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Merge pull request #26740 from tagomoris/update-fluent-logger-golang-1.2.0

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Update fluent-logger-golang to v1.2.0.
This commit is contained in:
Alexander Morozov 2016-09-20 07:49:30 -07:00 committed by GitHub
commit e3e6d9f9d0
3 changed files with 309 additions and 80 deletions
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2
hack/vendor.sh
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@ -119,7 +119,7 @@ clone git github.com/golang/protobuf 3c84672111d91bb5ac31719e112f9f7126a0e26e
# gelf logging driver deps
clone git github.com/Graylog2/go-gelf aab2f594e4585d43468ac57287b0dece9d806883
clone git github.com/fluent/fluent-logger-golang v1.1.0
clone git github.com/fluent/fluent-logger-golang v1.2.0
# fluent-logger-golang deps
clone git github.com/philhofer/fwd 899e4efba8eaa1fea74175308f3fae18ff3319fa
clone git github.com/tinylib/msgp 75ee40d2601edf122ef667e2a07d600d4c44490c

209
vendor/src/github.com/fluent/fluent-logger-golang/LICENSE vendored
View file

@ -1,13 +1,202 @@
Copyright (c) 2013 Tatsuo Kaniwa
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
Apache License
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http://www.apache.org/licenses/
http://www.apache.org/licenses/LICENSE-2.0
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
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178
vendor/src/github.com/fluent/fluent-logger-golang/fluent/fluent.go vendored
View file

