1.首先初始化conf配置把kafka和ES的地址配置好還有一個日志方便查看
配置信息如下 用到的庫是
github.com/astaxie/beego/config [logs] log_level = debug log_path = "./logs/log_transfer.log" [kafka] server_addr = 192.168.0.134:9092 topic = nginx_log [ES] addr = http://192.168.0.134:9200/
2.讀取conf配置存取進(jìn)結(jié)構(gòu)體
type LogConfig struct { kafkaAddr string ESAddr string LogPath string LogLevel string Topic string } var ( logConfig *LogConfig )
3.讀取conf配置代碼如下
func initConfig(conftype string,filename string)(err error) { conf, err := config. NewConfig(conftype,filename) if err != nil { fmt. Println( "new config faild,err:",err) return } logConfig = LogConfig{} logConfig.LogLevel = conf. String( "logs::log_level") if len(logConfig.LogLevel) == 0 { logConfig.LogLevel = "debug" } logConfig.LogPath = conf. String( "logs::log_path") if len(logConfig.LogPath) == 0 { logConfig.LogPath = "./logs" } logConfig.kafkaAddr = conf. String( "kafka::server_addr") if len(logConfig.kafkaAddr) == 0 { err = fmt. Errorf( "invalid kafka addr err") return } logConfig.ESAddr = conf. String( "ES::addr") if len(logConfig.ESAddr) == 0 { err = fmt. Errorf( "invalid ES addr err") return } logConfig.Topic = conf. String( "kafka::topic") if len(logConfig.Topic) == 0 { err = fmt. Errorf( "invalid topic addr err") return } return }
4.完成了initConfig的初始化
5.初始化initLogger
func convertLogLevel(level string) int { switch(level) { case "debug": return logs.LevelDebug case "warn": return logs.LevelWarn case "info": return logs.LevelInfo case "trace": return logs.LevelTrace } return logs.LevelDebug } func initLogger(logpath string, logLevel string) (err error) { config := make( map[ string] interface{}) config[ "filename"] = logpath config[ "level"] = convertLogLevel(logLevel) configStr, err := json. Marshal(config) if err!= nil { fmt. Println( "marshal failed,err:",err) return } logs. SetLogger(logs.AdapterFile, string(configStr)) return }
6.初始化kafka
type KafkaClient struct { client sarama.Consumer addr string topic string wg sync.WaitGroup } var ( kafkaClient *KafkaClient ) func initKafKa(addr string,topic string)(err error) { kafkaClient = KafkaClient{} consumer, err := sarama. NewConsumer(strings. Split(addr, ","), nil) if err != nil { logs. Error( "Failed to strat consumer :",err) return } kafkaClient.client = consumer kafkaClient.addr = addr kafkaClient.topic = topic return }
7.初始化ES
gopkg.in/olivere/elastic.v2 // 這個是操作ES的庫
type LogMessage struct { App string Topic string Message string } var ( esClient *elastic.Client ) func initES(addr string)(err error) { client, err := elastic. NewClient(elastic. SetSniff( false),elastic. SetURL(addr)) if err != nil { fmt. Println( "connect es error",err) return } esClient = client return }
8.干活把kafka的數(shù)據(jù)寫入ES
github.com/Shopify/sarama 這個是操作kafka的驅(qū)動庫
