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解决方案介绍

该解决方案基于开源项目InfluxDB-Cluster构建,可以帮助您在华为云上快速部署InfluxDB-Cluster + 弹性负载均衡 ELB高可用时序数据库集群。InfluxDB-Cluster是InfluxDB的一个社区集群版本,它借鉴了InfluxDB早期版本的集群功能代码思路,具有可扩展、容灾、高可用等能力。ELB补充负载均衡的能力,统一对外服务的接口,完整实现了对外服务的高可用,适用于数据密集写入、访问频繁、业务可靠性要求较高的场景。

解决方案实践详情页面地址:https://www.huaweicloud.com/solution/implementations/building-a-high-availability-influxdb-cluster.html

架构图

方案架构

架构描述

该解决方案会部署如下资源:

单机版

  • 创建一台弹性云服务器 ECS,绑定EIP,用于部署 InfluxDB数据库,作为InfluxDB数据库的服务器对外提供服务。
  • 创建一个弹性公网IP EIP,提供公网接入服务器的能力,实现对外提供服务。

高可用版

  • 创建两台弹性云服务器 ECS,用于部署 InfluxDB集群,作为InfluxDB-Cluster的服务器对外提供服务。
  • 创建一个弹性负载均衡 ELB,并绑定EIP,提供负载均衡的能力以实现InfluxDB集群对外服务的高可用。
  • 创建一个弹性公网IP EIP,提供公网接入集群的能力,实现集群对外提供服务。

组织结构

huaweicloud-solution-E-commerce-shop-based-magento
├── building-a-high-availability-influxdb-cluster.tf.json -- 资源编排模板
├── userdata
	├── install_influxdb_cluster.sh  -- 脚本配置文件

开始使用

Linux 系统

客户端访问集群

1.安装InfluxDB客户端(CLI),以CentOS 7.6为例。

InfluxDB 1.8.10:
wget -c  https://dl.influxdata.com/influxdb/releases/influxdb-1.8.10.x86_64.rpm

图1 下载influxdb1.8.10 下载influxdb1.8.10

在influxdb-1.8.10.x86_64.rpm所在目录下执行:
yum install -y influxdb-1.8.10.x86_64.rpm

图2 安装influxdb1.8.10 安装influxdb1.8.10

2.在 "堆栈->资源" 中获取EIP。

  • 部署高可用集群后获取EIP

图3 单击ELB 单击ELB

图4 获取EIP 获取EIP

  • 部署单机版后获取EIP

图5 单击ECS 单击ECS

图6 获取EIP 获取EIP

3.执行如下命令连接集群。

influx -host $EIP -port $PORT
参数:高可用 EIP 是与ELB绑定,单机版是直接与服务器(ECS)绑定;端口 PORT 默认8086。

图7 连接数据库 连接数据库

安装并使用 influx CLI获取更多信息。

Curl 命令访问集群

1.通过如下命令访问集群。

curl -G "http://EIP:8086/query?u=xxxx&p=xxxxxx" --data-urlencode "q=show databases"

图8 访问数据库 curl 访问数据库

Windows系统

1.通过浏览器下载 InfluxDBStudio-0.2.0,解压缩 InfluxDBStudio-0.2.0.zip。

图9 下载工具 下载InfluxDBStudio

2.双击进入解压出来的文件夹InfluxDBStudio-0.2.0,然后双击运行influxDBStudio.exe。

图10 双击运行 双击运行influxDBStudio.exe

3.依次单击 Connections -> Manage 打开创建连接的回话窗口(首次运行会自动弹出创建连接的窗口)。

图11 打开会话窗口 打开会话窗口

图12 创建连接 创建连接

图13 配置参数(EIP获取详见 Linux系统步骤二) 配置参数

图14 测试网络 测试网络

图15 测试连接 测试连接

图16 保存配置 保存配置

图17 连接数据库 连接数据库

图18 数据库连接成功 连接数据库

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该方案帮助您华为云上快速构建高可用InfluxDB集群。 展开 收起
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