@ -1,6 +1,7 @@
package fluent
import (
"encoding/json"
"errors"
"fmt"
"io"
@ -25,24 +26,28 @@ const (
)
type Config struct {
FluentPort int
FluentHost string
FluentNetwork string
FluentSocketPath string
Timeout time.Duration
BufferLimit int
RetryWait int
MaxRetry int
TagPrefix string
AsyncConnect bool
FluentPort int `json:"fluent_port"`
FluentHost string `json:"fluent_host"`
FluentNetwork string `json:"fluent_network"`
FluentSocketPath string `json:"fluent_socket_path"`
Timeout time.Duration `json:"timeout"`
BufferLimit int `json:"buffer_limit"`
RetryWait int `json:"retry_wait"`
MaxRetry int `json:"max_retry"`
TagPrefix string `json:"tag_prefix"`
AsyncConnect bool `json:"async_connect"`
MarshalAsJSON bool `json:"marshal_as_json"`
}
type Fluent struct {
Config
mubuff sync.Mutex
pending []byte
muconn sync.Mutex
conn io.WriteCloser
pending []byte
reconnecting bool
mu sync.Mutex
}
// New creates a new Logger.
@ -140,9 +145,9 @@ func (f *Fluent) PostWithTime(tag string, tm time.Time, message interface{}) err
}
if msgtype.Kind() != reflect.Map {
return errors.New("messge must be a map")
return errors.New("fluent#PostWithTime: message must be a map")
} else if msgtype.Key().Kind() != reflect.String {
return errors.New("map keys must be strings")
return errors.New("fluent#PostWithTime: map keys must be strings")
}
kv := make(map[string]interface{})
@ -154,33 +159,54 @@ func (f *Fluent) PostWithTime(tag string, tm time.Time, message interface{}) err
}
func (f *Fluent) EncodeAndPostData(tag string, tm time.Time, message interface{}) error {
if data, dumperr := f.EncodeData(tag, tm, message); dumperr != nil {
return fmt.Errorf("fluent#EncodeAndPostData: can't convert '%s' to msgpack:%s", message, dumperr)
// fmt.Println("fluent#Post: can't convert to msgpack:", message, dumperr)
} else {
f.PostRawData(data)
return nil
var data []byte
var err error
if data, err = f.EncodeData(tag, tm, message); err != nil {
return fmt.Errorf("fluent#EncodeAndPostData: can't convert '%#v' to msgpack:%v", message, err)
}
return f.postRawData(data)
}
// Deprecated: Use EncodeAndPostData instead
func (f *Fluent) PostRawData(data []byte) {
f.mu.Lock()
f.pending = append(f.pending, data...)
f.mu.Unlock()
f.postRawData(data)
}
func (f *Fluent) postRawData(data []byte) error {
if err := f.appendBuffer(data); err != nil {
return err
}
if err := f.send(); err != nil {
f.close()
if len(f.pending) > f.Config.BufferLimit {
f.flushBuffer()
}
} else {
f.flushBuffer()
return err
}
return nil
}
// For sending forward protocol adopted JSON
type MessageChunk struct {
message Message
}
// Golang default marshaler does not support
// ["value", "value2", {"key":"value"}] style marshaling.
// So, it should write JSON marshaler by hand.
func (chunk *MessageChunk) MarshalJSON() ([]byte, error) {
data, err := json.Marshal(chunk.message.Record)
return []byte(fmt.Sprintf("[\"%s\",%d,%s,null]", chunk.message.Tag,
chunk.message.Time, data)), err
}
func (f *Fluent) EncodeData(tag string, tm time.Time, message interface{}) (data []byte, err error) {
timeUnix := tm.Unix()
msg := &Message{Tag: tag, Time: timeUnix, Record: message}
data, err = msg.MarshalMsg(nil)
if f.Config.MarshalAsJSON {
msg := Message{Tag: tag, Time: timeUnix, Record: message}
chunk := &MessageChunk{message: msg}
data, err = json.Marshal(chunk)
} else {
msg := &Message{Tag: tag, Time: timeUnix, Record: message}
data, err = msg.MarshalMsg(nil)
}
return
}
@ -193,23 +219,32 @@ func (f *Fluent) Close() (err error) {
return
}
// close closes the connection.
func (f *Fluent) close() (err error) {
if f.conn != nil {
f.mu.Lock()
defer f.mu.Unlock()
} else {
return
// appendBuffer appends data to buffer with lock.
func (f *Fluent) appendBuffer(data []byte) error {
f.mubuff.Lock()
defer f.mubuff.Unlock()
if len(f.pending)+len(data) > f.Config.BufferLimit {
return errors.New(fmt.Sprintf("fluent#appendBuffer: Buffer full, limit %v", f.Config.BufferLimit))
}
f.pending = append(f.pending, data...)
return nil
}
// close closes the connection.
func (f *Fluent) close() {
f.muconn.Lock()
if f.conn != nil {
f.conn.Close()
f.conn = nil
}
return
f.muconn.Unlock()
}
// connect establishes a new connection using the specified transport.
func (f *Fluent) connect() (err error) {
f.muconn.Lock()
defer f.muconn.Unlock()
switch f.Config.FluentNetwork {
case "tcp":
f.conn, err = net.DialTimeout(f.Config.FluentNetwork, f.Config.FluentHost+":"+strconv.Itoa(f.Config.FluentPort), f.Config.Timeout)
@ -218,6 +253,10 @@ func (f *Fluent) connect() (err error) {
default:
err = net.UnknownNetworkError(f.Config.FluentNetwork)
}
if err != nil {
f.reconnecting = false
}
return
}
@ -226,44 +265,45 @@ func e(x, y float64) int {
}
func (f *Fluent) reconnect() {
go func() {
for i := 0; ; i++ {
err := f.connect()
if err == nil {
f.mu.Lock()
f.reconnecting = false
f.mu.Unlock()
break
} else {
if i == f.Config.MaxRetry {
panic("fluent#reconnect: failed to reconnect!")
}
waitTime := f.Config.RetryWait * e(defaultReconnectWaitIncreRate, float64(i-1))
time.Sleep(time.Duration(waitTime) * time.Millisecond)
}
for i := 0; ; i++ {
err := f.connect()
if err == nil {
f.send()
return
}
}()
if i == f.Config.MaxRetry {
// TODO: What we can do when connection failed MaxRetry times?
panic("fluent#reconnect: failed to reconnect!")
}
waitTime := f.Config.RetryWait * e(defaultReconnectWaitIncreRate, float64(i-1))
time.Sleep(time.Duration(waitTime) * time.Millisecond)
}
}
func (f *Fluent) flushBuffer() {
f.mu.Lock()
defer f.mu.Unlock()
f.pending = f.pending[0:0]
}
func (f *Fluent) send() error {
f.muconn.Lock()
defer f.muconn.Unlock()
func (f *Fluent) send() (err error) {
if f.conn == nil {
if f.reconnecting == false {
f.mu.Lock()
f.reconnecting = true
f.mu.Unlock()
f.reconnect()
go f.reconnect()
}
err = errors.New("fluent#send: can't send logs, client is reconnecting")
} else {
f.mu.Lock()
_, err = f.conn.Write(f.pending)
f.mu.Unlock()
return errors.New("fluent#send: can't send logs, client is reconnecting")
}
return
f.mubuff.Lock()
defer f.mubuff.Unlock()
var err error
if len(f.pending) > 0 {
_, err = f.conn.Write(f.pending)
if err != nil {
f.conn.Close()
f.conn = nil
} else {
f.pending = f.pending[:0]
}
}
return err
}