sub timeout for fs init

go.mod

@@ -20,6 +20,8 @@ require (
 	github.com/go-git/go-billy/v5 v5.5.0
 	github.com/gofrs/uuid/v5 v5.0.0
 	github.com/google/uuid v1.5.0
+	github.com/grafana/otel-profiling-go v0.5.1
+	github.com/grafana/pyroscope-go v1.1.1
 	github.com/hashicorp/go-multierror v1.1.1
 	github.com/hashicorp/golang-lru/v2 v2.0.7
 	github.com/knadh/koanf/parsers/yaml v0.1.0
@@ -106,6 +108,7 @@ require (
 	github.com/google/btree v1.1.2 // indirect
 	github.com/google/flatbuffers v2.0.8+incompatible // indirect
 	github.com/gorilla/websocket v1.5.0 // indirect
+	github.com/grafana/pyroscope-go/godeltaprof v0.1.6 // indirect
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.19.0 // indirect
 	github.com/hashicorp/errwrap v1.0.0 // indirect
 	github.com/huandu/xstrings v1.3.2 // indirect

go.sum

@@ -223,6 +223,7 @@ github.com/go-llsqlite/crawshaw v0.4.0/go.mod h1:/YJdV7uBQaYDE0fwe4z3wwJIZBJxdYz
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
+github.com/go-logr/logr v1.3.0/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
 github.com/go-logr/logr v1.4.1 h1:pKouT5E8xu9zeFC39JXRDukb6JFQPXM5p5I91188VAQ=
 github.com/go-logr/logr v1.4.1/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
 github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
@@ -319,6 +320,12 @@ github.com/gorilla/context v1.1.1/go.mod h1:kBGZzfjB9CEq2AlWe17Uuf7NDRt0dE0s8S51
 github.com/gorilla/mux v1.6.2/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
 github.com/gorilla/websocket v1.5.0 h1:PPwGk2jz7EePpoHN/+ClbZu8SPxiqlu12wZP/3sWmnc=
 github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
+github.com/grafana/otel-profiling-go v0.5.1 h1:stVPKAFZSa7eGiqbYuG25VcqYksR6iWvF3YH66t4qL8=
+github.com/grafana/otel-profiling-go v0.5.1/go.mod h1:ftN/t5A/4gQI19/8MoWurBEtC6gFw8Dns1sJZ9W4Tls=
+github.com/grafana/pyroscope-go v1.1.1 h1:PQoUU9oWtO3ve/fgIiklYuGilvsm8qaGhlY4Vw6MAcQ=
+github.com/grafana/pyroscope-go v1.1.1/go.mod h1:Mw26jU7jsL/KStNSGGuuVYdUq7Qghem5P8aXYXSXG88=
+github.com/grafana/pyroscope-go/godeltaprof v0.1.6 h1:nEdZ8louGAplSvIJi1HVp7kWvFvdiiYg3COLlTwJiFo=
+github.com/grafana/pyroscope-go/godeltaprof v0.1.6/go.mod h1:Tk376Nbldo4Cha9RgiU7ik8WKFkNpfds98aUzS8omLE=
 github.com/grpc-ecosystem/grpc-gateway/v2 v2.19.0 h1:Wqo399gCIufwto+VfwCSvsnfGpF/w5E9CNxSwbpD6No=
 github.com/grpc-ecosystem/grpc-gateway/v2 v2.19.0/go.mod h1:qmOFXW2epJhM0qSnUUYpldc7gVz2KMQwJ/QYCDIa7XU=
 github.com/hashicorp/errwrap v1.0.0 h1:hLrqtEDnRye3+sgx6z4qVLNuviH3MR5aQ0ykNJa/UYA=
@@ -351,6 +358,7 @@ github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfV
 github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
 github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
+github.com/klauspost/compress v1.17.3/go.mod h1:/dCuZOvVtNoHsyb+cuJD3itjs3NbnF6KH9zAO4BDxPM=
