如何在Ubuntu上部署InfluxDB集群

在Ubuntu上部署InfluxDB集群需要以下幾個步驟：

1. 安裝InfluxDB

首先，在每個節點上安裝InfluxDB?？梢允褂靡韵旅顏硖砑覫nfluxDB的存儲庫并安裝軟件包：

wget -qO- https://repos.influxdata.com/influxdb.key | sudo apt-key add -
source /etc/lsb-release
echo "deb https://repos.influxdata.com/${DISTRIB_ID,,} ${DISTRIB_CODENAME} stable" | sudo tee /etc/apt/sources.list.d/influxdb.list
sudo apt-get update && sudo apt-get install influxdb

2. 配置InfluxDB

在每個節點上，編輯/etc/influxdb/influxdb.conf文件，以配置數據和元數據存儲、HTTP API綁定地址、端口等。例如：

[meta]
  dir = "/var/lib/influxdb/meta"
  bind-address = "0.0.0.0:8088"
  retention-autocreate = true
  logging-enabled = true

[data]
  dir = "/var/lib/influxdb/data"
  wal-dir = "/var/lib/influxdb/wal"
  query-log-enabled = true
  cache-max-memory-size = 1073741824
  cache-snapshot-memory-size = 26214400
  cache-snapshot-write-cold-duration = "10m0s"
  compact-full-write-cold-duration = "4h0m0s"
  max-series-per-database = 1000000
  max-values-per-tag = 100000
  max-concurrent-compactions = 0
  trace-logging-enabled = false

[coordinator]
  write-timeout = "10s"
  max-concurrent-queries = 0
  query-timeout = "0s"
  log-queries-after = "0s"
  max-select-point = 0
  max-select-series = 0
  max-select-buckets = 0

[retention]
  enabled = true
  check-interval = "30m0s"

[shard-precreation]
  enabled = true
  check-interval = "10m0s"
  advance-period = "30m0s"

[admin]
  enabled = false
  bind-address = ":8083"
  https-enabled = false
  https-certificate = "/etc/ssl/influxdb.pem"

[http]
  enabled = true
  bind-address = ":8086"
  auth-enabled = false
  log-enabled = true
  write-tracing = false
  pprof-enabled = false
  https-enabled = false
  https-certificate = "/etc/ssl/influxdb.pem"
  https-private-key = ""
  max-row-limit = 10000
  max-connection-limit = 0
  shared-secret = ""
  realm = "InfluxDB"
  unix-socket-enabled = false
  bind-socket = "/var/run/influxdb.sock"

[subscriber]
  enabled = true
  http-timeout = "30s"
  insecure-skip-verify = false
  ca-certs = ""
  write-concurrency = 40
  write-buffer-size = 1000

3. 配置集群

在每個數據節點上，編輯/etc/influxdb/influxdb.conf文件，添加[cluster]部分以配置集群通信。例如：

[cluster]
  dial-timeout = "1s"
  shard-writer-timeout = "5s"
  shard-reader-timeout = "0"
  max-remote-write-connections = 10
  cluster-tracing = false

在每個元數據節點上，編輯/etc/influxdb/influxdb.conf文件，添加[enterprise]部分以配置企業許可證和注冊信息（如果有）。例如：

[enterprise]
  registration-enabled = false
  registration-server-url = ""
  license-key = ""
  license-path = ""

4. 啟動InfluxDB

在每個節點上，使用以下命令啟動InfluxDB服務：

sudo systemctl start influxdb

5. 初始化集群

在一個元數據節點上，使用以下命令初始化集群：

influxd-ctl init

這將輸出一個示例命令，用于將其他數據節點添加到集群中。例如：

influxd-ctl join <data-node-1-ip>:8088

6. 添加數據節點

在其他數據節點上，運行上一步中生成的join命令，將它們添加到集群中。

7. 驗證集群狀態

在任何元數據節點上，使用以下命令查看集群狀態：

influxd-ctl show

這將顯示集群中所有節點的狀態。如果一切正常，您現在應該已經成功部署了一個InfluxDB集群。