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sender.go
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sender.go
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package backend
import (
"bytes"
"time"
"github.com/didi/nightingale/src/dataobj"
"github.com/didi/nightingale/src/model"
"github.com/didi/nightingale/src/modules/transfer/cache"
"github.com/didi/nightingale/src/toolkits/stats"
"github.com/didi/nightingale/src/toolkits/str"
client "github.com/influxdata/influxdb/client/v2"
"github.com/toolkits/pkg/concurrent/semaphore"
"github.com/toolkits/pkg/container/list"
"github.com/toolkits/pkg/logger"
)
// send
const (
DefaultSendTaskSleepInterval = time.Millisecond * 50 //默认睡眠间隔为50ms
MaxSendRetry = 10
)
var (
MinStep int //最小上报周期,单位sec
)
func startSendTasks() {
tsdbConcurrent := Config.WorkerNum
if tsdbConcurrent < 1 {
tsdbConcurrent = 1
}
judgeConcurrent := Config.WorkerNum
if judgeConcurrent < 1 {
judgeConcurrent = 1
}
influxdbConcurrent := Config.Influxdb.WorkerNum
if influxdbConcurrent < 1 {
influxdbConcurrent = 1
}
openTsdbConcurrent := Config.OpenTsdb.WorkerNum
if openTsdbConcurrent < 1 {
openTsdbConcurrent = 1
}
if Config.Enabled {
for node, item := range Config.ClusterList {
for _, addr := range item.Addrs {
queue := TsdbQueues[node+addr]
go Send2TsdbTask(queue, node, addr, tsdbConcurrent)
}
}
}
if Config.Enabled {
judgeQueue := JudgeQueues.GetAll()
for instance, queue := range judgeQueue {
go Send2JudgeTask(queue, instance, judgeConcurrent)
}
}
if Config.Influxdb.Enabled {
go send2InfluxdbTask(influxdbConcurrent)
}
if Config.OpenTsdb.Enabled {
go send2OpenTsdbTask(openTsdbConcurrent)
}
}
func Send2TsdbTask(Q *list.SafeListLimited, node, addr string, concurrent int) {
batch := Config.Batch // 一次发送,最多batch条数据
Q = TsdbQueues[node+addr]
sema := semaphore.NewSemaphore(concurrent)
for {
items := Q.PopBackBy(batch)
count := len(items)
if count == 0 {
time.Sleep(DefaultSendTaskSleepInterval)
continue
}
tsdbItems := make([]*dataobj.TsdbItem, count)
stats.Counter.Set("points.out.tsdb", count)
for i := 0; i < count; i++ {
tsdbItems[i] = items[i].(*dataobj.TsdbItem)
logger.Debug("send to tsdb->: ", tsdbItems[i])
}
//控制并发
sema.Acquire()
go func(addr string, tsdbItems []*dataobj.TsdbItem, count int) {
defer sema.Release()
resp := &dataobj.SimpleRpcResponse{}
var err error
sendOk := false
for i := 0; i < 3; i++ { //最多重试3次
err = TsdbConnPools.Call(addr, "Tsdb.Send", tsdbItems, resp)
if err == nil {
sendOk = true
break
}
time.Sleep(time.Millisecond * 10)
}
if !sendOk {
stats.Counter.Set("points.out.tsdb.err", count)
logger.Errorf("send %v to tsdb %s:%s fail: %v", tsdbItems, node, addr, err)
} else {
logger.Debugf("send to tsdb %s:%s ok", node, addr)
}
}(addr, tsdbItems, count)
}
}
// Push2TsdbSendQueue pushes data to a TSDB instance which depends on the consistent ring.