 github.com/klauspost/compress v1.17.4 h1:Ej5ixsIri7BrIjBkRZLTo6ghwrEtHFk7ijlczPW4fZ4=
 github.com/klauspost/compress v1.17.4/go.mod h1:/dCuZOvVtNoHsyb+cuJD3itjs3NbnF6KH9zAO4BDxPM=
 github.com/klauspost/cpuid/v2 v2.0.9/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
@@ -631,6 +639,7 @@ go.opencensus.io v0.24.0 h1:y73uSU6J157QMP2kn2r30vwW1A2W2WFwSCGnAVxeaD0=
 go.opencensus.io v0.24.0/go.mod h1:vNK8G9p7aAivkbmorf4v+7Hgx+Zs0yY+0fOtgBfjQKo=
 go.opentelemetry.io/contrib v1.21.1 h1:/U05KZ31iqMqAowhtW10cDPAViNY0tnpAacUgYBmuj8=
 go.opentelemetry.io/contrib v1.21.1/go.mod h1:usW9bPlrjHiJFbK0a6yK/M5wNHs3nLmtrT3vzhoD3co=
+go.opentelemetry.io/otel v1.21.0/go.mod h1:QZzNPQPm1zLX4gZK4cMi+71eaorMSGT3A4znnUvNNEo=
 go.opentelemetry.io/otel v1.24.0 h1:0LAOdjNmQeSTzGBzduGe/rU4tZhMwL5rWgtp9Ku5Jfo=
 go.opentelemetry.io/otel v1.24.0/go.mod h1:W7b9Ozg4nkF5tWI5zsXkaKKDjdVjpD4oAt9Qi/MArHo=
 go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.24.0 h1:t6wl9SPayj+c7lEIFgm4ooDBZVb01IhLB4InpomhRw8=
@@ -639,12 +648,15 @@ go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.24.0 h1:Xw8U6
 go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.24.0/go.mod h1:6KW1Fm6R/s6Z3PGXwSJN2K4eT6wQB3vXX6CVnYX9NmM=
 go.opentelemetry.io/otel/exporters/prometheus v0.46.0 h1:I8WIFXR351FoLJYuloU4EgXbtNX2URfU/85pUPheIEQ=
 go.opentelemetry.io/otel/exporters/prometheus v0.46.0/go.mod h1:ztwVUHe5DTR/1v7PeuGRnU5Bbd4QKYwApWmuutKsJSs=
+go.opentelemetry.io/otel/metric v1.21.0/go.mod h1:o1p3CA8nNHW8j5yuQLdc1eeqEaPfzug24uvsyIEJRWM=
 go.opentelemetry.io/otel/metric v1.24.0 h1:6EhoGWWK28x1fbpA4tYTOWBkPefTDQnb8WSGXlc88kI=
 go.opentelemetry.io/otel/metric v1.24.0/go.mod h1:VYhLe1rFfxuTXLgj4CBiyz+9WYBA8pNGJgDcSFRKBco=
+go.opentelemetry.io/otel/sdk v1.21.0/go.mod h1:Nna6Yv7PWTdgJHVRD9hIYywQBRx7pbox6nwBnZIxl/E=
 go.opentelemetry.io/otel/sdk v1.24.0 h1:YMPPDNymmQN3ZgczicBY3B6sf9n62Dlj9pWD3ucgoDw=
 go.opentelemetry.io/otel/sdk v1.24.0/go.mod h1:KVrIYw6tEubO9E96HQpcmpTKDVn9gdv35HoYiQWGDFg=
 go.opentelemetry.io/otel/sdk/metric v1.24.0 h1:yyMQrPzF+k88/DbH7o4FMAs80puqd+9osbiBrJrz/w8=
 go.opentelemetry.io/otel/sdk/metric v1.24.0/go.mod h1:I6Y5FjH6rvEnTTAYQz3Mmv2kl6Ek5IIrmwTLqMrrOE0=
+go.opentelemetry.io/otel/trace v1.21.0/go.mod h1:LGbsEB0f9LGjN+OZaQQ26sohbOmiMR+BaslueVtS/qQ=
 go.opentelemetry.io/otel/trace v1.24.0 h1:CsKnnL4dUAr/0llH9FKuc698G04IrpWV0MQA/Y1YELI=
 go.opentelemetry.io/otel/trace v1.24.0/go.mod h1:HPc3Xr/cOApsBI154IU0OI0HJexz+aw5uPdbs3UCjNU=
 go.opentelemetry.io/proto/otlp v1.1.0 h1:2Di21piLrCqJ3U3eXGCTPHE9R8Nh+0uglSnOyxikMeI=
@@ -804,6 +816,7 @@ golang.org/x/sys v0.4.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.14.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.17.0 h1:25cE3gD+tdBA7lp7QfhuV+rJiE9YXTcS3VG1SqssI/Y=
 golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=

