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| package main
import (
"context"
"encoding/json"
"errors"
"flag"
"fmt"
"github.com/joho/godotenv"
"io"
"os"
"runtime"
"slices"
"sync"
"sync/atomic"
"time"
"github.com/olivere/elastic"
"github.com/samber/lo"
"golang.org/x/sync/errgroup"
)
// 配置常量
const (
LivepodIndex = "livepod*"
SloTraceDataDaily = "slo_trace_data_daily*"
PodYamlIndex = "pod_yaml*"
ScrollSize = 2000
ChannelBufferSize = 50
WorkerPoolSize = 50
// 通用字段常量（替换业务特定字段）
AnnotationKeyTimestamp = "xxx"
LabelKeyBizName = "xxx"
FinalizerKeyResource = "xxx"
)
var (
MaxSlices = getOptimalSliceCount()
bizMap sync.Map // map[string]*int64
podYamlChannel = make(chan []PodYamlR, ChannelBufferSize)
resultWg sync.WaitGroup
)
type R struct {
Uid string `json:"uid"`
}
func (r *R) UnmarshalJSON(data []byte) error {
var raw map[string]interface{}
if err := json.Unmarshal(data, &raw); err != nil {
return err
}
// 尝试从 "uid" 或 "PodUID" 中取值
if val, ok := raw["uid"]; ok {
if str, ok := val.(string); ok {
r.Uid = str
}
} else if val, ok := raw["PodUID"]; ok {
if str, ok := val.(string); ok {
r.Uid = str
}
}
return nil
}
type PodYamlR struct {
Pod struct {
Metadata struct {
Finalizers []string `json:"finalizers"`
Annotations struct {
ResourceRegisteredTimestamp string `json:"xxx"`
} `json:"annotations"`
Labels struct {
BusinessNameKey string `json:"xxx"`
} `json:"labels"`
} `json:"metadata"`
} `json:"pod"`
}
type ESClient struct {
*elastic.Client
}
func NewESClient(c *Config) *ESClient {
client, err := elastic.NewClient(
elastic.SetURL(c.EsHost),
elastic.SetBasicAuth(c.EsUserName, c.EsPassword),
elastic.SetSniff(false),
)
if err != nil {
panic(fmt.Sprintf("Failed to create Elasticsearch client: %v", err))
}
return &ESClient{client}
}
func (c *ESClient) GetBizNames(ctx context.Context) ([]string, error) {
result, err := c.Search(LivepodIndex).
Size(0).
Aggregation("agg", elastic.NewTermsAggregation().Field("bizname.keyword")).
Do(ctx)
if err != nil {
return nil, fmt.Errorf("failed to get biz names: %w", err)
}
terms, found := result.Aggregations.Terms("agg")
if !found {
return nil, nil
}
bizNames := make([]string, 0, len(terms.Buckets))
for _, bucket := range terms.Buckets {
if bizName, ok := bucket.Key.(string); ok && bizName != "" {
bizNames = append(bizNames, bizName)
}
}
return bizNames, nil
}
func (c *ESClient) ScrollLivepodData(ctx context.Context, bizNames []string, resultChan chan<- []R) error {
if len(bizNames) == 0 {
return nil
}
query := elastic.NewBoolQuery().Filter(
elastic.NewTermsQuery("bizname.keyword", lo.ToAnySlice(bizNames)...),
)
g, ctx := errgroup.WithContext(ctx)
for i := 0; i < MaxSlices; i++ {
sliceID := i
g.Go(func() error {
sliceQuery := elastic.NewSliceQuery().Id(sliceID).Max(MaxSlices)
scrollService := c.Scroll(LivepodIndex).
Type("_doc").
Query(query).
Size(ScrollSize).
FetchSourceContext(elastic.NewFetchSourceContext(true).Include("uid")).
Slice(sliceQuery)
var scrollID string
for {
select {
case <-ctx.Done():
return ctx.Err()
default:
searchResult, err := scrollService.ScrollId(scrollID).Scroll("2h").Do(ctx)
if err == io.EOF {
return nil
}
if err != nil {
return fmt.Errorf("error: slice %d scroll error: %w", sliceID, err)
}
scrollID = searchResult.ScrollId
if len(searchResult.Hits.Hits) == 0 {
continue
}
var batch []R
for _, hit := range searchResult.Hits.Hits {
var r R
if err := json.Unmarshal(*hit.Source, &r); err != nil {
fmt.Printf("error: slice %d unmarshal error: %v\n", sliceID, err)
continue
}
batch = append(batch, r)
}
scrollCount.Add(int64(len(batch)))
select {
case resultChan <- batch:
fmt.Printf("%s Slice %d processed %d documents\n",
time.Now().Format("15:04:05"), sliceID, len(batch))
case <-ctx.Done():
return ctx.Err()
}
}
}
})
}
err := g.Wait()
close(resultChan)
return err
}
func (c *ESClient) ScrollSloTraceDataDailyAddData(ctx context.Context, bizNames []string, resultChan chan<- []R) error {
if len(bizNames) == 0 {
return nil
}
query := elastic.NewBoolQuery().Filter(
elastic.NewTermsQuery("BizName", lo.ToAnySlice(bizNames)...),
elastic.NewRangeQuery("CreatedTime").TimeZone("UTC").
