• InfluxDB:集群版使用指南(Influx-proxy)


    Influx-proxy的使用指南

    来源:https://www.cnblogs.com/enobear/p/13595712.html

    Influx Proxy 是一个基于高可用、一致性哈希的 InfluxDB 集群代理服务,实现了 InfluxDB 高可用集群的部署方案,具有动态扩/缩容、故障恢复、数据同步等能力。

    相关文档:https://github.com/chengshiwen/influx-proxy
    下载地址:https://golang.org/dl/
    

    1.安装

    安装依赖

    Influx-proxy编译时需要go语言环境。
    

    服务器

    系统:centos 7.x
    网络:支持访问公网
    服务器:两台
    

    架构

            ┌──────────────────┐
            writes & queries └──────────────────┘
                     ┌──────────────────┐
            InfluxDB Proxy  (only http)    └──────────────────┘
                     ┌──────────────────┐
            db,measurement  consistent hash  └──────────────────┘
              |              |
            ┌─┼──────────────┘
            │ └────────────────┐
            ▼                  ▼
         Circle 1          Circle 2
      ┌────────────┐    ┌────────────┐
      InfluxDB 1 InfluxDB 3 InfluxDB 2 InfluxDB 4 └────────────┘    └────────────┘
    

    配置示例

    # 配置文件
    /opt/influx-proxy/proxy.json
    
    {
        "circles": [
            {
                "name": "circle-1",
                "backends": [
                    {
                        "name": "influxdb-1-1",
                        "url": "http://192.168.1.11:8086",
                        "username": "root",
                        "password": "123456",
                        "auth_secure": false
                    },
                    {
                        "name": "influxdb-1-2",
                        "url": "http://192.168.1.11:8087",
                        "username": "root",
                        "password": "123456",
                        "auth_secure": false
                    }
                ]
            },
            {
                "name": "circle-2",
                "backends": [
                    {
                        "name": "influxdb-2-1",
                        "url": "http://192.168.1.12:8086",
                        "username": "root",
                        "password": "123456",
                        "auth_secure": false
                    },
                    {
                        "name": "influxdb-2-2",
                        "url": "http://192.168.1.12:8087",
                        "username": "root",
                        "password": "123456",
                        "auth_secure": false
                    }
                ]
            }
        ],
        "listen_addr": ":7076",
        "db_list": [],
        "data_dir": "/mnt/data/influx-pr/data",
        "tlog_dir": "/mnt/data/influx-pr/log",
        "hash_key": "idx",
        "flush_size": 10000,
        "flush_time": 1,
        "check_interval": 1,
        "rewrite_interval": 10,
        "conn_pool_size": 20,
        "write_timeout": 10,
        "idle_timeout": 10,
        "username": "root",
        "password": "123456",
        "auth_secure": false,
        "write_tracing": false,
        "query_tracing": false,
        "https_enabled": false,
        "https_cert": "",
        "https_key": ""
    }
    
    # 配置文件
    /etc/influxdb/influxdb.conf.1
    
    reporting-disabled = true         # 禁用报告,默认为 false
    bind-address = ":8088"
    [meta]
    dir = "/mnt/data/influxdb/meta"    # 元信息目录
    [data]
    dir = "/mnt/data/influxdb/data"    # 数据目录
    wal-dir = "/mnt/data/influxdb/wal" # 预写目录
    wal-fsync-delay = "10ms"          # SSD 设置为 0s,非 SSD 推荐设置为 0ms-100ms
    index-version = "tsi1"            # tsi1 磁盘索引,inmem 内存索引需要大量内存
    query-log-enabled = true          # 查询的日志,默认是 true
    [coordinator]
    write-timeout = "20s"             # 写入请求超时时间,默认为 10s
    [http]
    enabled = true
    bind-address = ":8086"
    auth-enabled = true
    log-enabled = true                 # http 请求日志,默认是 true
    [logging]
    level = "info"                    # 日志等级,error、warn、info(默认)、debug
    
