2.2、安装说明（Linux）

Kapacitor 是 InfluxDB 1.x 的本地数据处理引擎，可以处理来自 InfluxDB 的流数据和批数据，通过其编程语言 TICKscript 实时处理这些数据。

安装 Kapacitor

方式一：使用 systemd 将 Kapacitor 安装为服务

1、使用以下命令从 InfluxData 下载页面使用 URL 下载并安装适当的 .deb 或文件：.rpm

下载页面：https://portal.influxdata.com/downloads/


# Ubuntu/Debian
wget https://dl.influxdata.com/kapacitor/releases/kapacitor_1.6.5-1_amd64.deb
sudo dpkg -i kapacitor_1.6.5-1_amd64.deb

# Ubuntu & Debian (ARMv8)
wget https://dl.influxdata.com/kapacitor/releases/kapacitor_1.6.5-1_arm64.deb
sudo dpkg -i kapacitor_1.6.5-1_arm64.deb

# RedHat & CentOS
wget https://dl.influxdata.com/kapacitor/releases/kapacitor-1.6.5-1.x86_64.rpm
sudo yum localinstall kapacitor-1.6.5-1.x86_64.rpm

# RedHat & CentOS (ARMv8)
wget https://dl.influxdata.com/kapacitor/releases/kapacitor-1.6.5-1.aarch64.rpm
sudo yum localinstall kapacitor-1.6.5-1.aarch64.rpm

使用.rpm包下载的确切文件名（例如，kapacitor-1.6.5-1.x86_64.rpm）。

2、启动 Kapacitor 服务：

sudo systemctl start kapacitor #启动kapacitor
systemctl status kapacitor #查看状态
systemctl enable kapacitor #开启开机启动

安装 Kapacitor 包会创建一个服务文件，/lib/systemd/system/kapacitor.service 用于在启动时将 Kapacitor 作为后台服务启动。

3、重新启动系统并验证服务是否正常运行：

$  sudo service kapacitor status
● influxdb.service - InfluxDB is an open-source, distributed, time series database
  Loaded: loaded (/lib/systemd/system/influxdb.service; enabled; vendor preset: enable>
  Active: active (running)

方式二：手动下载并安装 kapacitor 二进制文件

1、下载 Kapacitor 二进制文件。

从浏览器或命令行下载 Kapacitor 二进制文件。

注意：可先网页下载到本地，上传到 /usr/local/src 目录下，也可以使用 wget 下载；

从您的浏览器下载

从命令行下载

Linux Binaries (64-bit)

wget https://dl.influxdata.com/kapacitor/releases/kapacitor-1.6.5_linux_amd64.tar.gz
tar xvfz kapacitor-1.6.5_linux_amd64.tar.gz

Linux Binaries (ARMv8)

wget https://dl.influxdata.com/kapacitor/releases/kapacitor-1.6.5_linux_arm64.tar.gz
tar xvfz kapacitor-1.6.5_linux_arm64.tar.gz

2、解压并安装

amd64

$ cd /usr/local/src && tar xvzf kapacitor-1.6.5_linux_amd64.tar.gz -C /usr/local
$ cd .. && mv kapacitor_linux_amd64 kapacitor
$ echo 'export INFLUXDB_HOME=/usr/local/kapacitor/' >>/etc/profile
$ echo 'export PATH="$PATH:$INFLUXDB_HOME/bin"' >>/etc/profile
$ source /etc/profile
# （可选）将提取的influxd可执行二进制文件放入您的系统中$PATH
$ sudo cp influxdb2/influxd /usr/local/bin/

arm

# 本地安装包
$ cd /usr/local/src && tar xvzf kapacitor-1.6.5_linux_arm64.tar.gz -C /usr/local
$ cd .. && mv influxdb2_linux_amd64 influxdb2
$ echo 'export INFLUXDB_HOME=/usr/local/influxdb2/' >>/etc/profile
$ echo 'export PATH="$PATH:$INFLUXDB_HOME/bin"' >>/etc/profile
$ source /etc/profile
# （可选）将提取的influxd可执行二进制文件放入您的系统中$PATH
$ sudo cp influxdb2/influxd /usr/local/bin/

3、启动 InfluxDB

如果 InfluxDB 作为 systemd 服务安装，则 systemd 管理influxd守护进程，不需要进一步的操作。如果二进制文件是手动下载并添加到系统中的，请使用以下命令$PATH启动守护进程：influxd