Gte(time.Now().AddDate(0, 0, -1)).
Lte(time.Now()),
elastic.NewTermQuery("Type.keyword", "create"),
)
g, ctx := errgroup.WithContext(ctx)
for i := 0; i < MaxSlices; i++ {
sliceID := i
g.Go(func() error {
sliceQuery := elastic.NewSliceQuery().Id(sliceID).Max(MaxSlices)
scrollService := c.Scroll(SloTraceDataDaily).
Type("data").
Query(query).
Size(ScrollSize).
FetchSourceContext(elastic.NewFetchSourceContext(true).Include("PodUID")).
Slice(sliceQuery)
var scrollID string
for {
select {
case <-ctx.Done():
return ctx.Err()
default:
searchResult, err := scrollService.ScrollId(scrollID).Scroll("2h").Do(ctx)
if err == io.EOF {
return nil
}
if err != nil {
return fmt.Errorf("error: slice %d scroll error: %w", sliceID, err)
}
scrollID = searchResult.ScrollId
if len(searchResult.Hits.Hits) == 0 {
continue
}
var batch []R
for _, hit := range searchResult.Hits.Hits {
var r R
if err := json.Unmarshal(*hit.Source, &r); err != nil {
fmt.Printf("error: slice %d unmarshal error: %v\n", sliceID, err)
continue
}
batch = append(batch, r)
}
scrollCount.Add(int64(len(batch)))
select {
case resultChan <- batch:
fmt.Printf("%s Slice %d processed %d documents\n",
time.Now().Format("15:04:05"), sliceID, len(batch))
case <-ctx.Done():
return ctx.Err()
}
}
}
})
}
err := g.Wait()
close(resultChan)
return err
}
var scrollCount atomic.Int64
func (c *ESClient) QueryPodYamlByUIDs(ctx context.Context, uids []string) ([]PodYamlR, error) {
if len(uids) == 0 {
return nil, nil
}
result, err := c.Search(PodYamlIndex).
Query(elastic.NewBoolQuery().Filter(
elastic.NewTermsQuery("podUID.keyword", lo.ToAnySlice(uids)...),
)).
Collapse(elastic.NewCollapseBuilder("podUID.keyword")).
FetchSourceContext(elastic.NewFetchSourceContext(true).Include(
"pod.metadata.finalizers",
AnnotationKeyTimestamp,
LabelKeyBizName,
)).
Sort("stageTimestamp", false).
Size(10000).
Do(ctx)
if err != nil {
fmt.Printf("error: failed to query pod_yaml: %v\n", err)
return nil, fmt.Errorf("failed to query pod_yaml: %w", err)
}
podYamls := make([]PodYamlR, 0, len(result.Hits.Hits))
for _, hit := range result.Hits.Hits {
var podYaml PodYamlR
if err := json.Unmarshal(*hit.Source, &podYaml); err != nil {
fmt.Printf("error: failed to unmarshal pod_yaml: %v\n", err)
continue
}
podYamls = append(podYamls, podYaml)
}
return podYamls, nil
}
func FilterPodYamls(podYamls []PodYamlR) []PodYamlR {
return lo.Filter(podYamls, func(podYaml PodYamlR, _ int) bool {
if podYaml.Pod.Metadata.Annotations.ResourceRegisteredTimestamp == "" {
return false
}
if podYaml.Pod.Metadata.Labels.BusinessNameKey == "" {
return false
}
return slices.Contains(podYaml.Pod.Metadata.Finalizers, FinalizerKeyResource)
})
}
type ProcessWorker struct {
esClient *ESClient
wg *sync.WaitGroup
taskChan <-chan []R
ctx context.Context
}
func NewProcessWorker(esClient *ESClient, wg *sync.WaitGroup, taskChan <-chan []R, ctx context.Context) *ProcessWorker {
return &ProcessWorker{
esClient: esClient,
wg: wg,
taskChan: taskChan,
ctx: ctx,
}
}
func (w *ProcessWorker) Start() {
w.wg.Add(1)
go w.run()
}
func (w *ProcessWorker) run() {
defer w.wg.Done()
const maxConcurrent = 10
sem := make(chan struct{}, maxConcurrent)
for batch := range w.taskChan {
select {
case <-w.ctx.Done():
return
default:
sem <- struct{}{}
resultWg.Add(1)
fmt.Printf("%s Processing batch of %d UIDs\n", time.Now().Format("15:04:05"), len(batch))
go func(b []R) {
defer func() { <-sem }()
w.processBatch(b)
}(batch)
}
}
}
func (w *ProcessWorker) processBatch(batch []R) {
defer resultWg.Done()
if len(batch) == 0 {
return
}
uids := lo.Map(batch, func(r R, _ int) string {
return r.Uid
})
var podYamls []PodYamlR
var err error
maxRetries := 3
for i := 0; i < maxRetries; i++ {
podYamls, err = w.esClient.QueryPodYamlByUIDs(w.ctx, uids)
