一、InfluxDB简介
InfluxDB 是一个开源分布式时序、事件和指标数据库。使用 Go 语言编写,无需外部依赖。其设计目标是实现分布式和水平伸缩扩展。
它有三大特性:
1. Time Series (时间序列):你可以使用与时间有关的相关函数(如最大,最小,求和等)
2. Metrics(度量):你可以实时对大量数据进行计算
3. Eevents(事件):它支持任意的事件数据
特点
- schemaless(无结构),可以是任意数量的列
- Scalable
- min, max, sum, count, mean, median 一系列函数,方便统计
- Native HTTP API, 内置http支持,使用http读写
- Powerful Query Language 类似sql
- Built-in Explorer 自带管理工具
API
InfluxDB 支持两种api方式
- HTTP API
- Protobuf API
二、InfluxDB安装
# cat <<EOF | sudo tee /etc/yum.repos.d/influxdb.repo > [influxdb] > name = InfluxDB Repository - RHEL \$releasever > baseurl = https://repos.influxdata.com/rhel/\$releasever/\$basearch/stable > enabled = 1 > gpgcheck = 1 > gpgkey = https://repos.influxdata.com/influxdb.key > EOF
yum install influxdb #Redhat6 service influxdb start #Redhat7 systemctl start influxdb
三、InfluxDB 命令行简单操作
# influx -precision rfc3339 Connected to http://localhost:8086 version 1.2.0 InfluxDB shell version: 1.2.0 > CREATE DATABASE mydb > show databases; name: databases name ---- _internal mydb > use mydb Using database mydb > insert cpu,host=192.168.62.200,region=kbsonlong value=0.8 > select host,region,value from cpu name: cpu time host region value ---- ---- ------ ----- 2017-03-02T05:44:55.584864069Z 192.168.62.200 kbsonlong 0.8 > INSERT temperature,machine=unit42,type=assembly external=25,internal=37 > SELECT * FROM "temperature" name: temperature time external internal machine type ---- -------- -------- ------- ---- 2017-03-02T05:45:31.933478802Z 25 37 unit42 assembly > SELECT * FROM "cpu" WHERE "value" > 0.7 name: cpu time host region value ---- ---- ------ ----- 2017-03-02T05:44:55.584864069Z 192.168.62.200 kbsonlong 0.8 >
四、配置Web管理界面
InfluxDB管理界面默认端口为8083,默认没有开启。
# netstat -ntlp|grep 808 tcp 0 0 :::8086 :::* LISTEN 2654/influxd tcp 0 0 :::8088 :::* LISTEN 2654/influxd
# vim /etc/influxdb/influxdb.conf
找到[admin]选项 修改enabled = false 为enabled = true
重启InfluxDB服务
# service influxdb restart Stopping influxdb... influxdb process was stopped [ OK ] Starting influxdb... influxdb process was started [ OK ] # netstat -ntlp|grep 808 tcp 0 0 :::8083 :::* LISTEN 3115/influxd tcp 0 0 :::8086 :::* LISTEN 3115/influxd tcp 0 0 :::8088 :::* LISTEN 3115/influxd
时间: 2024-12-20 08:48:47