func Push2TsdbSendQueue(items []*dataobj.MetricValue) {
errCnt := 0
for _, item := range items {
tsdbItem := convert2TsdbItem(item)
stats.Counter.Set("tsdb.queue.push", 1)
node, err := TsdbNodeRing.GetNode(item.PK())
if err != nil {
logger.Warningf("get tsdb node error: %v", err)
continue
}
cnode := Config.ClusterList[node]
for _, addr := range cnode.Addrs {
Q := TsdbQueues[node+addr]
// 队列已满
if !Q.PushFront(tsdbItem) {
errCnt += 1
}
}
}
// statistics
if errCnt > 0 {
stats.Counter.Set("tsdb.queue.err", errCnt)
logger.Error("Push2TsdbSendQueue err num: ", errCnt)
}
}
func Send2JudgeTask(Q *list.SafeListLimited, addr string, concurrent int) {
batch := Config.Batch
sema := semaphore.NewSemaphore(concurrent)
for {
items := Q.PopBackBy(batch)
count := len(items)
if count == 0 {
time.Sleep(DefaultSendTaskSleepInterval)
continue
}
judgeItems := make([]*dataobj.JudgeItem, count)
stats.Counter.Set("points.out.judge", count)
for i := 0; i < count; i++ {
judgeItems[i] = items[i].(*dataobj.JudgeItem)
logger.Debug("send to judge: ", judgeItems[i])
}
sema.Acquire()
go func(addr string, judgeItems []*dataobj.JudgeItem, count int) {
defer sema.Release()
resp := &dataobj.SimpleRpcResponse{}
var err error
sendOk := false
for i := 0; i < MaxSendRetry; i++ {
err = JudgeConnPools.Call(addr, "Judge.Send", judgeItems, resp)
if err == nil {
sendOk = true
break
}
logger.Warningf("send judge %s fail: %v", addr, err)
time.Sleep(time.Millisecond * 10)
}
if !sendOk {
stats.Counter.Set("points.out.judge.err", count)
for _, item := range judgeItems {
logger.Errorf("send %v to judge %s fail: %v", item, addr, err)
}
}
}(addr, judgeItems, count)
}
}
func Push2JudgeSendQueue(items []*dataobj.MetricValue) {
errCnt := 0
for _, item := range items {
key := str.PK(item.Metric, item.Endpoint)
stras := cache.StraMap.GetByKey(key)
for _, stra := range stras {
if !TagMatch(stra.Tags, item.TagsMap) {
continue
}
judgeItem := &dataobj.JudgeItem{
Endpoint: item.Endpoint,
Metric: item.Metric,
Value: item.Value,
Timestamp: item.Timestamp,
DsType: item.CounterType,
Tags: item.Tags,
TagsMap: item.TagsMap,
Step: int(item.Step),
Sid: stra.Id,
Extra: item.Extra,
}
q, exists := JudgeQueues.Get(stra.JudgeInstance)
if exists {
if !q.PushFront(judgeItem) {
errCnt += 1
}
}
}
}
stats.Counter.Set("judge.queue.err", errCnt)
}
// 打到 Tsdb 的数据,要根据 rrdtool 的特定 来限制 step、counterType、timestamp
func convert2TsdbItem(d *dataobj.MetricValue) *dataobj.TsdbItem {
item := &dataobj.TsdbItem{
Endpoint: d.Endpoint,
Metric: d.Metric,
Value: d.Value,
Timestamp: d.Timestamp,
Tags: d.Tags,
TagsMap: d.TagsMap,
Step: int(d.Step),
Heartbeat: int(d.Step) * 2,
DsType: dataobj.GAUGE,
Min: "U",
Max: "U",
}
return item
}
func alignTs(ts int64, period int64) int64 {
return ts - ts%period
}
func TagMatch(straTags []model.Tag, tag map[string]string) bool {
for _, stag := range straTags {
if _, exists := tag[stag.Tkey]; !exists {
return false
}
var match bool
if stag.Topt == "=" { //当前策略 tagkey 对应的 tagv
for _, v := range stag.Tval {
if tag[stag.Tkey] == v {
match = true
break
}
}
} else {
match = true
for _, v := range stag.Tval {
if tag[stag.Tkey] == v {
match = false
return match
}
}
}
if !match {
return false
}
}
return true
}
type InfluxClient struct {
Client client.Client
Database string
Precision string
}
func NewInfluxdbClient() (*InfluxClient, error) {
c, err := client.NewHTTPClient(client.HTTPConfig{
Addr: Config.Influxdb.Address,
Username: Config.Influxdb.Username,
Password: Config.Influxdb.Password,
Timeout: time.Millisecond * time.Duration(Config.Influxdb.Timeout),
})
if err != nil {
return nil, err
}
return &InfluxClient{
Client: c,
Database: Config.Influxdb.Database,
Precision: Config.Influxdb.Precision,
}, nil
}
func (c *InfluxClient) Send(items []*dataobj.InfluxdbItem) error {
bp, err := client.NewBatchPoints(client.BatchPointsConfig{
Database: c.Database,
Precision: c.Precision,
})
if err != nil {
logger.Error("create batch points error: ", err)
return err
}
