer) Dump(comment string) {75	if mt.msg.streamID == LogInternalStreamID || mt.msg.streamID == TraceInternalStreamID {76		return77	}78	var err error79	msgDump := mt.newMessageDump(mt.msg, comment)80	if StreamRegistry.IsStreamRegistered(TraceInternalStreamID) {81		err = mt.routeToTraceStream(msgDump)82	} else {83		err = mt.printMessageTrace(msgDump)84	}85	if err != nil {86		logrus.Error(err)87	}88}89func (mt *messageTracer) printMessageTrace(dump messageDump) error {90	jsonData, err := json.MarshalIndent(dump, "", "\t")91	if err == nil {92		_, err = fmt.Println("\n", string(jsonData))93	}94	return err95}96func (mt *messageTracer) routeToTraceStream(dump messageDump) error {97	jsonData, err := json.Marshal(dump)98	if err != nil {99		return err100	}101	traceMsg := NewMessage(messageTracerSource{}, jsonData, nil, TraceInternalStreamID)102	traceRouter := StreamRegistry.GetRouterOrFallback(TraceInternalStreamID)103	return traceRouter.Enqueue(traceMsg)104}105func (mt *messageTracer) newMessageDump(msg *Message, comment string) messageDump {106	dump := messageDump{}107	// set general trace info108	dump.Step = comment109	dump.PluginID = mt.pluginID110	// prepare message payloads data111	dump.Payload = msg.String()112	if msg.orig != nil {113		dump.OriginalPayload = string(msg.orig.payload)114	}115	// prepare message streams data116	dump.Stream = mt.getStreamName(msg.streamID)117	dump.PrevStream = mt.getStreamName(msg.prevStreamID)118	dump.OrigStream = mt.getStreamName(msg.origStreamID)119	// prepare meta data120	if metadata := msg.TryGetMetadata(); metadata != nil {121		dump.Metadata = metadata.Clone()122	}123	// set source data124	if msg.source != nil {125		dump.Source = msg.source.GetID()126	}127	//  set timestamp128	dump.Timestamp = msg.GetCreationTime()129	dump.FingerprintID = mt.createFingerPrintID(&dump)130	return dump131}132func (mt *messageTracer) createFingerPrintID(dump *messageDump) uint32 {133	hash := fnv.New32a()134	hash.Write([]byte(dump.Source))135	hash.Write([]byte(dump.Timestamp.String()))136	return hash.Sum32()137}138// get stream name and translate InvalidStreamID ("") to InvalidStream139func (mt *messageTracer) getStreamName(streamID MessageStreamID) string {140	if streamID == InvalidStreamID {141		return "InvalidStream"142	}143	return StreamRegistry.GetStreamName(streamID)144}...

tracedumper.go

Source:tracedumper.go

...23	"github.com/cockroachdb/cockroach/pkg/util/tracing/zipper"24	"github.com/cockroachdb/errors"25)26const (27	jobTraceDumpPrefix = "job_trace_dump"28	timeFormat         = "2006-01-02T15_04_05.000"29)30var (31	totalDumpSizeLimit = settings.RegisterByteSizeSetting(32		"server.job_trace.total_dump_size_limit",33		"total size of job trace dumps to be kept. "+34			"Dumps are GC'ed in the order of creation time. The latest dump is "+35			"always kept even if its size exceeds the limit.",36		500<<20, // 500MiB37	)38)39// TraceDumper can be used to dump a zip file containing cluster wide inflight40// trace spans for a particular trace, to a configured dir.41type TraceDumper struct {42	currentTime func() time.Time43	store       *dumpstore.DumpStore44}45// PreFilter is part of the dumpstore.Dumper interface.46func (t *TraceDumper) PreFilter(47	ctx context.Context, files []os.FileInfo, _ func(fileName string) error,48) (preserved map[int]bool, err error) {49	preserved = make(map[int]bool)50	for i := len(files) - 1; i >= 0; i-- {51		// Always preserve the last dump in chronological order.52		if t.CheckOwnsFile(ctx, files[i]) {53			preserved[i] = true54			break55		}56	}57	return58}59// CheckOwnsFile is part of the dumpstore.Dumper interface.60func (t *TraceDumper) CheckOwnsFile(ctx context.Context, fi os.FileInfo) bool {61	return strings.HasPrefix(fi.Name(), jobTraceDumpPrefix)62}63var _ dumpstore.Dumper = &TraceDumper{}64// Dump attempts to dump a trace zip of cluster wide inflight trace spans65// with traceID, to the configured dir.66// The file names are prefixed with the timestamp of when it was written, to67// facilitate GC of older trace zips.68func (t *TraceDumper) Dump(69	ctx context.Context, name string, traceID int64, ie sqlutil.InternalExecutor,70) {71	err := func() error {72		now := t.currentTime()73		traceZipFile := fmt.Sprintf(74			"%s.%s.%s.zip",75			jobTraceDumpPrefix,76			now.Format(timeFormat),77			name,78		)79		z := zipper.MakeInternalExecutorInflightTraceZipper(ie)80		zipBytes, err := z.Zip(ctx, traceID)81		if err != nil {82			return errors.Wrap(err, "failed to collect inflight trace zip")83		}84		path := t.store.GetFullPath(traceZipFile)85		f, err := os.Create(path)86		if err != nil {87			return errors.Wrapf(err, "error creating file %q for trace dump", path)88		}89		defer f.Close()90		_, err = f.Write(zipBytes)91		if err != nil {92			return errors.Newf("error writing zip file %q for trace dump", path)93		}94		return nil95	}()96	if err != nil {97		log.Errorf(ctx, "failed to dump trace %v", err)98	}99}100// NewTraceDumper returns a TraceDumper.101//102// dir is the directory in which dumps are stored.103func NewTraceDumper(ctx context.Context, dir string, st *cluster.Settings) *TraceDumper {104	if dir == "" {105		return nil106	}107	log.Infof(ctx, "writing job trace dumps to %s", dir)108	td := &TraceDumper{109		currentTime: timeutil.Now,110		store:       dumpstore.NewStore(dir, totalDumpSizeLimit, st),111	}112	return td113}...