[root@localhost local]# influxd
2023-02-08T08:40:26.285251Z     info    Welcome to InfluxDB     {"log_id": "0ft2mDg0000", "version": "v2.6.1", "commit": "9dcf880fe0", "build_date": "2022-12-29T15:53:07Z", "log_level": "info"}
2023-02-08T08:40:26.326574Z     info    Resources opened        {"log_id": "0ft2mDg0000", "service": "bolt", "path": "/root/.influxdbv2/influxd.bolt"}
2023-02-08T08:40:26.326708Z     info    Resources opened        {"log_id": "0ft2mDg0000", "service": "sqlite", "path": "/root/.influxdbv2/influxd.sqlite"}
2023-02-08T08:40:26.338018Z     info    Bringing up metadata migrations {"log_id": "0ft2mDg0000", "service": "KV migrations", "migration_count": 20}
2023-02-08T08:40:27.847882Z     info    Bringing up metadata migrations {"log_id": "0ft2mDg0000", "service": "SQL migrations", "migration_count": 8}
2023-02-08T08:40:28.143999Z     info    Using data dir  {"log_id": "0ft2mDg0000", "service": "storage-engine", "service": "store", "path": "/root/.influxdbv2/engine/data"}
2023-02-08T08:40:28.144207Z     info    Compaction settings     {"log_id": "0ft2mDg0000", "service": "storage-engine", "service": "store", "max_concurrent_compactions": 4, "throughput_bytes_per_second": 50331648, "throughput_bytes_per_second_burst": 50331648}
2023-02-08T08:40:28.144291Z     info    Open store (start)      {"log_id": "0ft2mDg0000", "service": "storage-engine", "service": "store", "op_name": "tsdb_open", "op_event": "start"}
2023-02-08T08:40:28.144402Z     info    Open store (end)        {"log_id": "0ft2mDg0000", "service": "storage-engine", "service": "store", "op_name": "tsdb_open", "op_event": "end", "op_elapsed": "0.127ms"}
2023-02-08T08:40:28.144468Z     info    Starting retention policy enforcement service   {"log_id": "0ft2mDg0000", "service": "retention", "check_interval": "30m"}
2023-02-08T08:40:28.144499Z     info    Starting precreation service    {"log_id": "0ft2mDg0000", "service": "shard-precreation", "check_interval": "10m", "advance_period": "30m"}
2023-02-08T08:40:28.146053Z     info    Starting query controller       {"log_id": "0ft2mDg0000", "service": "storage-reads", "concurrency_quota": 1024, "initial_memory_bytes_quota_per_query": 9223372036854775807, "memory_bytes_quota_per_query": 9223372036854775807, "max_memory_bytes": 0, "queue_size": 1024}
2023-02-08T08:40:28.150441Z     info    Configuring InfluxQL statement executor (zeros indicate unlimited).     {"log_id": "0ft2mDg0000", "max_select_point": 0, "max_select_series": 0, "max_select_buckets": 0}
2023-02-08T08:40:28.191576Z     info    Starting        {"log_id": "0ft2mDg0000", "service": "telemetry", "interval": "8h"}
2023-02-08T08:40:28.194039Z     info    Listening       {"log_id": "0ft2mDg0000", "service": "tcp-listener", "transport": "http", "addr": ":8086", "port": 8086}

4、开机自启动

[root@local ~]# vi /lib/systemd/system/influxd.service

脚本内容：

[Unit]
Description=InfluxDB is an open source time series platform.
Documentation=https://github.com/influxdata/influxdb
After=network.target

[Service]
User=root
ExecStart=/usr/local/bin/influxd -config /etc/telegraf/telegraf.conf -config-directory /etc/telegraf/telegraf.d
ExecReload=/bin/kill -s HUP $MAINPID
ExecStop=/bin/kill -s QUIT $MAINPID
LimitNOFILE=65536
TimeoutStopSec=20
Restart=on-failure
StartLimitInterval=60
StartLimitBurst=3000

[Install]
WantedBy=multi-user.target

设置随机启动：

[root@local ~]# systemctl daemon-reload
[root@local ~]# systemctl disable influxd.service
[root@local ~]# systemctl enable influxd.service
[root@local ~]# systemctl start influxd.service
[root@local ~]# systemctl status influxd.service
[root@local ~]# systemctl stop influxd.service
[root@local ~]# systemctl restart influxd.service

配置

Kapacitor 还可以使用此命令为您提供示例配置：

kapacitord config

要生成新的配置文件，请运行：

kapacitord config > kapacitor.generated.conf

共享秘密

如果使用Kapacitor v1.5.3 或更新版本以及启用身份验证的 InfluxDB ，请将 Kapacitor 配置文件中的选项设置为[http].shared-secretInfluxDB 实例的共享密钥。

# ...
[http]
  # ...
  shared-secret = "youramazingsharedsecret"

如果未设置、设置为空字符串或与 InfluxDB 的共享秘密不匹配，则与 InfluxDB 的集成将失败，Kapacitor 将不会启动。

时区

要使用首选时区显示警报通知，请更改运行 Kapacitor 的主机的时区或设置 Kapacitor 进程的TZ环境变量。

系统

添加环境变量使用 systemctl edit kapacitor：

[Service]
Environment="TZ=Asia/Shanghai"

作者：Jeebiz 创建时间：2023-02-08 21:02
最后编辑：Jeebiz 更新时间：2024-02-26 11:18