for _, item := range items {
pt, err := client.NewPoint(item.Measurement, item.Tags, item.Fields, time.Unix(item.Timestamp, 0))
if err != nil {
logger.Error("create new points error: ", err)
continue
}
bp.AddPoint(pt)
}
return c.Client.Write(bp)
}
// 将原始数据插入到influxdb缓存队列
func Push2InfluxdbSendQueue(items []*dataobj.MetricValue) {
errCnt := 0
for _, item := range items {
influxdbItem := convert2InfluxdbItem(item)
isSuccess := InfluxdbQueue.PushFront(influxdbItem)
if !isSuccess {
errCnt += 1
}
}
stats.Counter.Set("influxdb.queue.err", errCnt)
}
func convert2InfluxdbItem(d *dataobj.MetricValue) *dataobj.InfluxdbItem {
t := dataobj.InfluxdbItem{Tags: make(map[string]string), Fields: make(map[string]interface{})}
for k, v := range d.TagsMap {
t.Tags[k] = v
}
t.Tags["endpoint"] = d.Endpoint
t.Measurement = d.Metric
t.Fields["value"] = d.Value
t.Timestamp = d.Timestamp
return &t
}
func send2InfluxdbTask(concurrent int) {
batch := Config.Influxdb.Batch // 一次发送,最多batch条数据
retry := Config.Influxdb.MaxRetry
addr := Config.Influxdb.Address
sema := semaphore.NewSemaphore(concurrent)
var err error
c, err := NewInfluxdbClient()
defer c.Client.Close()
if err != nil {
logger.Errorf("init influxdb client fail: %v", err)
return
}
for {
items := InfluxdbQueue.PopBackBy(batch)
count := len(items)
if count == 0 {
time.Sleep(DefaultSendTaskSleepInterval)
continue
}
influxdbItems := make([]*dataobj.InfluxdbItem, count)
for i := 0; i < count; i++ {
influxdbItems[i] = items[i].(*dataobj.InfluxdbItem)
stats.Counter.Set("points.out.influxdb", 1)
logger.Debug("send to influxdb: ", influxdbItems[i])
}
// 同步Call + 有限并发 进行发送
sema.Acquire()
go func(addr string, influxdbItems []*dataobj.InfluxdbItem, count int) {
defer sema.Release()
sendOk := false
for i := 0; i < retry; i++ {
err = c.Send(influxdbItems)
if err == nil {
sendOk = true
break
}
logger.Warningf("send influxdb fail: %v", err)
time.Sleep(time.Millisecond * 10)
}
if !sendOk {
stats.Counter.Set("points.out.influxdb.err", count)
logger.Errorf("send %v to influxdb %s fail: %v", influxdbItems, addr, err)
} else {
logger.Debugf("send to influxdb %s ok", addr)
}
}(addr, influxdbItems, count)
}
}
// 将原始数据入到tsdb发送缓存队列
func Push2OpenTsdbSendQueue(items []*dataobj.MetricValue) {
errCnt := 0
for _, item := range items {
tsdbItem := convert2OpenTsdbItem(item)
isSuccess := OpenTsdbQueue.PushFront(tsdbItem)
if !isSuccess {
errCnt += 1
}
}
stats.Counter.Set("opentsdb.queue.err", errCnt)
}
func send2OpenTsdbTask(concurrent int) {
batch := Config.OpenTsdb.Batch // 一次发送,最多batch条数据
retry := Config.OpenTsdb.MaxRetry
addr := Config.OpenTsdb.Address
sema := semaphore.NewSemaphore(concurrent)
for {
items := OpenTsdbQueue.PopBackBy(batch)
count := len(items)
if count == 0 {
time.Sleep(DefaultSendTaskSleepInterval)
continue
}
var openTsdbBuffer bytes.Buffer
for i := 0; i < count; i++ {
tsdbItem := items[i].(*dataobj.OpenTsdbItem)
openTsdbBuffer.WriteString(tsdbItem.OpenTsdbString())
openTsdbBuffer.WriteString("\n")
stats.Counter.Set("points.out.opentsdb", 1)
logger.Debug("send to opentsdb: ", tsdbItem)
}
// 同步Call + 有限并发 进行发送
sema.Acquire()
go func(addr string, openTsdbBuffer bytes.Buffer, count int) {
defer sema.Release()
var err error
sendOk := false
for i := 0; i < retry; i++ {
err = OpenTsdbConnPoolHelper.Send(openTsdbBuffer.Bytes())
if err == nil {
sendOk = true
break
}
logger.Warningf("send opentsdb %s fail: %v", addr, err)
time.Sleep(100 * time.Millisecond)
}
if !sendOk {
stats.Counter.Set("points.out.opentsdb.err", count)
for _, item := range items {
logger.Errorf("send %v to opentsdb %s fail: %v", item, addr, err)
}
} else {
logger.Debugf("send to opentsdb %s ok", addr)
}
}(addr, openTsdbBuffer, count)
}
}
func convert2OpenTsdbItem(d *dataobj.MetricValue) *dataobj.OpenTsdbItem {
t := dataobj.OpenTsdbItem{Tags: make(map[string]string)}
for k, v := range d.TagsMap {
t.Tags[k] = v
}
t.Tags["endpoint"] = d.Endpoint
t.Metric = d.Metric
t.Timestamp = d.Timestamp
t.Value = d.Value
return &t
}