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cmd/stcrashreceiver: Ignore patterns, improve metrics

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This commit is contained in:
Jakob Borg 2024-06-03 07:16:56 +02:00
parent 18a58a2ddc
commit 2f281799c1
6 changed files with 294 additions and 169 deletions
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76
cmd/stcrashreceiver/main.go
View File

@ -21,11 +21,14 @@ import (
"net/http"
"os"
"path/filepath"
"regexp"
"strings"
"github.com/alecthomas/kong"
raven "github.com/getsentry/raven-go"
"github.com/prometheus/client_golang/prometheus/promhttp"
_ "github.com/syncthing/syncthing/lib/automaxprocs"
"github.com/syncthing/syncthing/lib/build"
"github.com/syncthing/syncthing/lib/sha256"
"github.com/syncthing/syncthing/lib/ur"
)
@ -40,6 +43,8 @@ type cli struct {
MaxDiskSizeMB int64 `help:"Maximum disk space to use for reports" default:"1024" env:"MAX_DISK_SIZE_MB"`
SentryQueue int `help:"Maximum number of reports to queue for sending to Sentry" default:"64" env:"SENTRY_QUEUE"`
DiskQueue int `help:"Maximum number of reports to queue for writing to disk" default:"64" env:"DISK_QUEUE"`
MetricsListen string `help:"HTTP listen address for metrics" default:":8081" env:"METRICS_LISTEN_ADDRESS"`
IngorePatterns string `help:"File containing ignore patterns (regexp)" env:"IGNORE_PATTERNS" type:"existingfile"`
}
func main() {
@ -62,19 +67,38 @@ func main() {
}
go ss.Serve(context.Background())
var ip *ignorePatterns
if params.IngorePatterns != "" {
var err error
ip, err = loadIgnorePatterns(params.IngorePatterns)
if err != nil {
log.Fatalf("Failed to load ignore patterns: %v", err)
}
}
cr := &crashReceiver{
store: ds,
sentry: ss,
ignore: ip,
}
mux.Handle("/", cr)
mux.HandleFunc("/ping", func(w http.ResponseWriter, req *http.Request) {
w.Write([]byte("OK"))
})
mux.Handle("/metrics", promhttp.Handler())
if params.MetricsListen != "" {
mmux := http.NewServeMux()
mmux.Handle("/metrics", promhttp.Handler())
go func() {
if err := http.ListenAndServe(params.MetricsListen, mmux); err != nil {
log.Fatalln("HTTP serve metrics:", err)
}
}()
}
if params.DSN != "" {
mux.HandleFunc("/newcrash/failure", handleFailureFn(params.DSN, filepath.Join(params.Dir, "failure_reports")))
mux.HandleFunc("/newcrash/failure", handleFailureFn(params.DSN, filepath.Join(params.Dir, "failure_reports"), ip))
}
log.SetOutput(os.Stdout)
@ -83,7 +107,7 @@ func main() {
}
}
func handleFailureFn(dsn, failureDir string) func(w http.ResponseWriter, req *http.Request) {
func handleFailureFn(dsn, failureDir string, ignore *ignorePatterns) func(w http.ResponseWriter, req *http.Request) {
return func(w http.ResponseWriter, req *http.Request) {
result := "failure"
defer func() {
@ -98,6 +122,11 @@ func handleFailureFn(dsn, failureDir string) func(w http.ResponseWriter, req *ht
return
}
if ignore.match(bs) {
result = "ignored"
return
}
var reports []ur.FailureReport
err = json.Unmarshal(bs, &reports)
if err != nil {
@ -110,7 +139,7 @@ func handleFailureFn(dsn, failureDir string) func(w http.ResponseWriter, req *ht
return
}
version, err := parseVersion(reports[0].Version)
version, err := build.ParseVersion(reports[0].Version)
if err != nil {
http.Error(w, err.Error(), 400)
return
@ -158,3 +187,42 @@ func saveFailureWithGoroutines(data ur.FailureData, failureDir string) (string,
}
return reportServer + path, nil
}
type ignorePatterns struct {
patterns []*regexp.Regexp
}
func loadIgnorePatterns(path string) (*ignorePatterns, error) {
bs, err := os.ReadFile(path)
if err != nil {
return nil, err
}
var patterns []*regexp.Regexp
for _, line := range strings.Split(string(bs), "\n") {
line = strings.TrimSpace(line)
if line == "" {
continue
}
re, err := regexp.Compile(line)
if err != nil {
return nil, err
}
patterns = append(patterns, re)
}
log.Printf("Loaded %d ignore patterns", len(patterns))
return &ignorePatterns{patterns: patterns}, nil
}
func (i *ignorePatterns) match(report []byte) bool {
if i == nil {
return false
}
for _, re := range i.patterns {
if re.Match(report) {
return true
}
}
return false
}

