Rainbond/eventlog/store/manager.go
2020-11-25 16:39:38 +08:00

528 lines
15 KiB
Go

// Copyright (C) 2014-2018 Goodrain Co., Ltd.
// RAINBOND, Application Management Platform
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version. For any non-GPL usage of Rainbond,
// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
// must be obtained first.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package store
import (
"errors"
"strconv"
"github.com/goodrain/rainbond/eventlog/db"
coreutil "github.com/goodrain/rainbond/util"
"github.com/goodrain/rainbond/eventlog/conf"
"time"
"strings"
"fmt"
"encoding/json"
"bytes"
"context"
"os"
"path/filepath"
"github.com/pquerna/ffjson/ffjson"
"github.com/prometheus/client_golang/prometheus"
"github.com/sirupsen/logrus"
)
//Manager 存储管理器
type Manager interface {
ReceiveMessageChan() chan []byte
SubMessageChan() chan [][]byte
PubMessageChan() chan [][]byte
DockerLogMessageChan() chan []byte
GetDockerLogs(serviceID string, length int) []string
MonitorMessageChan() chan [][]byte
WebSocketMessageChan(mode, eventID, subID string) chan *db.EventLogMessage
NewMonitorMessageChan() chan []byte
RealseWebSocketMessageChan(mode, EventID, subID string)
Run() error
Stop()
Monitor() []db.MonitorData
Scrape(ch chan<- prometheus.Metric, namespace, exporter, from string) error
Error() chan error
HealthCheck() map[string]string
}
//NewManager 存储管理器
func NewManager(conf conf.EventStoreConf, log *logrus.Entry) (Manager, error) {
conf.DB.Type = "eventfile"
dbPlugin, err := db.NewManager(conf.DB, log)
if err != nil {
return nil, err
}
conf.DB.Type = "file"
filePlugin, err := db.NewManager(conf.DB, log)
if err != nil {
return nil, err
}
ctx, cancel := context.WithCancel(context.Background())
storeManager := &storeManager{
cancel: cancel,
context: ctx,
conf: conf,
log: log,
receiveChan: make(chan []byte, 300),
subChan: make(chan [][]byte, 300),
pubChan: make(chan [][]byte, 300),
dockerLogChan: make(chan []byte, 2048),
monitorMessageChan: make(chan [][]byte, 100),
newmonitorMessageChan: make(chan []byte, 2048),
chanCacheSize: 100,
dbPlugin: dbPlugin,
filePlugin: filePlugin,
errChan: make(chan error),
}
handle := NewStore("handle", storeManager)
read := NewStore("read", storeManager)
docker := NewStore("docker_log", storeManager)
newmonitor := NewStore("newmonitor", storeManager)
storeManager.handleMessageStore = handle
storeManager.readMessageStore = read
storeManager.dockerLogStore = docker
storeManager.newmonitorMessageStore = newmonitor
return storeManager, nil
}
type storeManager struct {
cancel func()
context context.Context
handleMessageStore MessageStore
readMessageStore MessageStore
dockerLogStore MessageStore
newmonitorMessageStore MessageStore
receiveChan chan []byte
pubChan, subChan chan [][]byte
dockerLogChan chan []byte
monitorMessageChan chan [][]byte
newmonitorMessageChan chan []byte
chanCacheSize int
conf conf.EventStoreConf
log *logrus.Entry
dbPlugin db.Manager
filePlugin db.Manager
errChan chan error
}
func (s *storeManager) HealthCheck() map[string]string {
receiveChan := len(s.receiveChan) == 300
pubChan := len(s.pubChan) == 300
subChan := len(s.subChan) == 300
dockerLogChan := len(s.dockerLogChan) == 2048
monitorMessageChan := len(s.monitorMessageChan) == 100
newmonitorMessageChan := len(s.newmonitorMessageChan) == 2048
if receiveChan || pubChan || subChan || dockerLogChan || monitorMessageChan || newmonitorMessageChan {
