InfluxDB系列之一安装及简单运维(未完成,需要继续写)

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

一、安装

wget https://dl.influxdata.com/influxdb/releases/influxdb-1.1.1.x86_64.rpm
sudo yum localinstall influxdb-1.1.1.x86_64.rpm

二、简单操作

一、CRUD
[root@OEL6-38 influxdb]# ls
influx  influxd  init.sh  versions
[root@OEL6-38 influxdb]# /opt/influxdb/influx
Connected to http://localhost:8086 version 0.9.3
InfluxDB shell 0.9.3
> help
Usage:
        connect <host:port>   connect to another node
        auth                  prompt for username and password
        pretty                toggle pretty print
        use <db_name>         set current databases
        format <format>       set the output format: json, csv, or column
        settings              output the current settings for the shell
        exit                  quit the influx shell
 
        show databases        show database names
        show series           show series information
        show measurements     show measurement information
        show tag keys         show tag key information
        show tag values       show tag value information
 
        a full list of influxql commands can be found at:
        https://influxdb.com/docs/v0.9/query_language/spec.html

> show databases;
name: databases
---------------
name
db
yy
testDB

> use yy
Using database yy

> INSERT cpu_load_short,host=server01,region=us-west value=0.64,value2=0.86 1434055562000000000
> INSERT cpu_load_short,host=server02,region=us-west value=0.64,value2=0.86 1434055562000000000
> INSERT cpu_load_short,host=server02,region=us-west value3=0.84,value4=0.96 1434055562000008888

> SHOW MEASUREMENTS      #显示所有表

name: measurements
------------------
name
cpu_load_short

> SHOW FIELD KEYS
name: cpu_load_short
--------------------
fieldKey
value
value2
value3
value4

> SHOW series from cpu_load_short
name: cpu_load_short
--------------------
_key host region
cpu_load_short,host=server01,region=us-west server01 us-west
cpu_load_short,host=server02,region=us-west server02 us-west

> SHOW TAG KEYS FROM cpu_load_short
name: cpu_load_short
--------------------
tagKey
host
region

> SHOW TAG VALUES FROM cpu_load_short with key = "host"
name: hostTagValues
-------------------
host
server01
server02

> SHOW TAG VALUES FROM cpu_load_short WITH KEY IN ("region", "host")
name: hostTagValues
-------------------
host
server01
server02

name: regionTagValues
---------------------
region
us-west

二、查询数据

> SELECT * FROM /.*/ LIMIT 1
name: cpu_load_short
--------------------
time host region value value2 value3 value4
2015-06-11T20:46:02Z server01 us-west 0.64 0.86

参考链接:

https://www.influxdata.com/downloads/

http://www.cnblogs.com/liujianzuo888/articles/6017943.html