117
cmd/stcrashreceiver/sentry.go
View File

@ -18,6 +18,7 @@ import (
raven "github.com/getsentry/raven-go"
"github.com/maruel/panicparse/v2/stack"
"github.com/syncthing/syncthing/lib/build"
)
const reportServer = "https://crash.syncthing.net/report/"
@ -105,7 +106,7 @@ func parseCrashReport(path string, report []byte) (*raven.Packet, error) {
return nil, errors.New("no first line")
}
version, err := parseVersion(string(parts[0]))
version, err := build.ParseVersion(string(parts[0]))
if err != nil {
return nil, err
}
@ -143,12 +144,12 @@ func parseCrashReport(path string, report []byte) (*raven.Packet, error) {
}
// Lock the source code loader to the version we are processing here.
if version.commit != "" {
if version.Commit != "" {
// We have a commit hash, so we know exactly which source to use
loader.LockWithVersion(version.commit)
} else if strings.HasPrefix(version.tag, "v") {
loader.LockWithVersion(version.Commit)
} else if strings.HasPrefix(version.Tag, "v") {
// Lets hope the tag is close enough
loader.LockWithVersion(version.tag)
loader.LockWithVersion(version.Tag)
} else {
// Last resort
loader.LockWithVersion("main")
@ -215,106 +216,26 @@ func crashReportFingerprint(message string) []string {
return []string{"{{ default }}", message}
}
// syncthing v1.1.4-rc.1+30-g6aaae618-dirty-crashrep "Erbium Earthworm" (go1.12.5 darwin-amd64) jb@kvin.kastelo.net 2019-05-23 16:08:14 UTC [foo, bar]
// or, somewhere along the way the "+" in the version tag disappeared:
// syncthing v1.23.7-dev.26.gdf7b56ae.dirty-stversionextra "Fermium Flea" (go1.20.5 darwin-arm64) jb@ok.kastelo.net 2023-07-12 06:55:26 UTC [Some Wrapper, purego, stnoupgrade]
var (
longVersionRE = regexp.MustCompile(`syncthing\s+(v[^\s]+)\s+"([^"]+)"\s\(([^\s]+)\s+([^-]+)-([^)]+)\)\s+([^\s]+)[^\[]*(?:\[(.+)\])?$`)
gitExtraRE = regexp.MustCompile(`\.\d+\.g[0-9a-f]+`) // ".1.g6aaae618"
gitExtraSepRE = regexp.MustCompile(`[.-]`) // dot or dash
)
type version struct {
version string // "v1.1.4-rc.1+30-g6aaae618-dirty-crashrep"
tag string // "v1.1.4-rc.1"
commit string // "6aaae618", blank when absent
codename string // "Erbium Earthworm"
runtime string // "go1.12.5"
goos string // "darwin"
goarch string // "amd64"
builder string // "jb@kvin.kastelo.net"
extra []string // "foo", "bar"
}
func (v version) environment() string {
if v.commit != "" {
return "Development"
}
if strings.Contains(v.tag, "-rc.") {
return "Candidate"
}
if strings.Contains(v.tag, "-") {
return "Beta"
}
return "Stable"
}
func parseVersion(line string) (version, error) {
m := longVersionRE.FindStringSubmatch(line)
if len(m) == 0 {
return version{}, errors.New("unintelligeble version string")
}
v := version{
version: m[1],
codename: m[2],
runtime: m[3],
goos: m[4],
goarch: m[5],
builder: m[6],
}
// Split the version tag into tag and commit. This is old style
// v1.2.3-something.4+11-g12345678 or newer with just dots
// v1.2.3-something.4.11.g12345678 or v1.2.3-dev.11.g12345678.
parts := []string{v.version}
if strings.Contains(v.version, "+") {
parts = strings.Split(v.version, "+")
} else {
idxs := gitExtraRE.FindStringIndex(v.version)
if len(idxs) > 0 {
parts = []string{v.version[:idxs[0]], v.version[idxs[0]+1:]}
}
}
v.tag = parts[0]
if len(parts) > 1 {
fields := gitExtraSepRE.Split(parts[1], -1)
if len(fields) >= 2 && strings.HasPrefix(fields[1], "g") {
v.commit = fields[1][1:]
}
}
if len(m) >= 8 && m[7] != "" {
tags := strings.Split(m[7], ",")
for i := range tags {
tags[i] = strings.TrimSpace(tags[i])
}
v.extra = tags
}
return v, nil
}
func packet(version version, reportType string) *raven.Packet {
func packet(version build.VersionParts, reportType string) *raven.Packet {
pkt := &raven.Packet{
Platform: "go",
Release: version.tag,
Environment: version.environment(),
Release: version.Tag,
Environment: version.Environment(),
Tags: raven.Tags{
raven.Tag{Key: "version", Value: version.version},
raven.Tag{Key: "tag", Value: version.tag},
raven.Tag{Key: "codename", Value: version.codename},
raven.Tag{Key: "runtime", Value: version.runtime},
raven.Tag{Key: "goos", Value: version.goos},
raven.Tag{Key: "goarch", Value: version.goarch},
raven.Tag{Key: "builder", Value: version.builder},
raven.Tag{Key: "version", Value: version.Version},
raven.Tag{Key: "tag", Value: version.Tag},
raven.Tag{Key: "codename", Value: version.Codename},
raven.Tag{Key: "runtime", Value: version.Runtime},
raven.Tag{Key: "goos", Value: version.GOOS},
raven.Tag{Key: "goarch", Value: version.GOARCH},
raven.Tag{Key: "builder", Value: version.Builder},
raven.Tag{Key: "report_type", Value: reportType},
},
}
if version.commit != "" {
pkt.Tags = append(pkt.Tags, raven.Tag{Key: "commit", Value: version.commit})
if version.Commit != "" {
pkt.Tags = append(pkt.Tags, raven.Tag{Key: "commit", Value: version.Commit})
}
for _, tag := range version.extra {
for _, tag := range version.Extra {
pkt.Tags = append(pkt.Tags, raven.Tag{Key: tag, Value: "1"})
}
return pkt