return map[string]string{"status": "unusual", "info": "channel blockage"}
}
return map[string]string{"status": "health", "info": "eventlog service health"}
}
//Scrape prometheue monitor metrics
//step1: docker log monitor
//step2: event message monitor
//step3: monitor message monitor
var healthStatus float64
func (s *storeManager) Scrape(ch chan<- prometheus.Metric, namespace, exporter, from string) error {
s.dockerLogStore.Scrape(ch, namespace, exporter, from)
s.handleMessageStore.Scrape(ch, namespace, exporter, from)
s.newmonitorMessageStore.Scrape(ch, namespace, exporter, from)
chanDesc := prometheus.NewDesc(
prometheus.BuildFQName(namespace, exporter, "chan_cache_size"),
"the handle chan cache size.",
[]string{"from", "chan"}, nil,
)
var healthDesc = prometheus.NewDesc(
prometheus.BuildFQName(namespace, exporter, "health_status"),
"health status.",
[]string{"service_name"}, nil,
)
healthInfo := s.HealthCheck()
if healthInfo["status"] == "health" {
healthStatus = 1
} else {
healthStatus = 0
}
ch <- prometheus.MustNewConstMetric(chanDesc, prometheus.GaugeValue, float64(len(s.dockerLogChan)), from, "container_log")
ch <- prometheus.MustNewConstMetric(chanDesc, prometheus.GaugeValue, float64(len(s.monitorMessageChan)), from, "monitor_message")
ch <- prometheus.MustNewConstMetric(chanDesc, prometheus.GaugeValue, float64(len(s.receiveChan)), from, "event_message")
ch <- prometheus.MustNewConstMetric(healthDesc, prometheus.GaugeValue, healthStatus, "eventlog")
return nil
}
func (s *storeManager) Monitor() []db.MonitorData {
data := s.dockerLogStore.GetMonitorData()
moData := s.newmonitorMessageStore.GetMonitorData()
if moData != nil {
data.LogSizePeerM += moData.LogSizePeerM
data.ServiceSize += moData.ServiceSize
}
re := []db.MonitorData{*data}
dataHand := s.handleMessageStore.GetMonitorData()
if dataHand != nil {
re = append(re, *dataHand)
data.LogSizePeerM += dataHand.LogSizePeerM
data.ServiceSize += dataHand.ServiceSize
}
return re
}
func (s *storeManager) ReceiveMessageChan() chan []byte {
if s.receiveChan == nil {
s.receiveChan = make(chan []byte, 300)
}
return s.receiveChan
}
func (s *storeManager) SubMessageChan() chan [][]byte {
if s.subChan == nil {
s.subChan = make(chan [][]byte, 300)
}
return s.subChan
}
func (s *storeManager) PubMessageChan() chan [][]byte {
if s.pubChan == nil {
s.pubChan = make(chan [][]byte, 300)
}
return s.pubChan
}
func (s *storeManager) DockerLogMessageChan() chan []byte {
if s.dockerLogChan == nil {
s.dockerLogChan = make(chan []byte, 2048)
}
return s.dockerLogChan
}
func (s *storeManager) MonitorMessageChan() chan [][]byte {
if s.monitorMessageChan == nil {
s.monitorMessageChan = make(chan [][]byte, 100)
}
return s.monitorMessageChan
}
func (s *storeManager) NewMonitorMessageChan() chan []byte {
if s.newmonitorMessageChan == nil {
s.newmonitorMessageChan = make(chan []byte, 2048)
}
return s.newmonitorMessageChan
}
func (s *storeManager) WebSocketMessageChan(mode, eventID, subID string) chan *db.EventLogMessage {
if mode == "event" {
ch := s.readMessageStore.SubChan(eventID, subID)
return ch
}
if mode == "docker" {
ch := s.dockerLogStore.SubChan(eventID, subID)
return ch
}
if mode == "newmonitor" {
ch := s.newmonitorMessageStore.SubChan(eventID, subID)
return ch
}
return nil
}
func (s *storeManager) Run() error {
s.log.Info("event message store manager start")
s.handleMessageStore.Run()
