9472299308
This patch brings in the removal of debug logging altogether, instead we bring in the functionality of being able to trace the errors properly pointing back to the origination of the problem. To enable tracing you need to enable "MINIO_TRACE" set to "1" or "true" environment variable which would print back traces whenever there is an error which is unhandled or at the handler layer. By default this tracing is turned off and only user level logging is provided.
83 lines
2.2 KiB
Go
83 lines
2.2 KiB
Go
// +build !windows
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/*
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* Minio Cloud Storage, (C) 2015, 2016 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package main
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import (
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"fmt"
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"log/syslog"
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"github.com/Sirupsen/logrus"
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)
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type syslogLogger struct {
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Enable bool `json:"enable"`
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Addr string `json:"address"`
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Level string `json:"level"`
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}
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// syslogHook to send logs via syslog.
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type syslogHook struct {
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writer *syslog.Writer
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syslogNetwork string
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syslogRaddr string
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}
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// enableSyslogLogger - enable logger at raddr.
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func enableSyslogLogger(raddr string) {
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syslogHook, err := newSyslog("udp", raddr, syslog.LOG_ERR, "MINIO")
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fatalIf(err, "Unable to initialize syslog logger.")
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log.Hooks.Add(syslogHook) // Add syslog hook.
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log.Formatter = &logrus.JSONFormatter{} // JSON formatted log.
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log.Level = logrus.ErrorLevel // Minimum log level.
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}
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// newSyslog - Creates a hook to be added to an instance of logger.
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func newSyslog(network, raddr string, priority syslog.Priority, tag string) (*syslogHook, error) {
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w, err := syslog.Dial(network, raddr, priority, tag)
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return &syslogHook{w, network, raddr}, err
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}
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// Fire - fire the log event
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func (hook *syslogHook) Fire(entry *logrus.Entry) error {
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line, err := entry.String()
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if err != nil {
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return fmt.Errorf("Unable to read entry, %v", err)
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}
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switch entry.Level {
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case logrus.PanicLevel:
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return hook.writer.Crit(line)
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case logrus.FatalLevel:
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return hook.writer.Crit(line)
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case logrus.ErrorLevel:
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return hook.writer.Err(line)
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default:
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return nil
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}
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}
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// Levels -
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func (hook *syslogHook) Levels() []logrus.Level {
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return []logrus.Level{
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logrus.PanicLevel,
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logrus.FatalLevel,
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logrus.ErrorLevel,
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}
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}
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