60
cmd/stcrashreceiver/sentry_test.go
View File

@ -12,66 +12,6 @@ import (
"testing"
)
func TestParseVersion(t *testing.T) {
cases := []struct {
longVersion string
parsed version
}{
{
longVersion: `syncthing v1.1.4-rc.1+30-g6aaae618-dirty-crashrep "Erbium Earthworm" (go1.12.5 darwin-amd64) jb@kvin.kastelo.net 2019-05-23 16:08:14 UTC`,
parsed: version{
version: "v1.1.4-rc.1+30-g6aaae618-dirty-crashrep",
tag: "v1.1.4-rc.1",
commit: "6aaae618",
codename: "Erbium Earthworm",
runtime: "go1.12.5",
goos: "darwin",
goarch: "amd64",
builder: "jb@kvin.kastelo.net",
},
},
{
longVersion: `syncthing v1.1.4-rc.1+30-g6aaae618-dirty-crashrep "Erbium Earthworm" (go1.12.5 darwin-amd64) jb@kvin.kastelo.net 2019-05-23 16:08:14 UTC [foo, bar]`,
parsed: version{
version: "v1.1.4-rc.1+30-g6aaae618-dirty-crashrep",
tag: "v1.1.4-rc.1",
commit: "6aaae618",
codename: "Erbium Earthworm",
runtime: "go1.12.5",
goos: "darwin",
goarch: "amd64",
builder: "jb@kvin.kastelo.net",
extra: []string{"foo", "bar"},
},
},
{
longVersion: `syncthing v1.23.7-dev.26.gdf7b56ae-stversionextra "Fermium Flea" (go1.20.5 darwin-arm64) jb@ok.kastelo.net 2023-07-12 06:55:26 UTC [Some Wrapper, purego, stnoupgrade]`,
parsed: version{
version: "v1.23.7-dev.26.gdf7b56ae-stversionextra",
tag: "v1.23.7-dev",
commit: "df7b56ae",
codename: "Fermium Flea",
runtime: "go1.20.5",
goos: "darwin",
goarch: "arm64",
builder: "jb@ok.kastelo.net",
extra: []string{"Some Wrapper", "purego", "stnoupgrade"},
},
},
}
for _, tc := range cases {
v, err := parseVersion(tc.longVersion)
if err != nil {
t.Errorf("%s\nerror: %v\n", tc.longVersion, err)
continue
}
if fmt.Sprint(v) != fmt.Sprint(tc.parsed) {
t.Errorf("%s\nA: %v\nE: %v\n", tc.longVersion, v, tc.parsed)
}
}
}
func TestParseReport(t *testing.T) {
bs, err := os.ReadFile("_testdata/panic.log")
if err != nil {