pkg/go-nfs/nfs_ongetattr.go

@@ -27,7 +27,7 @@ func onGetAttr(ctx context.Context, w *response, userHandle Handler) error {
 			return &NFSStatusError{NFSStatusNoEnt, err}
 		}
 		if errors.Is(err, context.DeadlineExceeded) {
-			return &NFSStatusError{NFSStatusJukebox, err}
+			return &NFSStatusError{timeoutStatus, err}
 		}
 		return &NFSStatusError{NFSStatusIO, err}
 	}

pkg/go-nfs/nfs_onread.go

@@ -48,7 +48,7 @@ func onRead(ctx context.Context, w *response, userHandle Handler) error {
 			return &NFSStatusError{NFSStatusNoEnt, err}
 		}
 		if errors.Is(err, context.DeadlineExceeded) {
-			return &NFSStatusError{NFSStatusJukebox, err}
+			return &NFSStatusError{timeoutStatus, err}
 		}
 		return &NFSStatusError{NFSStatusAccess, err}
 	}

pkg/go-nfs/nfs_onreaddir.go

@@ -160,7 +160,7 @@ func getDirListingWithVerifier(ctx context.Context, userHandle Handler, fsHandle
 			return nil, 0, &NFSStatusError{NFSStatusAccess, err}
 		}
 		if errors.Is(err, context.DeadlineExceeded) {
-			return nil, 0, &NFSStatusError{NFSStatusJukebox, err}
+			return nil, 0, &NFSStatusError{timeoutStatus, err}
 		}
 		return nil, 0, &NFSStatusError{NFSStatusIO, err}
 	}

pkg/go-nfs/nfs_onreadlink.go

@@ -31,7 +31,7 @@ func onReadLink(ctx context.Context, w *response, userHandle Handler) error {
 			return &NFSStatusError{NFSStatusNoEnt, err}
 		}
 		if errors.Is(err, context.DeadlineExceeded) {
-			return &NFSStatusError{NFSStatusJukebox, err}
+			return &NFSStatusError{timeoutStatus, err}
 		}
 
 		return &NFSStatusError{NFSStatusAccess, err}

pkg/go-nfs/nfs_onremove.go

@@ -39,7 +39,7 @@ func onRemove(ctx context.Context, w *response, userHandle Handler) error {
 			return &NFSStatusError{NFSStatusAccess, err}
 		}
 		if errors.Is(err, context.DeadlineExceeded) {
-			return &NFSStatusError{NFSStatusJukebox, err}
+			return &NFSStatusError{timeoutStatus, err}
 		}
 		return &NFSStatusError{NFSStatusIO, err}
 	}
@@ -60,7 +60,7 @@ func onRemove(ctx context.Context, w *response, userHandle Handler) error {
 			return &NFSStatusError{NFSStatusAccess, err}
 		}
 		if errors.Is(err, context.DeadlineExceeded) {
-			return &NFSStatusError{NFSStatusJukebox, err}
+			return &NFSStatusError{timeoutStatus, err}
 		}
 		return &NFSStatusError{NFSStatusIO, err}
 	}

pkg/go-nfs/nfs_onrename.go

@@ -53,7 +53,7 @@ func onRename(ctx context.Context, w *response, userHandle Handler) error {
 			return &NFSStatusError{NFSStatusNoEnt, err}
 		}
 		if errors.Is(err, context.DeadlineExceeded) {
-			return &NFSStatusError{NFSStatusJukebox, err}
+			return &NFSStatusError{timeoutStatus, err}
 		}
 		return &NFSStatusError{NFSStatusIO, err}
 	}
@@ -69,7 +69,7 @@ func onRename(ctx context.Context, w *response, userHandle Handler) error {
 			return &NFSStatusError{NFSStatusNoEnt, err}
 		}
 		if errors.Is(err, context.DeadlineExceeded) {
-			return &NFSStatusError{NFSStatusJukebox, err}
+			return &NFSStatusError{timeoutStatus, err}
 		}
 		return &NFSStatusError{NFSStatusIO, err}
 	}
@@ -92,7 +92,7 @@ func onRename(ctx context.Context, w *response, userHandle Handler) error {
 			return &NFSStatusError{NFSStatusAccess, err}
 		}
 		if errors.Is(err, context.DeadlineExceeded) {
-			return &NFSStatusError{NFSStatusJukebox, err}
+			return &NFSStatusError{timeoutStatus, err}
 		}
 		return &NFSStatusError{NFSStatusIO, err}
 	}