Dump

Using AI Code Generation

1import (2func main() {3    trace.Start(os.Stderr)4    defer trace.Stop()5    fmt.Println("Hello, playground")6}7import (8func main() {9    trace.Start(os.Stderr)10    defer trace.Stop()11    fmt.Println("Hello, playground")12}13import (14func main() {15    trace.Start(os.Stderr)16    defer trace.Stop()17    fmt.Println("Hello, playground")18}19import (20func main() {21    trace.Start(os.Stderr)22    defer trace.Stop()23    fmt.Println("Hello, playground")24}25import (26func main() {27    trace.Start(os.Stderr)28    defer trace.Stop()29    fmt.Println("Hello, playground")30}31import (32func main() {33    trace.Start(os.Stderr)34    defer trace.Stop()35    fmt.Println("Hello, playground")36}37import (38func main() {39    trace.Start(os.Stderr)40    defer trace.Stop()41    fmt.Println("Hello, playground")42}43import (44func main() {45    trace.Start(os.Stderr)46    defer trace.Stop()47    fmt.Println("Hello, playground")48}49import (50func main() {51    trace.Start(os.Stderr)52    defer trace.Stop()53    fmt.Println("Hello, playground")54}

Dump

Using AI Code Generation

1import (2func main() {3	trace.Start(os.Stderr)4	defer trace.Stop()5	for i := 0; i < 10; i++ {6		fmt.Println(i)7	}8}9import (10func main() {11	trace.Start(os.Stderr)12	defer trace.Stop()13	for i := 0; i < 10; i++ {14		fmt.Println(i)15	}16}17import (18func main() {19	trace.Start(os.Stderr)20	defer trace.Stop()21	for i := 0; i < 10; i++ {22		fmt.Println(i)23	}24}25import (26func main() {27	trace.Start(os.Stderr)28	defer trace.Stop()29	for i := 0; i < 10; i++ {30		fmt.Println(i)31	}32}33import (34func main() {35	trace.Start(os.Stderr)36	defer trace.Stop()37	for i := 0; i < 10; i++ {38		fmt.Println(i)39	}40}41import (

Dump

Using AI Code Generation

1import (2func main() {3    trace.Start(os.Stderr)4    defer trace.Stop()5    fmt.Println("hello")6}7import (8func main() {9    trace.Start(os.Stderr)10    defer trace.Stop()11    fmt.Println("hello")12    trace.Stop()13}14import (15func main() {16    trace.Start(os.Stderr)17    defer trace.Stop()18    fmt.Println("hello")19    trace.Stop()20    trace.Start(os.Stderr)21    fmt.Println("hello")22    trace.Stop()23}24import (25func main() {26    trace.Start(os.Stderr)27    defer trace.Stop()28    fmt.Println("hello")29    trace.Start(os.Stderr)30    fmt.Println("hello")31    trace.Stop()32}33import (34func main() {35    trace.Start(os.Stderr)36    defer trace.Stop()37    fmt.Println("hello")38    trace.Start(os.Stderr)39    fmt.Println("hello")40    trace.Stop()41    trace.Stop()42}43import (44func main() {45    trace.Start(os.Stderr)46    defer trace.Stop()47    fmt.Println("hello")48    trace.Start(os.Stderr)49    fmt.Println("hello")50    trace.Stop()51    trace.Start(os.Stderr)52    fmt.Println("hello")53    trace.Stop()54}55import (56func main() {57    trace.Start(os.Stderr)58    defer trace.Stop()59    fmt.Println("hello")60    trace.Start(os.Stderr)61    fmt.Println("hello")62    trace.Stop()63    trace.Start(os.Stderr)64    fmt.Println("hello")

Dump

Using AI Code Generation

1import (2func main() {3	trace.Start(os.Stderr)4	defer trace.Stop()5	log.Println("Hello World")6	for i := 0; i < 10; i++ {7		go func() {8			for {9			}10		}()11	}12	runtime.Gosched()13}14import (15func main() {16	trace.Start(os.Stderr)17	defer trace.Stop()18	log.Println("Hello World")19	for i := 0; i < 10; i++ {20		go func() {21			for {22			}23		}()24	}25	runtime.Gosched()26}27import (28func main() {29	trace.Start(os.Stderr)30	defer trace.Stop()31	log.Println("Hello World")32	for i := 0; i < 10; i++ {33		go func() {34			for {35			}36		}()37	}38	runtime.Gosched()39}40import (41func main() {42	trace.Start(os.Stderr)43	defer trace.Stop()44	log.Println("Hello World")45	for i := 0; i < 10; i++ {46		go func() {47			for {48			}49		}()50	}51	runtime.Gosched()52}53import (54func main() {55	trace.Start(os.Stderr)56	defer trace.Stop()57	log.Println("Hello World")58	for i := 0; i < 10; i++ {59		go func() {60			for {61			}62		}()63	}64	runtime.Gosched()65}66import (

Dump

Using AI Code Generation

1import (2func main() {3 trace.Start(os.Stderr)4 defer trace.Stop()5 fmt.Println("Hello world")6}

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