func run()(err error) { fmt. Println( "run") partitionList, err := kafkaClient.client. Partitions(kafkaClient.topic) if err != nil { logs. Error( "ini failed ,err:%v",err) fmt. Printf( "ini failed ,err:%v",err) return } for partition := range partitionList { fmt. Println( "for進(jìn)入") pc, errRet := kafkaClient.client. ConsumePartition(kafkaClient.topic, int32(partition),sarama.OffsetNewest) if errRet != nil { err = errRet logs. Error( "Failed to start consumer for partition %d: %s \n ",partition,err) fmt. Printf( "Failed to start consumer for partition %d: %s \n ",partition,err) return } defer pc. AsyncClose() fmt. Println( "馬上進(jìn)入?yún)f(xié)程") kafkaClient.wg. Add( 1) go func(pc sarama.PartitionConsumer){ fmt. Println( "進(jìn)來了") for msg := range pc. Messages() { fmt. Println( "func執(zhí)行") logs. Debug( "Partition:%d,Offset:%d,key:%s,value:%s",msg.Partition,msg.Offset, string(msg.Key), string(msg.Value)) //fmt.Println() err = sendToES(kafkaClient.topic,msg.Value) if err != nil { logs. Warn( "send to es failed,err:%v",err) } } kafkaClient.wg. Done() }(pc) } kafkaClient.wg. Wait() fmt. Println( "協(xié)程執(zhí)行完畢") return }
上面代碼是讀kafka消費(fèi)數(shù)據(jù)通過sendToES這個函數(shù)發(fā)送至ES里面
sendToES代碼如下
func sendToES(topic string,data [] byte) (err error) { msg := LogMessage{} msg.Topic = topic msg.Message = string(data) _, err = esClient. Index(). Index(topic). Type(topic). BodyJson(msg). Do() if err != nil { return } return }
Index就是索引名稱
index().type().bodyjson().do()這樣的寫法是鏈?zhǔn)綀?zhí)行操作
9.寫完了基本操作后 再寫一個模擬寫入數(shù)據(jù)進(jìn)kafka的數(shù)據(jù) 代碼如下
func main() { config := sarama. NewConfig() config.Producer.RequiredAcks = sarama.WaitForAll config.Producer.Partitioner = sarama.NewRandomPartitioner config.Producer.Return.Successes = true client, err := sarama. NewSyncProducer([] string{ "127.0.0.1:9092"}, config) if err != nil { fmt. Println( "producer close,err:", err) return } defer client. Close() var n int= 0 for { n++ msg := sarama.ProducerMessage{} msg.Topic = "nginx_log" msg.Value = sarama. StringEncoder( "this is a good test,hello maomaoChong!!," + strconv. Itoa(n)) pid, offset, err := client. SendMessage(msg) if err != nil { fmt. Println( "send message failed,", err) return } fmt. Printf( "pid:%v offset:%v \n ", pid, offset) time. Sleep(time.Second * 2) } }
這個就是生產(chǎn)者往kafka里面寫入數(shù)據(jù)進(jìn)去消費(fèi)
10.我們啟動我們的kafka 注意kafka依賴于zookeeper 先啟動ZK然后啟動kafka
我這里用的是zookeeper-3.4.12網(wǎng)上有下載
啟動ZK
ZK已經(jīng)成功啟動
11.啟動kafka 我這里是kafka_2.11-1.1.0
.\bin\windows\kafka-server-start.bat .\config\server.properties
kafka已經(jīng)跑起來了
12.把kafka消費(fèi)測試端也啟動
.\bin\windows\kafka-console-consumer.bat --topic nginx_log --zookeeper 127.0.0.1 2181
消費(fèi)端啟動成功 一直等待數(shù)據(jù)進(jìn)來消費(fèi)
13.然后我們把ES 和Kib 都啟動了
這是我們的ES版本是5.5.1的 已經(jīng)跑起來了 接著啟動我們的kib
kib里面有個配置config下面的叫kibana.yml里面設(shè)置好ES的地址和端口就處于監(jiān)聽ES狀態(tài)
啟動kib有點(diǎn)慢 稍微等一下就好
此時啟動好了kib
14.測試kib是否啟動
默認(rèn)地址是http://localhost:5601
進(jìn)入成功 確定沒問題
15.編譯我們的代碼 寫數(shù)據(jù)進(jìn)kafka
從上面看我們知道一個再寫 一個再消費(fèi)
16.編譯運(yùn)行我們把kafka寫入進(jìn)ES里面的代碼
運(yùn)行了 這里就把kafka消費(fèi)的數(shù)據(jù) 寫入進(jìn)ES里面
17.我們看一下數(shù)據(jù)是否有 進(jìn)入kib
我們看到有數(shù)據(jù)了 已經(jīng)成功了~
以上為個人經(jīng)驗,希望能給大家一個參考,也希望大家多多支持腳本之家。如有錯誤或未考慮完全的地方,望不吝賜教。
標(biāo)簽:宜春 武漢 保定 河池 松原 黔西 泰安 鷹潭
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