pkg/go-nfs/nfs_onsetattr.go

@@ -33,7 +33,7 @@ func onSetAttr(ctx context.Context, w *response, userHandle Handler) error {
 			return &NFSStatusError{NFSStatusNoEnt, err}
 		}
 		if errors.Is(err, context.DeadlineExceeded) {
-			return &NFSStatusError{NFSStatusJukebox, err}
+			return &NFSStatusError{timeoutStatus, err}
 		}
 		return &NFSStatusError{NFSStatusAccess, err}
 	}

pkg/go-nfs/nfs_onwrite.go

@@ -58,7 +58,7 @@ func onWrite(ctx context.Context, w *response, userHandle Handler) error {
 			return &NFSStatusError{NFSStatusNoEnt, err}
 		}
 		if errors.Is(err, context.DeadlineExceeded) {
-			return &NFSStatusError{NFSStatusJukebox, err}
+			return &NFSStatusError{timeoutStatus, err}
 		}
 		return &NFSStatusError{NFSStatusAccess, err}
 	}

pkg/go-nfs/nfsinterface.go

@@ -80,6 +80,8 @@ func (n NFSProcedure) String() string {
 	}
 }
 
+const timeoutStatus = NFSStatusIO
+
 // NFSStatus (nfsstat3) is a result code for nfs rpc calls
 type NFSStatus uint32
 

pkg/rlog/rlog.go

@@ -34,10 +34,6 @@ func ComponentLog(name string) *slog.Logger {
 	return defaultLogger.With(slog.String("component", name))
 }
 
-func ServiceLog(name string) *slog.Logger {
-	return ComponentLog("service/" + name)
-}
-
 func FunctionLog(log *slog.Logger, name string) *slog.Logger {
 	return log.With(slog.String("function", name))
 }

src/host/vfs/log.go

@@ -2,6 +2,7 @@ package vfs
 
 import (
 	"context"
+	"errors"
 	"io/fs"
 	"log/slog"
 	"reflect"
@@ -20,11 +21,15 @@ type LogFS struct {
 	readTimeout time.Duration
 }
 
+func isLoggableError(err error) bool {
+	return err != nil && !errors.Is(err, fs.ErrNotExist)
+}
+
 var _ Filesystem = (*LogFS)(nil)
 
-func WrapLogFS(fs Filesystem) *LogFS {
+func WrapLogFS(vfs Filesystem) *LogFS {
 	return &LogFS{
-		fs:          fs,
+		fs:          vfs,
 		log:         rlog.ComponentLog("fs"),
 		timeout:     time.Minute * 3,
 		readTimeout: time.Minute,
@@ -96,7 +101,7 @@ func (fs *LogFS) Open(ctx context.Context, filename string) (file File, err erro
 	}()
 
 	file, err = fs.fs.Open(ctx, filename)
-	if err != nil {
+	if isLoggableError(err) {
 		fs.log.With("filename", filename).Error("Failed to open file")
 	}
 	file = WrapLogFile(file, filename, fs.log, fs.readTimeout)
@@ -118,18 +123,18 @@ func (fs *LogFS) ReadDir(ctx context.Context, path string) (entries []fs.DirEntr
 	}()
 
 	entries, err = fs.fs.ReadDir(ctx, path)
-	if err != nil {
+	if isLoggableError(err) {
 		fs.log.ErrorContext(ctx, "Failed to read dir", "path", path, "error", err.Error(), "fs-type", reflect.TypeOf(fs.fs).Name())
 	}
 	return entries, err
 }
 
 // Stat implements Filesystem.
-func (fs *LogFS) Stat(ctx context.Context, filename string) (info fs.FileInfo, err error) {
-	ctx, cancel := context.WithTimeout(ctx, fs.timeout)
+func (lfs *LogFS) Stat(ctx context.Context, filename string) (info fs.FileInfo, err error) {
+	ctx, cancel := context.WithTimeout(ctx, lfs.timeout)
 	defer cancel()
 	ctx, span := tracer.Start(ctx, "Stat",
-		fs.traceAttrs(attribute.String("filename", filename)),
+		lfs.traceAttrs(attribute.String("filename", filename)),
 	)
 	defer func() {
 		if err != nil {
@@ -138,9 +143,9 @@ func (fs *LogFS) Stat(ctx context.Context, filename string) (info fs.FileInfo, e
 		span.End()
 	}()
 
