创建用户
创建root用户
> create user root with password '123456'
> show users
user admin
---- -----
root false给root用户授予admin权限
> grant all privileges to root
> show users
user admin
---- -----
root true也可以在创建的时候直接用户授权为admin
> create user root with password 'root' with all privileges删除用户
> drop user root
> show users
user admin
---- -----用户认证开启
在配置文件中的[http]部分开启用户认证
220 # Determines whether user authentication is enabled over HTTP/HTTPS.
221 auth-enabled = true 然后重启influxdb
[root@influxdb influxdb]# systemctl restart influxdb登录influxdb
[root@influxdb influxdb]# influx -username admin -password admin -port 8086 -host 127.0.0.1
Connected to http://127.0.0.1:8086 version 1.6.0
InfluxDB shell version: 1.6.0 InfluxQL
表操作
查看全部表
> show measurements
name: measurements
name
----
cpu
disk
diskio
example
kernel
mem
processes
swap
system
test查看表的字段（如果要指定database ，请在查询语句末尾加上 on database_name，默认使用当前数据库，不指定measurement名称，将查询当前库的全部measurement）
> show field keys from system
name: system
fieldKey fieldType
-------- ---------
load1 float
load15 float
load5 float
n_cpus integer
n_users integer
uptime integer
uptime_format string查询表的tag
SHOW TAG KEYS" [on_clause] [ from_clause ] [ where_clause ] [ limit_clause ] [ offset_clause ]
> show tag keys from system on telegraf
name: system
tagKey
------
host
panshucheng