s.readMessageStore.Run()
s.dockerLogStore.Run()
s.newmonitorMessageStore.Run()
for i := 0; i < s.conf.HandleMessageCoreNumber; i++ {
go s.handleReceiveMessage()
}
for i := 0; i < s.conf.HandleSubMessageCoreNumber; i++ {
go s.handleSubMessage()
}
for i := 0; i < s.conf.HandleDockerLogCoreNumber; i++ {
go s.handleDockerLog()
}
go s.handleNewMonitorMessage()
go s.cleanLog()
return nil
}
//cleanLog
// clean service log that before 7 days in every 24h
// clean event log that before 30 days message in every 24h
func (s *storeManager) cleanLog() {
coreutil.Exec(s.context, func() error {
//do something
pathname := s.conf.DB.HomePath
logrus.Infof("start clean history service log %s", pathname)
files, err := coreutil.GetFileList(pathname, 2)
if err != nil {
logrus.Error("list log dir error, ", err.Error())
} else {
for _, fi := range files {
if !strings.Contains(fi, "eventlog") {
if err := s.deleteFile(fi); err != nil {
logrus.Errorf("delete log file %s error. %s", fi, err.Error())
}
}
}
}
return nil
}, time.Hour*24)
}
func (s *storeManager) deleteFile(filename string) error {
now := time.Now()
if strings.HasSuffix(filename, "stdout.log") {
return nil
}
name := filepath.Base(filename)
lis := strings.Split(name, ".")
if len(lis) < 1 {
return errors.New("file name format error")
}
date := lis[0]
loc, _ := time.LoadLocation("Local")
theTime, err := time.ParseInLocation("2006-1-2", date, loc)
if err != nil {
return err
}
saveDay, _ := strconv.Atoi(os.Getenv("DOCKER_LOG_SAVE_DAY"))
if saveDay == 0 {
saveDay = 7
}
if now.After(theTime.Add(time.Duration(saveDay) * time.Hour * 24)) {
if err := os.Remove(filename); err != nil {
if !strings.Contains(err.Error(), "No such file or directory") {
return err
}
}
logrus.Debugf("clean service log %s", filename)
}
return nil
}
func (s *storeManager) checkHealth() {
}
func (s *storeManager) parsingMessage(msg []byte, messageType string) (*db.EventLogMessage, error) {
if msg == nil {
return nil, errors.New("unable parsing nil message")
}
//message := s.pool.Get().(*db.EventLogMessage)不能使用对象池,会阻塞进程
var message db.EventLogMessage
message.Content = msg
if messageType == "json" {
err := ffjson.Unmarshal(msg, &message)
if err != nil {
return &message, err
}
if message.EventID == "" {
return &message, errors.New("are not present in the message event_id")
}
return &message, nil
}
return nil, errors.New("unable to process configuration of message format type")
}
//handleNewMonitorMessage 处理新监控数据
func (s *storeManager) handleNewMonitorMessage() {
loop:
for {
select {
case <-s.context.Done():
return
case msg, ok := <-s.newmonitorMessageChan:
if !ok {
s.log.Error("handle new monitor message core stop.monitor message log chan closed")
break loop
}
if msg == nil {
continue
}
//s.log.Debugf("receive message %s", string(message.Content))
if s.conf.ClusterMode {
//消息直接集群共享
s.pubChan <- [][]byte{[]byte(db.ServiceNewMonitorMessage), msg}
}
s.newmonitorMessageStore.InsertMessage(&db.EventLogMessage{MonitorData: msg})
}
}
s.errChan <- fmt.Errorf("handle monitor log core exist")
}
func (s *storeManager) handleReceiveMessage() {
s.log.Debug("event message store manager start handle receive message")
loop:
for {
select {
case <-s.context.Done():
return
case msg, ok := <-s.receiveChan:
if !ok {
s.log.Error("handle receive message core stop. receive chan closed")
break loop
}
if msg == nil {
s.log.Debug("handle receive message core stop.")