-	info, err = fs.fs.Stat(ctx, filename)
-	if err != nil {
-		fs.log.Error("Failed to stat", "filename", filename, "error", err)
+	info, err = lfs.fs.Stat(ctx, filename)
+	if isLoggableError(err) {
+		lfs.log.Error("Failed to stat", "filename", filename, "error", err)
 	}
 	return info, err
 }
@@ -160,7 +165,7 @@ func (fs *LogFS) Unlink(ctx context.Context, filename string) (err error) {
 	}()
 
 	err = fs.fs.Unlink(ctx, filename)
-	if err != nil {
+	if isLoggableError(err) {
 		fs.log.Error("Failed to stat", "filename", filename, "error", err)
 	}
 	return err
@@ -210,7 +215,7 @@ func (f *LogFile) Close(ctx context.Context) (err error) {
 	}()
 
 	err = f.f.Close(ctx)
-	if err != nil {
+	if isLoggableError(err) {
 		f.log.ErrorContext(ctx, "Failed to close", "error", err)
 	}
 	return err
@@ -240,7 +245,7 @@ func (f *LogFile) Read(ctx context.Context, p []byte) (n int, err error) {
 	}()
 
 	n, err = f.f.Read(ctx, p)
-	if err != nil {
+	if isLoggableError(err) {
 		f.log.Error("Failed to read", "error", err)
 	}
 	return n, err
@@ -265,7 +270,7 @@ func (f *LogFile) ReadAt(ctx context.Context, p []byte, off int64) (n int, err e
 	}()
 
 	n, err = f.f.ReadAt(ctx, p, off)
-	if err != nil {
+	if isLoggableError(err) {
 		f.log.Error("Failed to read", "offset", off, "error", err)
 	}
 	return n, err
@@ -279,8 +284,8 @@ func (f *LogFile) Size() int64 {
 // Stat implements File.
 func (f *LogFile) Info() (fs.FileInfo, error) {
 	info, err := f.f.Info()
-	if err != nil {
-		f.log.Error("Failed to read", "error", err)
+	if isLoggableError(err) {
+		f.log.Error("Failed to info", "error", err)
 	}
 	return info, err
 }

src/host/vfs/resolver.go

@@ -119,17 +119,26 @@ func (r *ResolverFS) ReadDir(ctx context.Context, dir string) ([]fs.DirEntry, er
 				return nil, err
 			}
 			defer file.Close(ctx)
-			nestedfs, err := r.resolver.nestedFs(ctx, filepath, file)
-			if err != nil {
-				if errors.Is(err, context.DeadlineExceeded) {
-					r.log.ErrorContext(ctx, "creating fs timed out", "filename", e.Name())
-					continue
-				}
 
+			err = func() error {
+				factoryCtx, cancel := subTimeout(ctx)
+				defer cancel()
+				nestedfs, err := r.resolver.nestedFs(factoryCtx, filepath, file)
+				if err != nil {
+					if errors.Is(err, context.DeadlineExceeded) {
+						r.log.ErrorContext(ctx, "creating fs timed out", "filename", e.Name())
+						return nil
+					}
+
+					return err
+				}
+				out = append(out, nestedfs)
+				return nil
+			}()
+			if err != nil {
 				return nil, err
 			}
 
-			out = append(out, nestedfs)
 		} else {
 			out = append(out, e)
 		}

src/host/vfs/torrent.go

@@ -2,6 +2,7 @@ package vfs
 
 import (
 	"context"
+	"fmt"
 	"io"
 	"io/fs"
 	"path"
@@ -413,7 +414,14 @@ func openTorrentFile(ctx context.Context, name string, file *torrent.File) (*tor
 
 	r := file.NewReader()
 	r.SetReadahead(1024 * 1024 * 16) // TODO configurable
-	// r.SetResponsive()
+	_, err := r.ReadContext(ctx, make([]byte, 128))
+	if err != nil && err != io.EOF {
+		return nil, fmt.Errorf("failed initial file read: %w", err)
+	}
+	_, err = r.Seek(0, io.SeekStart)
+	if err != nil {
+		return nil, fmt.Errorf("failed seeking to start, after initial read: %w", err)
+	}
 
