CentOS 7 安装InfluxDB V2.0.4

从服务名和端口看V2和V1版本，不建议安装在同一台计算机。

InfluxDB版本	服务名	数据端口号	可执行文件
V1	Influxdb	8086	同名
V2	Influx	9999	同名

 

如果之前设置了1.x的路径，由于2.0的可执行文件与1.x一致，此时可以通过替换或重命名文件实现。

Both InfluxDB 1.x and 2.x include influx and influxd binaries. If InfluxDB 1.x binaries are already in your $PATH, run the 2.0 binaries in place or rename them before putting them in your $PATH. If you rename the binaries, all references to influx and influxd in this documentation refer to your renamed binaries.

 

2.0不提供Windows版本了，提供MacOS、Linux及Docker Image

 

删除1.8.4版本的InfluxDB

[root@localhost ~]# yum remove influxdb

已加载插件：fastestmirror, langpacks

正在解决依赖关系

--> 正在检查事务

---> 软件包 influxdb.x86_64.0.1.8.4-1 将被 删除

--> 解决依赖关系完成

rabbitmq_erlang/x86_64/signature                                                                 |  833 B  00:00:00    

rabbitmq_erlang/x86_64/signature                                                                 | 1.0 kB  00:00:00 !!!

rabbitmq_erlang-source/signature                                                                 |  819 B  00:00:00    

rabbitmq_erlang-source/signature                                                                 |  951 B  00:00:00 !!!

 

依赖关系解决

 

==========================================================================

 Package                     架构                      版本                          源                            大小

==========================================================================

正在删除:

 influxdb                    x86_64                    1.8.4-1                       installed                    166 M

 

事务概要

============================================================================

移除  1 软件包

 

安装大小：166 M

是否继续？[y/N]：y

Downloading packages:

Running transaction check

Running transaction test

Transaction test succeeded

Running transaction

  正在删除    : influxdb-1.8.4-1.x86_64                                                                             1/1

警告：/etc/influxdb/influxdb.conf 已另存为 /etc/influxdb/influxdb.conf.rpmsave

Removed symlink /etc/systemd/system/multi-user.target.wants/influxdb.service.

Removed symlink /etc/systemd/system/influxd.service.

  验证中      : influxdb-1.8.4-1.x86_64                                                                             1/1

 

删除:

  influxdb.x86_64 0:1.8.4-1                                                                                            

 

完毕！

 

wget https://dl.influxdata.com/influxdb/releases/influxdb2-2.0.4.x86_64.rpm

yum localinstall influxdb2-2.0.4.x86_64.rpm

 

[root@localhost ~]# yum localinstall influxdb2-2.0.4.x86_64.rpm

已加载插件：fastestmirror, langpacks

正在检查 influxdb2-2.0.4.x86_64.rpm: influxdb2-2.0.4-1.x86_64

influxdb2-2.0.4.x86_64.rpm 将被安装

正在解决依赖关系

--> 正在检查事务

---> 软件包 influxdb2.x86_64.0.2.0.4-1 将被 安装

--> 解决依赖关系完成

 

依赖关系解决

 

====================================================================================

 Package                   架构                   版本                    源                                       大小

====================================================================================

正在安装:

 influxdb2                 x86_64                 2.0.4-1                 /influxdb2-2.0.4.x86_64                 126 M

 

事务概要

================================================================================

安装  1 软件包

 

总计：126 M

安装大小：126 M

Is this ok [y/d/N]: y

Downloading packages:

Running transaction check

Running transaction test

Transaction test succeeded

Running transaction

  正在安装    : influxdb2-2.0.4-1.x86_64                                                                            1/1Created symlink from /etc/systemd/system/influxd.service to /usr/lib/systemd/system/influxdb.service.

Created symlink from /etc/systemd/system/multi-user.target.wants/influxdb.service to /usr/lib/systemd/system/influxdb.service.

  验证中      : influxdb2-2.0.4-1.x86_64                                                                            1/1

 

已安装:

  influxdb2.x86_64 0:2.0.4-1                                                                                           

 

完毕！

 

yum remove influxdb2

 

查到的版本号：

[root@localhost ~]# influx version

Influx CLI 2.0.4 (git: 4e7a59bb9a) build_date: 2021-02-08T17:47:02Z

 

监听端口（官方说是9999，可能是安装了V1版本的关系）：

[root@localhost ~]# netstat -a -n | grep 8086

tcp6       0      0 :::8086                 :::*                    LISTEN 

 

[root@localhost ~]# influx telegrafs

Error: At least one of org, org-id, or id must be provided.

Error: The instance at "http://localhost:8086" has not been setup. Please run `influx setup` before issuing any additional commands.

See 'influx telegrafs -h' for help

 

至少需要一个组织设定，看来是走多租户路线。需要初始化实例：

[root@localhost ~]# influx setup

Welcome to InfluxDB 2.0!

Please type your primary username: admin

 

Please type your password: 【adminadmin】

 

Please type your password again:

 

Please type your primary organization name: Sunpower    

 

Please type your primary bucket name: telegraf

 

Please type your retention period in hours.

Or press ENTER for infinite.:     

 

You have entered:

  Username:          admin

  Organization:      Sunpower

  Bucket:            telegraf

  Retention Period:  infinite

Confirm? (y/n): y

 

Config default has been stored in /root/.influxdbv2/configs.

User    Organization    Bucket

admin   Sunpower        telegraf

 

初始化有三种方式：

(1)使用UI界面设置

访问http://localhost:9999

点击Get Started

按要求输入Username、Password、Confirm Password、Organization Name、Bucket Name

点击Continue

 

(2)使用CLI命令设置

influx setup

按要求依次输入primary username、password、Confirm Password、Organization Name、Bucket Name、retention period

 

（3）使用CLI命令快速设置

此方法在github的readme中提到。

influx setup --username marty --password F1uxKapacit0r85 --org InfluxData --bucket telegraf --retention 168 --token where-were-going-we-dont-need-roads --force

 

通过http://192.168.1.23:8086访问：

 

InfluxDB V2的管理功能模块：

1. Data——数据管理
   1. Sources——采集数据源
   2. Buckets——数据集
   3. Telegraf——Telegraf管理
   4. Scrapers——多数据源数据采集并设定间隔写入数据集
   5. Tokens——权限令牌管理
2. Explore——数据探索
3. Boards——数据看板
4. Tasks——数据处理任务
5. Alerts——报警

 

InfluxDB V2之下telegraf采用了采集入口：

[[outputs.influxdb_v2]]

 

客户端连接增强了安全性，采用了Token

 

为Telegraf生成token

 

管理端Data——Telegraf

 

 

调整Telegraf的输出配置：

[[outputs.influxdb_v2]]

  ## The URLs of the InfluxDB cluster nodes.

  ##

  ## Multiple URLs can be specified for a single cluster, only ONE of the

  ## urls will be written to each interval.

  ## urls exp: http://127.0.0.1:8086

  #urls = ["http://192.168.1.23:8086"]

  urls = ["http://127.0.0.1:8086"]

 

  # Token for authentication.

  #token = "$INFLUX_TOKEN"

token="8bWFhN5trYwf3JNUxu4paHctvC-LiindWnBBBoHze9HvN3Pm-mrZT85WA4AakULQqIkP7CoXVsgV9desxfGqBw=="

 

  ## Organization is the name of the organization you wish to write to; must exist.

  organization = "Sunpower"

 

  ## Destination bucket to write into.

  bucket = "telegraf"

 

 

及时清查Telegraph中的配置的正确性，错误的配置可能导致Telegraf停止数据收集。