continue
}
//s.log.Debugf("receive message %s", string(message.Content))
if s.conf.ClusterMode {
//消息直接集群共享
s.pubChan <- [][]byte{[]byte(db.EventMessage), msg}
}
message, err := s.parsingMessage(msg, s.conf.MessageType)
if err != nil {
s.log.Error("parsing the message before insert message error.", err.Error())
if message != nil {
s.handleMessageStore.InsertGarbageMessage(message)
}
continue
}
//s.log.Debug("Receive Message:", string(message.Content))
s.handleMessageStore.InsertMessage(message)
s.readMessageStore.InsertMessage(message)
}
}
s.errChan <- fmt.Errorf("handle monitor log core exist")
}
func (s *storeManager) handleSubMessage() {
s.log.Debug("event message store manager start handle sub message")
for {
select {
case <-s.context.Done():
return
case msg, ok := <-s.subChan:
if !ok {
s.log.Debug("handle sub message core stop.receive chan closed")
return
}
if msg == nil {
continue
}
if len(msg) == 2 {
if string(msg[0]) == string(db.ServiceNewMonitorMessage) {
s.newmonitorMessageStore.InsertMessage(&db.EventLogMessage{MonitorData: msg[1]})
continue
}
//s.log.Debugf("receive sub message %s", string(msg))
message, err := s.parsingMessage(msg[1], s.conf.MessageType)
if err != nil {
s.log.Error("parsing the message before insert message error.", err.Error())
continue
}
if string(msg[0]) == string(db.EventMessage) {
s.readMessageStore.InsertMessage(message)
}
}
}
}
}
type containerLog struct {
ContainerID string `json:"container_id"`
ServiceID string `json:"service_id"`
Msg string `json:"msg"`
Time json.RawMessage `json:"time"`
}
func (s *storeManager) handleDockerLog() {
s.log.Debug("event message store manager start handle docker container log message")
loop:
for {
select {
case <-s.context.Done():
return
case m, ok := <-s.dockerLogChan:
if !ok {
s.log.Error("handle docker log message core stop.docker log chan closed")
break loop
}
if m == nil {
continue
}
if len(m) < 47 {
continue
}
containerID := m[0:12] //0-12
serviceID := string(m[13:45]) //13-45
log := m[45:]
buffer := bytes.NewBuffer(containerID)
buffer.WriteString(":")
buffer.Write(log)
message := db.EventLogMessage{
Message: buffer.String(),
Content: buffer.Bytes(),
EventID: serviceID,
}
s.dockerLogStore.InsertMessage(&message)
buffer.Reset()
}
}
s.errChan <- fmt.Errorf("handle docker log core exist")
}
type event struct {
Name string `json:"name"`
Data []interface{} `json:"data"`
Update string `json:"update_time"`
}
func (s *storeManager) RealseWebSocketMessageChan(mode string, eventID, subID string) {
if mode == "event" {
s.readMessageStore.RealseSubChan(eventID, subID)
}
if mode == "docker" {
s.dockerLogStore.RealseSubChan(eventID, subID)
}
if mode == "newmonitor" {
s.newmonitorMessageStore.RealseSubChan(eventID, subID)
}
}
func (s *storeManager) Stop() {
s.handleMessageStore.stop()
s.readMessageStore.stop()
s.dockerLogStore.stop()
s.newmonitorMessageStore.stop()
s.cancel()
if s.filePlugin != nil {
s.filePlugin.Close()
}
if s.dbPlugin != nil {
s.dbPlugin.Close()
}
s.log.Info("Stop the store manager.")
}
func (s *storeManager) Error() chan error {
return s.errChan
}
//GetDockerLogs get history docker log
func (s *storeManager) GetDockerLogs(serviceID string, length int) []string {
return s.dockerLogStore.GetHistoryMessage(serviceID, length)
}