 	return &torrentFile{
 		name: name,

src/host/vfs/utils.go

@@ -1,9 +1,11 @@
 package vfs
 
 import (
+	"context"
 	"path"
 	"strings"
 	"sync"
+	"time"
 )
 
 const Separator = "/"
@@ -58,3 +60,12 @@ func OnceValueWOErr[T any](f func() (T, error)) func() (T, error) {
 		return r1, err
 	}
 }
+
+func subTimeout(ctx context.Context) (context.Context, context.CancelFunc) {
+	if deadline, ok := ctx.Deadline(); ok {
+		timeout := time.Until(deadline) / 2
+		return context.WithTimeout(ctx, timeout)
+	}
+
+	return ctx, func() {}
+}

src/telemetry/setup.go

@@ -2,14 +2,18 @@ package telemetry
 
 import (
 	"context"
+	"fmt"
 	"log/slog"
 	"os"
+	"runtime"
 
 	"git.kmsign.ru/royalcat/tstor/pkg/rlog"
 	"github.com/agoda-com/opentelemetry-go/otelslog"
 	"github.com/agoda-com/opentelemetry-logs-go/exporters/otlp/otlplogs"
 	"github.com/agoda-com/opentelemetry-logs-go/exporters/otlp/otlplogs/otlplogshttp"
 	logsdk "github.com/agoda-com/opentelemetry-logs-go/sdk/logs"
+	otelpyroscope "github.com/grafana/otel-profiling-go"
+	"github.com/grafana/pyroscope-go"
 	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp"
 	"go.opentelemetry.io/otel/exporters/prometheus"
@@ -99,7 +103,8 @@ func Setup(ctx context.Context, endpoint string) (*Client, error) {
 		trace.WithBatcher(traceExporter),
 		trace.WithResource(r),
 	)
-	otel.SetTracerProvider(client.tracerProvider)
+	// otel.SetTracerProvider(client.tracerProvider)
+	otel.SetTracerProvider(otelpyroscope.NewTracerProvider(client.tracerProvider))
 	log.Info("otel tracing provider initialized")
 
 	logExporter, err := otlplogs.NewExporter(ctx,
@@ -122,5 +127,55 @@ func Setup(ctx context.Context, endpoint string) (*Client, error) {
 	)
 	client.log = slog.Default()
 
+	runtime.SetMutexProfileFraction(5)
+	runtime.SetBlockProfileRate(5)
+	_, err = pyroscope.Start(pyroscope.Config{
+		ApplicationName: appName,
+		// replace this with the address of pyroscope server
+		ServerAddress: "https://pyroscope.kmsign.ru",
+		// you can disable logging by setting this to nil
+		Logger: &pyroscopeLogger{
+			log: rlog.ComponentLog("metrics.pyroscope"),
+		},
+		ProfileTypes: []pyroscope.ProfileType{
+			// these profile types are enabled by default:
+			pyroscope.ProfileCPU,
+			pyroscope.ProfileAllocObjects,
+			pyroscope.ProfileAllocSpace,
+			pyroscope.ProfileInuseObjects,
+			pyroscope.ProfileInuseSpace,
+			// these profile types are optional:
+			// pyroscope.ProfileGoroutines,
+			// pyroscope.ProfileMutexCount,
+			// pyroscope.ProfileMutexDuration,
+			// pyroscope.ProfileBlockCount,
+			// pyroscope.ProfileBlockDuration,
+		},
+	})
+	if err != nil {
+		return client, nil
+	}
+
 	return client, nil
 }
+
+type pyroscopeLogger struct {
+	log *slog.Logger
+}
+
+var _ pyroscope.Logger = (*pyroscopeLogger)(nil)
+
+// Debugf implements pyroscope.Logger.
+func (p *pyroscopeLogger) Debugf(msg string, args ...any) {
+	p.log.Debug(fmt.Sprintf(msg, args...))
+}
+
+// Errorf implements pyroscope.Logger.
+func (p *pyroscopeLogger) Errorf(msg string, args ...any) {
+	p.log.Error(fmt.Sprintf(msg, args...))
+}
+
+// Infof implements pyroscope.Logger.
+func (p *pyroscopeLogger) Infof(msg string, args ...any) {
+	p.log.Info(fmt.Sprintf(msg, args...))
+}