/
main.go
214 lines (186 loc) · 5.49 KB
/
main.go
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// Package remove Some tasks to operate ES
package remove
import (
"bytes"
"context"
"fmt"
"strings"
"sync"
"time"
gconfig "github.com/Laisky/go-config/v2"
"github.com/Laisky/go-utils/v4"
"github.com/Laisky/go-utils/v4/json"
"github.com/Laisky/zap"
"golang.org/x/sync/semaphore"
"github.com/Laisky/go-ramjet/internal/tasks/store"
"github.com/Laisky/go-ramjet/library/log"
)
var (
sem *semaphore.Weighted // concurrent to delete documents
ctx = context.Background()
indexLock = map[string]*sync.Mutex{}
)
// Query json query to request elasticsearch
type Query struct {
Range *Range `json:"query"`
Size int `json:"size"`
// Sort []map[string]string `json:"sort"`
Term *map[string]interface{} `json:"term,omitempty"`
}
// Range range query in Query
type Range struct {
Range map[string]interface{} `json:"range"`
}
// Resp json response from elasticsearch
type Resp struct {
Deleted int `json:"deleted"`
Total int `json:"total"`
}
// MonitorTaskConfig config for each ES index
type MonitorTaskConfig struct {
l *sync.Mutex
Index string
Expire int
Term *map[string]interface{}
}
func (c *MonitorTaskConfig) Lock() {
c.l.Lock()
}
func (c *MonitorTaskConfig) Unlock() {
c.l.Unlock()
}
func (c *MonitorTaskConfig) SetLock(l *sync.Mutex) {
c.l = l
}
func getDateStringSecondsAgo(seconds int) (dateString string) {
dateString = time.Now().Add(time.Second * time.Duration(-seconds)).Format(time.RFC3339)
return
}
func getURLByIndexName(index string) (url string) {
var baseURL bytes.Buffer
baseURL.WriteString(gconfig.Shared.GetString("tasks.elasticsearch.url"))
baseURL.WriteString(index)
baseURL.WriteString("/_delete_by_query?conflicts=proceed")
url = baseURL.String()
return
}
// isRespInTrouble check whether response is really in trouble when status!=200
func isRespInTrouble(errMsg string) (isErr bool) {
log.Logger.Debug("isRespInTrouble", zap.String("err", errMsg))
isErr = true
if strings.Contains(errMsg, "No mapping found for [@timestamp]") {
isErr = false
return
}
return
}
func removeDocumentsByTaskSetting(task *MonitorTaskConfig) {
task.Lock() // do not parallel to remove same index
defer task.Unlock()
if err := sem.Acquire(ctx, 1); err != nil {
log.Logger.Error("Failed to acquire semaphore", zap.Error(err))
return
}
defer sem.Release(1)
dateBefore := getDateStringSecondsAgo(task.Expire)
log.Logger.Info("removeDocumentsByTaskSetting",
zap.String("task", task.Index),
zap.String("dateBefore", dateBefore))
requestBody := Query{
Range: &Range{
Range: map[string]interface{}{"@timestamp": map[string]string{
"lte": dateBefore,
}},
},
Size: gconfig.Shared.GetInt("tasks.elasticsearch.batch"),
// Sort: []map[string]string{
// map[string]string{"@timestamp": "asc"},
// },
Term: task.Term,
}
var resp Resp
url := getURLByIndexName(task.Index)
requestData := utils.RequestData{
Data: &requestBody,
}
// dry
if gconfig.Shared.GetBool("dry") {
b, _ := json.Marshal(requestData)
log.Logger.Info("request ", zap.ByteString("data", b))
return
}
if err := utils.RequestJSON("post", url, &requestData, &resp); err != nil {
errMsg := err.Error()
if isRespInTrouble(errMsg) {
log.Logger.Error("delete documents error",
zap.String("index", task.Index),
zap.String("url", url),
zap.Error(err))
resp = Resp{
Deleted: 0,
Total: gconfig.Shared.GetInt("tasks.elasticsearch.batch"),
}
} else {
log.Logger.Debug("http.RequestJSON got some innocent error",
zap.Error(err))
resp = Resp{
Deleted: 0,
Total: 0,
}
}
}
log.Logger.Info("deleted documents",
zap.String("index", task.Index),
zap.Int("deleted", resp.Deleted),
zap.Int("total", resp.Total))
if resp.Total >= gconfig.Shared.GetInt("tasks.elasticsearch.batch") { // continue to delete documents
go removeDocumentsByTaskSetting(task)
}
}
// BindRemoveCPLogs Tasks to remove documents in ES
func BindRemoveCPLogs() {
log.Logger.Info("bind remove ES Logs...")
if gconfig.Shared.GetBool("debug") { // set for debug
gconfig.Shared.Set("tasks.elasticsearch.interval", 1)
gconfig.Shared.Set("tasks.elasticsearch.batch", 1)
}
sem = semaphore.NewWeighted(gconfig.Shared.GetInt64("tasks.elasticsearch.concurrent"))
go store.TaskStore.Ticker(gconfig.Shared.GetDuration("tasks.elasticsearch.interval")*time.Second, runTask)
}
func runTask() {
taskSettings := loadDeleteTaskSettings()
for _, taskConfig := range taskSettings {
if _, ok := indexLock[taskConfig.Index]; !ok {
indexLock[taskConfig.Index] = &sync.Mutex{}
}
taskConfig.SetLock(indexLock[taskConfig.Index])
go removeDocumentsByTaskSetting(taskConfig)
}
}
// loadDeleteTaskSettings load config for each subtask
func loadDeleteTaskSettings() (taskSettings []*MonitorTaskConfig) {
log.Logger.Debug("loadDeleteTaskSettings...")
var (
config map[interface{}]interface{}
indexConfig *MonitorTaskConfig
term = new(map[string]interface{})
)
for _, configI := range gconfig.Shared.Get("tasks.elasticsearch.configs").([]interface{}) {
log.Logger.Debug("load delete tasks settings")
config = configI.(map[interface{}]interface{})
indexConfig = &MonitorTaskConfig{
Index: config["index"].(string),
}
if val, ok := config["expire"]; ok {
indexConfig.Expire = val.(int)
}
if val, ok := config["term"]; ok {
if err := json.Unmarshal([]byte(val.(string)), term); err != nil {
panic(fmt.Sprintf("load delete settings error: %+v", err))
}
indexConfig.Term = term
}
taskSettings = append(taskSettings, indexConfig)
}
return
}