    # 配置文件
    /etc/influxdb/influxdb.conf.2
    
    reporting-disabled = true         # 禁用报告,默认为 false
    bind-address = ":8089"
    [meta]
    dir = "/mnt/data/influxdb/meta"    # 元信息目录
    [data]
    dir = "/mnt/data/influxdb/data"    # 数据目录
    wal-dir = "/mnt/data/influxdb/wal" # 预写目录
    wal-fsync-delay = "10ms"          # SSD 设置为 0s,非 SSD 推荐设置为 0ms-100ms
    index-version = "tsi1"            # tsi1 磁盘索引,inmem 内存索引需要大量内存
    query-log-enabled = true          # 查询的日志,默认是 true
    [coordinator]
    write-timeout = "20s"             # 写入请求超时时间,默认为 10s
    [http]
    enabled = true
    bind-address = ":8087"
    auth-enabled = true
    log-enabled = true                 # http 请求日志,默认是 true
    [logging]
    level = "info"                    # 日志等级,error、warn、info(默认)、debug
    
    # 系统服务文件
    /etc/systemd/system/influxd-cluster@.service
    
    [Unit]
    Description=influx-cluster
    After=network.target
    
    [Service]
    Type=simple
    ExecStart=/usr/bin/influxd -config /etc/influxdb/influxdb.conf.%i
    Restart=on-failure
    
    [Install]
    WantedBy=multi-user.target
    
    # 系统服务文件
    /etc/systemd/system/influx-proxy.service
    
    [Unit]
    Description=influx-proxy
    After=network.target
    
    [Service]
    Type=simple
    ExecStart=/usr/local/bin/influx-proxy -config /opt/influx-proxy/proxy.json
    KillSignal=SIGTERM
    
    [Install]
    WantedBy=multi-user.target
    

    Influx-proxy 版本安装

    服务器1:Circle 1 、influx-proxy
    服务器2:Circle 2 
    
    # 下载influx-proxy(服务器1)
    cd /opt
    git clone https://github.com/chengshiwen/influx-proxy.git
    
    # 安装go环境(服务器1)
    tar -zxvf go1.15.linux-amd64.tar.gz -C /usr/local
    echo "export PATH=$PATH:/usr/local/go/bin" >> /etc/profile
    echo "export GOPROXY=https://goproxy.io" >> /etc/profile
    source /etc/profile
    
    # 编译influx-proxy(服务器1)
    cd influx-proxy
    make
    
    cp /opt/influx-proxy/bin/influx-proxy /usr/local/bin/
    
    # 配置influx-proxy(服务器1)
    vim /opt/influx-proxy/proxy.json
    vim /etc/systemd/system/influx-proxy.service
    
    # 安装influxdb(多实例)(服务器1)(服务器2)
    wget https://dl.influxdata.com/influxdb/releases/influxdb-1.8.2.x86_64.rpm
    yum -y localinstall influxdb-1.8.2.x86_64.rpm
    vim /etc/influxdb/influxdb.conf.1
    vim /etc/influxdb/influxdb.conf.2
    vim /etc/systemd/system/influxd-cluster@.service
    
    # 设置权限(服务器1)(服务器2)
    mkdir -p /mnt/data/influxdb
    chown influxdb:influxdb /mnt/data/influxdb
    
    mkdir -p /mnt/data/influx-pr
    chown influxdb:influxdb /mnt/data/influx-pr
    
    # 启动influxDB、influx-proxy(服务器1)(服务器2)
    systemctl start influxd-cluster@1
    systemctl start influxd-cluster@2
    systemctl start influx-proxy
    
    # 设置用户、密码(两台服务器4个实例都需要设置)(服务器1)(服务器2)
    influx -port 8086
    create user 'username' with password 'password' with all privileges
    exit
    
    influx -port 8087
    create user 'username' with password 'password' with all privileges
    exit
    

    2.使用

    基本命令

    # 启动集群(三种都可以)
    ① influx-proxy -config /opt/influx-proxy/proxy.json
    ② systemctl start influx-proxy
    ③ nohup influx-proxy -config /opt/influx-proxy/proxy.json > /dev/null 2>&1 &
    
    # 查看版本
    influx-proxy -version
    

    在这里插入图片描述

    # 查看集群状态
    curl http://127.0.0.1:7076/health -u root:123456 
    

    在这里插入图片描述

     
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  • 原文地址:https://www.cnblogs.com/zouhao/p/14428695.html
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