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本文主要研究一下如何将springboot2的metrics输出到influxdb

maven

                
     
      org.springframework.boot
                 
     
      spring-boot-starter-actuator
             
            
                
     
      io.micrometer
                 
     
      micrometer-registry-influx
             
    

配置

management:  metrics:    export:      influx:        enabled: true        db: springboot        uri: http://192.168.99.100:8086#        user-name:#        password:        connect-timeout: 1s        read-timeout: 10s        auto-create-db: true        step: 1m        num-threads: 2        consistency: one        compressed: true        batch-size: 10000

influx

docker run -d --name influx -p 8086:8086 influxdb

启动之后创建数据库

• 命令行创建

docker exec -it influx influxcreate database springboot

• rest接口创建

curl -i -X POST http://192.168.99.100:8086/query --data-urlencode "q=CREATE DATABASE springboot"

返回

HTTP/1.1 200 OKContent-Type: application/jsonRequest-Id: f3ce7449-7227-11e8-8002-000000000000X-Influxdb-Build: OSSX-Influxdb-Version: 1.5.3X-Request-Id: f3ce7449-7227-11e8-8002-000000000000Date: Sun, 17 Jun 2018 12:14:15 GMTTransfer-Encoding: chunked{"results":[{"statement_id":0}]}

或者直接配置文件指定auto-create-db=true，就无需额外创建

查看

• 命令行查看

docker exec -it influx influx> use springboot> show MEASUREMENTSname: measurementsname----jvm.buffer.countjvm.buffer.memory.usedjvm.buffer.total.capacityjvm.classes.loadedjvm.classes.unloadedjvm.gc.live.data.sizejvm.gc.max.data.sizejvm.gc.memory.allocatedjvm.gc.memory.promotedjvm.gc.pausejvm.memory.committedjvm.memory.maxjvm.memory.usedjvm.threads.daemonjvm.threads.livejvm.threads.peaklogback.eventsprocess.cpu.usageprocess.files.maxprocess.files.openprocess.start.timeprocess.uptimesystem.cpu.countsystem.cpu.usagesystem.load.average.1m

查看具体指标

> show series from "http.server.requests"key---http.server.requests,exception=None,method=GET,metric_type=histogram,status=200,uri=/actuator/health> select * from "http.server.requests"name: http.server.requeststime                count exception mean      method metric_type status sum       upper     uri----                ----- --------- ----      ------ ----------- ------ ---       -----     ---1529238292912000000 0     None      0         GET    histogram   200    0         72.601487 /actuator/health1529238352888000000 2     None      39.154634 GET    histogram   200    78.309267 72.601487 /actuator/health1529238412886000000 0     None      0         GET    histogram   200    0         72.601487 /actuator/health1529238472885000000 0     None      0         GET    histogram   200    0         0         /actuator/health1529238532882000000 0     None      0         GET    histogram   200    0         0         /actuator/health1529238592879000000 0     None      0         GET    histogram   200    0         0         /actuator/health

注意这里表名要加引号

• rest接口查看

curl -G 'http://192.168.99.100:8086/query?pretty=true' --data-urlencode "db=springboot" --data-urlencode "q=SELECT \"*\" FROM \"http.server.requests\""{    "results": [        {            "statement_id": 0        }    ]}

小结

springboot2使用micrometer作为metrics组件，其提供了对influxdb的支持，只需要引入micrometer-registry-influx，然后进行配置即可。

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