参考资料

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/

架构

所需资源:

• 3台服务器
• 系统：centos 7.x

软件版本:

• influxdb-proxy 2.5.5
• go 1.15.7
• influxdb 1.8.2

部署

influxdb-node1\2运行

#下载influxdb软件
wget -c https://dl.influxdata.com/influxdb/releases/influxdb-1.8.2.x86_64.rpm
#安装influxdb
yum install -y influxdb-1.8.2.x86_64.rpm
#创建influxdb所使用的的目录
mkdir -p /data/influxdb/{meta,data,wal}
#配置系统启动命令
# cat influxdb-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
#将文件influxdb-cluster@.service复制到/etc/systemd/system/
cp influxdb-cluster@.service /etc/systemd/system/

编辑配置文件

• influxdb-node1操作

# cat influxdb.conf.1
reporting-disabled = true         # 禁用报告，默认为 false
bind-address = ":8088"
[meta]
dir = "/data/influxdb/meta"    # 元信息目录
[data]
dir = "/data/influxdb/data"    # 数据目录
wal-dir = "/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

# cat influxdb.conf.2
reporting-disabled = true         # 禁用报告，默认为 false
bind-address = ":8089"
[meta]
dir = "/data/influxdb/meta"    # 元信息目录
[data]
dir = "/data/influxdb/data"    # 数据目录
wal-dir = "/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

• influxdb-node2节点操作

# cat influxdb.conf.3
reporting-disabled = true         # 禁用报告，默认为 false
bind-address = ":8088"
[meta]
dir = "/data/influxdb/meta"    # 元信息目录
[data]
dir = "/data/influxdb/data"    # 数据目录
wal-dir = "/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

# cat influxdb.conf.4
reporting-disabled = true         # 禁用报告，默认为 false
bind-address = ":8089"
[meta]
dir = "/data/influxdb/meta"    # 元信息目录
[data]
dir = "/data/influxdb/data"    # 数据目录
wal-dir = "/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

启动influxdb--node1节点操作

systemctl start influxdb-cluster@1 influxdb-cluster@2
systemctl status influxdb-cluster@1 influxdb-cluster@2
systemctl enable influxdb-cluster@1 influxdb-cluster@2

启动influxdb--node2节点操作

systemctl start influxdb-cluster@3 influxdb-cluster@4
systemctl status influxdb-cluster@3 influxdb-cluster@4
systemctl enable influxdb-cluster@3 influxdb-cluster@4

所有节点创建用户

influx -port 8086

CREATE USER admin with PASSWORD ‘****‘ WITH ALL PRIVILEGES

influx -port 8087

CREATE USER admin with PASSWORD ‘*****‘ WITH ALL PRIVILEGES

以下操作请在influxdb-master1节点上操作

配置go环境

wget -c https://dl.google.com/go/go1.15.7.linux-amd64.tar.gz
tar -C /usr/local -xf go1.15.7.linux-amd64.tar.gz
export PATH=$PATH:/usr/local/go/bin
go version
#vim /etc/profile

export PATH=$PATH:/usr/local/go/bin
export GOPROXY=https://goproxy.io

配置influxdb-proxy服务

• 配置文件

# cat proxy.json
{
    "circles": [
        {
            "name": "circle-1",
            "backends": [
                {
                    "name": "influxdb-1-1",
                    "url": "http://172.*.*.*:8086",
                    "username": "admin",
                    "password": "123456",
                    "auth_secure": false
                },
                {
                    "name": "influxdb-1-2",
                    "url": "http://172.*.*.*:8087",
                    "username": "admin",
                    "password": "123456",
                    "auth_secure": false
                }
            ]
        },
        {
            "name": "circle-2",
            "backends": [
                {
                    "name": "influxdb-2-1",
                    "url": "http://172.*.*.*:8086",
                    "username": "admin",
                    "password": "****",
                    "auth_secure": false
                },
                {
                    "name": "influxdb-2-2",
                    "url": "http://172.*.*.*:8087",
                    "username": "admin",
                    "password": "****",
                    "auth_secure": false
                }
            ]
        }
    ],
    "listen_addr": ":7076",
    "db_list": [],
    "data_dir": "/data/influx-pr/data",
    "tlog_dir": "/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": "admin",
    "password": "*****",
    "auth_secure": false,
    "write_tracing": false,
    "query_tracing": false,
    "https_enabled": false,
    "https_cert": "",
    "https_key": ""
}

• 下载influx-proxy

wget -c https://github.com/chengshiwen/influx-proxy/releases/download/v2.5.5/influx-proxy-2.5.5.tar.gz
#解压
tar xf influx-proxy-2.5.5.tar.gz
#cp
cp influx-proxy-2.5.5/influx-proxy /usr/local/bin/

• 系统启动服务

# cat influx-proxy.service
[Unit]
Description=influx-proxy
After=network.target

[Service]
Type=simple
ExecStart=/usr/local/bin/influx-proxy -config /usr/local/influx-proxy/proxy.json
KillSignal=SIGTERM

[Install]
WantedBy=multi-user.target

cp influx-proxy.service /etc/systemd/system/

启动influx-proxy

# 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 &

#配置开机启动
systemctl enable influx-proxy

查看集群状态

curl http://127.0.0.1:7076/health -u admin:***** 

[{"circle":{"id":0,"name":"circle-1","active":true,"write_only":false},"backends":[{"name":"influxdb-1-1","url":"http://172.*.*.*:8086","active":true,"backlog":false,"rewrite":false},{"name":"influxdb-1-2","url":"http://172.*.*.*:8087","active":true,"backlog":false,"rewrite":false}]},{"circle":{"id":1,"name":"circle-2","active":true,"write_only":false},"backends":[{"name":"influxdb-2-1","url":"http://172.*.*.*:8086","active":true,"backlog":false,"rewrite":false},{"name":"influxdb-2-2","url":"http://172.*.*.*:8087","active":true,"backlog":false,"rewrite":false}]}]

influxdb-cluster安装部署

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