31
cmd/stcrashreceiver/stcrashreceiver.go
View File

@ -12,11 +12,16 @@ import (
"net/http"
"path"
"strings"
"sync"
)
type crashReceiver struct {
store *diskStore
sentry *sentryService
ignore *ignorePatterns
ignoredMut sync.RWMutex
ignored map[string]struct{}
}
func (r *crashReceiver) ServeHTTP(w http.ResponseWriter, req *http.Request) {
@ -64,6 +69,12 @@ func (r *crashReceiver) serveGet(reportID string, w http.ResponseWriter, _ *http
// serveHead responds to HEAD requests by checking if the named report
// already exists in the system.
func (r *crashReceiver) serveHead(reportID string, w http.ResponseWriter, _ *http.Request) {
r.ignoredMut.RLock()
_, ignored := r.ignored[reportID]
r.ignoredMut.RUnlock()
if ignored {
return // found
}
if !r.store.Exists(reportID) {
http.Error(w, "Not found", http.StatusNotFound)
}
@ -76,6 +87,15 @@ func (r *crashReceiver) servePut(reportID string, w http.ResponseWriter, req *ht
metricCrashReportsTotal.WithLabelValues(result).Inc()
}()
r.ignoredMut.RLock()
_, ignored := r.ignored[reportID]
r.ignoredMut.RUnlock()
if ignored {
result = "ignored_cached"
io.Copy(io.Discard, req.Body)
return // found
}
// Read at most maxRequestSize of report data.
log.Println("Receiving report", reportID)
lr := io.LimitReader(req.Body, maxRequestSize)
@ -86,6 +106,17 @@ func (r *crashReceiver) servePut(reportID string, w http.ResponseWriter, req *ht
return
}
if r.ignore.match(bs) {
r.ignoredMut.Lock()
if r.ignored == nil {
r.ignored = make(map[string]struct{})
}
r.ignored[reportID] = struct{}{}
r.ignoredMut.Unlock()
result = "ignored"
return
}
result = "success"
// Store the report

93
lib/build/parse.go Normal file
View File

@ -0,0 +1,93 @@
// Copyright (C) 2019 The Syncthing Authors.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at https://mozilla.org/MPL/2.0/.
package build
import (
"errors"
"regexp"
"strings"
)
// syncthing v1.1.4-rc.1+30-g6aaae618-dirty-crashrep "Erbium Earthworm" (go1.12.5 darwin-amd64) jb@kvin.kastelo.net 2019-05-23 16:08:14 UTC [foo, bar]
// or, somewhere along the way the "+" in the version tag disappeared:
// syncthing v1.23.7-dev.26.gdf7b56ae.dirty-stversionextra "Fermium Flea" (go1.20.5 darwin-arm64) jb@ok.kastelo.net 2023-07-12 06:55:26 UTC [Some Wrapper, purego, stnoupgrade]
var (
longVersionRE = regexp.MustCompile(`syncthing\s+(v[^\s]+)\s+"([^"]+)"\s\(([^\s]+)\s+([^-]+)-([^)]+)\)\s+([^\s]+)[^\[]*(?:\[(.+)\])?$`)
gitExtraRE = regexp.MustCompile(`\.\d+\.g[0-9a-f]+`) // ".1.g6aaae618"
gitExtraSepRE = regexp.MustCompile(`[.-]`) // dot or dash
)
type VersionParts struct {
Version string // "v1.1.4-rc.1+30-g6aaae618-dirty-crashrep"
Tag string // "v1.1.4-rc.1"
Commit string // "6aaae618", blank when absent
Codename string // "Erbium Earthworm"
Runtime string // "go1.12.5"
GOOS string // "darwin"
GOARCH string // "amd64"
Builder string // "jb@kvin.kastelo.net"
Extra []string // "foo", "bar"
}
func (v VersionParts) Environment() string {
if v.Commit != "" {
return "Development"
}
if strings.Contains(v.Tag, "-rc.") {
return "Candidate"
}
if strings.Contains(v.Tag, "-") {
return "Beta"
}
return "Stable"
}
func ParseVersion(line string) (VersionParts, error) {
m := longVersionRE.FindStringSubmatch(line)
if len(m) == 0 {
return VersionParts{}, errors.New("unintelligeble version string")
}
v := VersionParts{
Version: m[1],
Codename: m[2],
Runtime: m[3],
GOOS: m[4],
GOARCH: m[5],
Builder: m[6],
}
// Split the version tag into tag and commit. This is old style
// v1.2.3-something.4+11-g12345678 or newer with just dots
// v1.2.3-something.4.11.g12345678 or v1.2.3-dev.11.g12345678.
parts := []string{v.Version}
if strings.Contains(v.Version, "+") {
parts = strings.Split(v.Version, "+")
} else {
idxs := gitExtraRE.FindStringIndex(v.Version)
if len(idxs) > 0 {
parts = []string{v.Version[:idxs[0]], v.Version[idxs[0]+1:]}
}
}
v.Tag = parts[0]
if len(parts) > 1 {
fields := gitExtraSepRE.Split(parts[1], -1)
if len(fields) >= 2 && strings.HasPrefix(fields[1], "g") {
v.Commit = fields[1][1:]
}
}
if len(m) >= 8 && m[7] != "" {
tags := strings.Split(m[7], ",")
for i := range tags {
tags[i] = strings.TrimSpace(tags[i])
}
v.Extra = tags
}
return v, nil
}

