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https://github.com/go-gitea/gitea
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c88547ce71
Continues on from #19202. Following the addition of pprof labels we can now more easily understand the relationship between a goroutine and the requests that spawn them. This PR takes advantage of the labels and adds a few others, then provides a mechanism for the monitoring page to query the pprof goroutine profile. The binary profile that results from this profile is immediately piped in to the google library for parsing this and then stack traces are formed for the goroutines. If the goroutine is within a context or has been created from a goroutine within a process context it will acquire the process description labels for that process. The goroutines are mapped with there associate pids and any that do not have an associated pid are placed in a group at the bottom as unbound. In this way we should be able to more easily examine goroutines that have been stuck. A manager command `gitea manager processes` is also provided that can export the processes (with or without stacktraces) to the command line. Signed-off-by: Andrew Thornton <art27@cantab.net>
106 lines
2.8 KiB
Go
106 lines
2.8 KiB
Go
// Copyright 2020 The Gogs Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package log
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import (
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"fmt"
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"runtime"
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"strings"
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"time"
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)
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// MultiChannelledLogger is default logger in the Gitea application.
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// it can contain several providers and log message into all providers.
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type MultiChannelledLogger struct {
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LevelLoggerLogger
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*MultiChannelledLog
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bufferLength int64
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}
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// newLogger initializes and returns a new logger.
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func newLogger(name string, buffer int64) *MultiChannelledLogger {
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l := &MultiChannelledLogger{
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MultiChannelledLog: NewMultiChannelledLog(name, buffer),
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bufferLength: buffer,
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}
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l.LevelLogger = l
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return l
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}
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// SetLogger sets new logger instance with given logger provider and config.
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func (l *MultiChannelledLogger) SetLogger(name, provider, config string) error {
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eventLogger, err := NewChannelledLog(l.ctx, name, provider, config, l.bufferLength)
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if err != nil {
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return fmt.Errorf("Failed to create sublogger (%s): %v", name, err)
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}
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l.MultiChannelledLog.DelLogger(name)
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err = l.MultiChannelledLog.AddLogger(eventLogger)
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if err != nil {
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if IsErrDuplicateName(err) {
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return fmt.Errorf("Duplicate named sublogger %s %v", name, l.MultiChannelledLog.GetEventLoggerNames())
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}
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return fmt.Errorf("Failed to add sublogger (%s): %v", name, err)
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}
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return nil
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}
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// DelLogger deletes a sublogger from this logger.
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func (l *MultiChannelledLogger) DelLogger(name string) (bool, error) {
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return l.MultiChannelledLog.DelLogger(name), nil
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}
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// Log msg at the provided level with the provided caller defined by skip (0 being the function that calls this function)
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func (l *MultiChannelledLogger) Log(skip int, level Level, format string, v ...interface{}) error {
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if l.GetLevel() > level {
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return nil
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}
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caller := "?()"
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pc, filename, line, ok := runtime.Caller(skip + 1)
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if ok {
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// Get caller function name.
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fn := runtime.FuncForPC(pc)
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if fn != nil {
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caller = fn.Name() + "()"
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}
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}
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msg := format
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if len(v) > 0 {
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msg = ColorSprintf(format, v...)
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}
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labels := getGoroutineLabels()
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if labels != nil {
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pid, ok := labels["pid"]
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if ok {
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msg = "[" + ColorString(FgHiYellow) + pid + ColorString(Reset) + "] " + msg
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}
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}
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stack := ""
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if l.GetStacktraceLevel() <= level {
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stack = Stack(skip + 1)
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}
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return l.SendLog(level, caller, strings.TrimPrefix(filename, prefix), line, msg, stack)
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}
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// SendLog sends a log event at the provided level with the information given
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func (l *MultiChannelledLogger) SendLog(level Level, caller, filename string, line int, msg, stack string) error {
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if l.GetLevel() > level {
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return nil
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}
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event := &Event{
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level: level,
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caller: caller,
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filename: filename,
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line: line,
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msg: msg,
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time: time.Now(),
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stacktrace: stack,
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}
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l.LogEvent(event)
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return nil
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}
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