if err != nil {
fmt.Printf("error: w.esClient.QueryPodYamlByUIDs (attempt %d/%d): %v\n", i+1, maxRetries, err)
}
if err == nil {
break
}
if errors.Is(err, context.Canceled) || errors.Is(err, context.DeadlineExceeded) {
fmt.Printf("Context error, stop retrying: %v\n", err)
return
}
fmt.Printf("Query failed (attempt %d/%d): %v\n", i+1, maxRetries, err)
if i < maxRetries-1 {
time.Sleep(time.Duration(i+1) * 100 * time.Millisecond)
}
}
filtered := FilterPodYamls(podYamls)
fmt.Printf("podYamls: %v, filtered: %v \n", len(podYamls), len(filtered))
if len(filtered) > 0 {
select {
case podYamlChannel <- filtered:
case <-w.ctx.Done():
return
}
}
}
type BizProcessor struct {
sync.RWMutex
sync.WaitGroup
totalCount int64
}
func NewBizProcessor() *BizProcessor {
return &BizProcessor{}
}
func (p *BizProcessor) Process(ctx context.Context) {
p.Add(1)
defer p.Done()
for podYamls := range podYamlChannel {
for _, podYaml := range podYamls {
bizName := podYaml.Pod.Metadata.Labels.BusinessNameKey
if bizName == "" {
continue
}
p.RLock()
counter, ok := bizMap.Load(bizName)
p.RUnlock()
if !ok {
p.Lock()
counter, _ = bizMap.LoadOrStore(bizName, new(int64))
p.Unlock()
}
atomic.AddInt64(counter.(*int64), 1)
atomic.AddInt64(&p.totalCount, 1)
}
fmt.Printf("%s Processed %d pods, total: %d\n",
time.Now().Format("15:04:05"), len(podYamls), atomic.LoadInt64(&p.totalCount))
}
}
func PrintBizStats() {
for range time.NewTicker(5 * time.Second).C {
fmt.Println("=== Biz Stats (live) ===")
bizMap.Range(func(key, value interface{}) bool {
count := atomic.LoadInt64(value.(*int64))
fmt.Printf("%s: %d\n", key, count)
return true
})
}
}
func PrintBizStatsP() {
fmt.Println("\n=== Final Biz Stats ===")
fmt.Println("| 业务名称 | 存量Pod统计数 |\n|-----|-----|")
bizMap.Range(func(key, value interface{}) bool {
count := atomic.LoadInt64(value.(*int64))
fmt.Printf("|%s|%d|\n", key, count)
return true
})
}
type Config struct {
EsUserName string
EsPassword string
EsHost string
SelectIndex string
}
var cfg = new(Config)
func main() {
if err := godotenv.Load(); err != nil {
fmt.Println("Warning: .env file not found, using environment variables")
}
flag.StringVar(&cfg.EsUserName, "es.user", os.Getenv("ES_USER_NAME"), "Elasticsearch username")
flag.StringVar(&cfg.EsPassword, "es.pass", os.Getenv("ES_PASSWORD"), "Elasticsearch password")
flag.StringVar(&cfg.EsHost, "es.host", os.Getenv("ES_HOST"), "Elasticsearch host")
flag.StringVar(&cfg.SelectIndex, "select.index", os.Getenv("SELECT_INDEX"), "select index")
// 解析命令行参数
flag.Parse()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
esClient := NewESClient(cfg)
go PrintBizStats()
bizProcessor := NewBizProcessor()
go bizProcessor.Process(ctx)
bizNames, err := esClient.GetBizNames(ctx)
if err != nil {
panic(err)
}
fmt.Printf("Found %d business names\n", len(bizNames))
taskChan := make(chan []R, ChannelBufferSize)
var workerWg sync.WaitGroup
for i := 0; i < WorkerPoolSize; i++ {
worker := NewProcessWorker(esClient, &workerWg, taskChan, ctx)
worker.Start()
}
go func() {
if cfg.SelectIndex == "slo_trace_data_daily*" {
if err := esClient.ScrollSloTraceDataDailyAddData(ctx, bizNames, taskChan); err != nil {
fmt.Printf("Error scrolling livepod data: %v\n", err)
cancel()
}
return
}
if err := esClient.ScrollLivepodData(ctx, bizNames, taskChan); err != nil {
fmt.Printf("Error scrolling livepod data: %v\n", err)
cancel()
}
}()
workerWg.Wait()
resultWg.Wait()
close(podYamlChannel)
bizProcessor.Wait()
PrintBizStatsP()
fmt.Printf("当前一共查询了: %d\n", scrollCount.Load())
fmt.Println("\nProcessing completed!")
}
func getOptimalSliceCount() int {
// 分片数
shardCount := 5
cpuCores := runtime.NumCPU()
optimalSlices := shardCount
if cpuCores < shardCount {
optimalSlices = cpuCores
}
return optimalSlices
}
|