72
lib/build/parse_test.go Normal file
View File

@ -0,0 +1,72 @@
// Copyright (C) 2019 The Syncthing Authors.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at https://mozilla.org/MPL/2.0/.
package build
import (
"fmt"
"testing"
)
func TestParseVersion(t *testing.T) {
cases := []struct {
longVersion string
parsed VersionParts
}{
{
longVersion: `syncthing v1.1.4-rc.1+30-g6aaae618-dirty-crashrep "Erbium Earthworm" (go1.12.5 darwin-amd64) jb@kvin.kastelo.net 2019-05-23 16:08:14 UTC`,
parsed: VersionParts{
Version: "v1.1.4-rc.1+30-g6aaae618-dirty-crashrep",
Tag: "v1.1.4-rc.1",
Commit: "6aaae618",
Codename: "Erbium Earthworm",
Runtime: "go1.12.5",
GOOS: "darwin",
GOARCH: "amd64",
Builder: "jb@kvin.kastelo.net",
},
},
{
longVersion: `syncthing v1.1.4-rc.1+30-g6aaae618-dirty-crashrep "Erbium Earthworm" (go1.12.5 darwin-amd64) jb@kvin.kastelo.net 2019-05-23 16:08:14 UTC [foo, bar]`,
parsed: VersionParts{
Version: "v1.1.4-rc.1+30-g6aaae618-dirty-crashrep",
Tag: "v1.1.4-rc.1",
Commit: "6aaae618",
Codename: "Erbium Earthworm",
Runtime: "go1.12.5",
GOOS: "darwin",
GOARCH: "amd64",
Builder: "jb@kvin.kastelo.net",
Extra: []string{"foo", "bar"},
},
},
{
longVersion: `syncthing v1.23.7-dev.26.gdf7b56ae-stversionextra "Fermium Flea" (go1.20.5 darwin-arm64) jb@ok.kastelo.net 2023-07-12 06:55:26 UTC [Some Wrapper, purego, stnoupgrade]`,
parsed: VersionParts{
Version: "v1.23.7-dev.26.gdf7b56ae-stversionextra",
Tag: "v1.23.7-dev",
Commit: "df7b56ae",
Codename: "Fermium Flea",
Runtime: "go1.20.5",
GOOS: "darwin",
GOARCH: "arm64",
Builder: "jb@ok.kastelo.net",
Extra: []string{"Some Wrapper", "purego", "stnoupgrade"},
},
},
}
for _, tc := range cases {
v, err := ParseVersion(tc.longVersion)
if err != nil {
t.Errorf("%s\nerror: %v\n", tc.longVersion, err)
continue
}
if fmt.Sprint(v) != fmt.Sprint(tc.parsed) {
t.Errorf("%s\nA: %v\nE: %v\n", tc.longVersion, v, tc.parsed)
}
}
}