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loghub_sample.go
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loghub_sample.go
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package main
import (
"fmt"
"math/rand"
"strconv"
"strings"
"time"
sls "github.com/aliyun/aliyun-log-go-sdk"
"github.com/aliyun/aliyun-log-go-sdk/example/util"
"github.com/gogo/protobuf/proto"
)
func main() {
fmt.Println("loghub sample begin")
var err error
offset := 0
fmt.Println("project list: ")
for {
projects, count, total, err := util.Client.ListProjectV2(offset, 100)
if err != nil {
panic(err)
}
for _, project := range projects {
fmt.Printf(" name : %s, description : %s, region : %s, ctime : %s, mtime : %s\n",
project.Name,
project.Description,
project.Region,
project.CreateTime,
project.LastModifyTime)
}
if offset+count >= total {
break
}
offset += count
}
beginTime := uint32(time.Now().Unix())
rand.Seed(int64(beginTime))
logstoreName := "test-logstore"
var retryTimes int
var logstore *sls.LogStore
for retryTimes = 0; ; retryTimes++ {
if retryTimes > 5 {
return
}
logstore, err = util.Client.GetLogStore(util.ProjectName, logstoreName)
if err != nil {
fmt.Printf("GetLogStore fail, retry:%d, err:%v\n", retryTimes, err)
if strings.Contains(err.Error(), sls.PROJECT_NOT_EXIST) {
return
} else if strings.Contains(err.Error(), sls.LOGSTORE_NOT_EXIST) {
err = util.Client.CreateLogStore(util.ProjectName, logstoreName, 1, 2, true, 16)
if err != nil {
fmt.Printf("CreateLogStore fail, err: %s ", err.Error())
} else {
fmt.Println("CreateLogStore success")
}
}
} else {
fmt.Printf("GetLogStore success, retry:%d, name: %s, ttl: %d, shardCount: %d, createTime: %d, lastModifyTime: %d\n", retryTimes, logstore.Name, logstore.TTL, logstore.ShardCount, logstore.CreateTime, logstore.LastModifyTime)
break
}
time.Sleep(200 * time.Millisecond)
}
// put logs to logstore
for loggroupIdx := 0; loggroupIdx < 2; loggroupIdx++ {
logs := []*sls.Log{}
for logIdx := 0; logIdx < 100; logIdx++ {
content := []*sls.LogContent{}
for colIdx := 0; colIdx < 10; colIdx++ {
content = append(content, &sls.LogContent{
Key: proto.String(fmt.Sprintf("col_%d", colIdx)),
Value: proto.String(fmt.Sprintf("loggroup idx: %d, log idx: %d, col idx: %d, value: %d", loggroupIdx, logIdx, colIdx, rand.Intn(10000000))),
})
}
log := &sls.Log{
Time: proto.Uint32(uint32(time.Now().Unix())),
Contents: content,
}
logs = append(logs, log)
}
loggroup := &sls.LogGroup{
Topic: proto.String(""),
Source: proto.String("10.230.201.117"),
Logs: logs,
}
// PostLogStoreLogs API Ref: https://intl.aliyun.com/help/doc-detail/29026.htm
for retryTimes = 0; retryTimes < 10; retryTimes++ {
err := util.Client.PutLogs(util.ProjectName, logstoreName, loggroup)
if err == nil {
fmt.Printf("PutLogs success, retry: %d\n", retryTimes)
break
} else {
fmt.Printf("PutLogs fail, retry: %d, err: %s\n", retryTimes, err)
//handle exception here, you can add retryable erorrCode, set appropriate put_retry
if strings.Contains(err.Error(), sls.WRITE_QUOTA_EXCEED) || strings.Contains(err.Error(), sls.PROJECT_QUOTA_EXCEED) || strings.Contains(err.Error(), sls.SHARD_WRITE_QUOTA_EXCEED) {
//mayby you should split shard
time.Sleep(1000 * time.Millisecond)
} else if strings.Contains(err.Error(), sls.INTERNAL_SERVER_ERROR) || strings.Contains(err.Error(), sls.SERVER_BUSY) {
time.Sleep(200 * time.Millisecond)
}
}
}
time.Sleep(200 * time.Millisecond)
}
// pull logs from logstore
var shards []*sls.Shard
for retryTimes = 0; ; retryTimes++ {
if retryTimes > 5 {
return
}
shards, err = util.Client.ListShards(util.ProjectName, logstoreName)
if err != nil {
fmt.Printf("ListShards fail, retry: %d, err:%v\n", retryTimes, err)
} else {
fmt.Printf("ListShards success\n")
break
}
time.Sleep(200 * time.Millisecond)
}
var beginCursor string
var endCursor string
var nextCursor string
var loggrouplist *sls.LogGroupList
for _, sh := range shards {
if sh.ShardID == 0 {
// sample of pulllogs from begin
// GetCursor API Ref: https://intl.aliyun.com/help/doc-detail/29024.htm
for retryTimes = 0; ; retryTimes++ {
if retryTimes > 5 {
return
}
beginCursor, err = util.Client.GetCursor(util.ProjectName, logstoreName, sh.ShardID, "begin")
if err != nil {
fmt.Printf("GetCursor(begin) fail, retry: %d, err:%v\n", retryTimes, err)
} else {
fmt.Printf("GetCursor(begin) success\n")
break
}
time.Sleep(200 * time.Millisecond)
}
for retryTimes = 0; ; retryTimes++ {
if retryTimes > 5 {
return
}
endCursor, err = util.Client.GetCursor(util.ProjectName, logstoreName, sh.ShardID, "end")
if err != nil {
fmt.Printf("GetCursor(end) fail, retry: %d, err:%v\n", retryTimes, err)
} else {
fmt.Printf("GetCursor(end) success\n")
break
}
time.Sleep(200 * time.Millisecond)
}
// PullLogs API Ref: https://intl.aliyun.com/help/doc-detail/29025.htm
for retryTimes = 0; ; retryTimes++ {
if retryTimes > 100 {
return
}
loggrouplist, nextCursor, err = util.Client.PullLogs(util.ProjectName, logstoreName, sh.ShardID, beginCursor, endCursor, 100)
if err == nil {
fmt.Printf("PullLogs success, retry: %d\n", retryTimes)
break
} else {
fmt.Printf("PullLogs fail, retry: %d, err: %s\n", retryTimes, err)
//handle exception here, you can add retryable erorrCode, set appropriate put_retry
if strings.Contains(err.Error(), sls.READ_QUOTA_EXCEED) || strings.Contains(err.Error(), sls.PROJECT_QUOTA_EXCEED) || strings.Contains(err.Error(), sls.SHARD_READ_QUOTA_EXCEED) {
//mayby you should split shard
time.Sleep(1000 * time.Millisecond)
} else if strings.Contains(err.Error(), sls.INTERNAL_SERVER_ERROR) || strings.Contains(err.Error(), sls.SERVER_BUSY) {
time.Sleep(200 * time.Millisecond)
}
}
}
fmt.Printf("shard: %d, begin_cursor: %s, end_cursor: %s, next_cursor: %s\n", sh.ShardID, beginCursor, endCursor, nextCursor)
for _, loggroup := range loggrouplist.LogGroups {
for _, log := range loggroup.Logs {
for _, content := range log.Contents {
fmt.Printf("key:%s, value:%s\n", content.GetKey(), content.GetValue())
}
}
}
} else {
// sample of pulllogs from setted time
for retryTimes = 0; ; retryTimes++ {
if retryTimes > 5 {
return
}
beginCursor, err = util.Client.GetCursor(util.ProjectName, logstoreName, sh.ShardID, strconv.Itoa(int(beginTime)+2))
if err != nil {
fmt.Printf("GetCursor fail, retry: %d, err:%v\n", retryTimes, err)
} else {
fmt.Printf("GetCursor success\n")
break
}
time.Sleep(200 * time.Millisecond)
}
for {
for retryTimes = 0; ; retryTimes++ {
if retryTimes > 100 {
return
}
loggrouplist, nextCursor, err = util.Client.PullLogs(util.ProjectName, logstoreName, sh.ShardID, beginCursor, "", 2)
if err == nil {
fmt.Printf("PullLogs success, retry: %d\n", retryTimes)
break
} else {
fmt.Printf("PullLogs fail, retry: %d, err: %s\n", retryTimes, err)
//handle exception here, you can add retryable erorrCode, set appropriate put_retry
if strings.Contains(err.Error(), sls.READ_QUOTA_EXCEED) || strings.Contains(err.Error(), sls.PROJECT_QUOTA_EXCEED) || strings.Contains(err.Error(), sls.SHARD_READ_QUOTA_EXCEED) {
//mayby you should split shard
time.Sleep(1000 * time.Millisecond)
} else if strings.Contains(err.Error(), sls.INTERNAL_SERVER_ERROR) || strings.Contains(err.Error(), sls.SERVER_BUSY) {
time.Sleep(200 * time.Millisecond)
}
}
}
fmt.Printf("shard: %d, begin_cursor: %s, next_cursor: %s, len(loggrouplist.LogGroups): %d\n", sh.ShardID, beginCursor, nextCursor, len(loggrouplist.LogGroups))
if len(loggrouplist.LogGroups) == 0 {
// means no more data in this shard, you can break out or sleep to wait new data
break
} else {
for _, loggroup := range loggrouplist.LogGroups {
for _, log := range loggroup.Logs {
for _, content := range log.Contents {
fmt.Printf("key:%s, value:%s\n", content.GetKey(), content.GetValue())
}
}
}
beginCursor = nextCursor
}
}
}
}
fmt.Println("loghub sample end")
}