目录
Prometheus整体架构
下载
? ? ? ? 官方下载地址如下：
Download | Prometheus
https://prometheus.io/download/下载版本prometheus-2.35.0-rc0.linux-amd64.tar.gz，如图：
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安装
? ? ? ? 将下载包prometheus-2.35.0-rc0.linux-amd64.tar.gz上传到/root/toos目录下，执行如下命令：
tar -zxvf prometheus-2.35.0-rc0.linux-amd64.tar.gz
解压到当前目录，如图：
执行如下命令，将解压后prometheus-2.35.0-rc0.linux-amd64目录下文件全部复制到/opt/prometheus目录下：
mkdir /opt/prometheus
mv prometheus-2.35.0-rc0.linux-amd64/* /opt/prometheus/
目录结构如下：
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配置
vi prometheus.yml
global:
scrape_interval: 15s
evaluation_interval: 15s
rule_files:
# - "first.rules"
# - "second.rules"
scrape_configs:
- job_name: prometheus
static_configs:
- targets: ['localhost:9090']启动
（1）简单启动
./prometheus --config.file=prometheus.yml（2）以服务方式启动
创建用户和用户组
groupadd prometheus
useradd -g prometheus -m -d /var/lib/prometheus -s /sbin/nologin prometheus目录所有者修改：
chown -R prometheus:prometheus /opt/prometheus/新建服务文件：
vi /usr/lib/systemd/system/prometheus.service内容如下：
[Unit]
Description=prometheus
After=network.target
[Service]
Type=simple
User=prometheus
ExecStart=/opt/prometheus/prometheus --config.file=/opt/prometheus/prometheus.yml --storage.tsdb.path=/opt/prometheus/data --storage.tsdb.retention=15d --log.level=info
Restart=on-failure
[Install]
WantedBy=multi-user.target启动服务
systemctl enable prometheus.service
systemctl daemon-reload
systemctl start prometheus.service
systemctl status prometheus.service如图：
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验证
?? ? ? ? 浏览器输入地址http://bigdata111:9090?，成功后界面如图：
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报错解决
报错日志如下：
[root@bigdata111 data]# systemctl status prometheus.service
● prometheus.service - prometheus
? ?Loaded: loaded (/usr/lib/systemd/system/prometheus.service; enabled; vendor preset: disabled)
? ?Active: failed (Result: start-limit) since Thu 2022-04-28 16:12:24 CST; 1s ago
? Process: 73691 ExecStart=/opt/prometheus/prometheus --config.file=/opt/prometheus/prometheus.yml (code=exited, status=1/FAILURE)
?Main PID: 73691 (code=exited, status=1/FAILURE)
Apr 28 16:12:24 bigdata111 systemd[1]: prometheus.service: main process exited, code=exited, status=1/FAILURE
Apr 28 16:12:24 bigdata111 systemd[1]: Unit prometheus.service entered failed state.
Apr 28 16:12:24 bigdata111 systemd[1]: prometheus.service failed.
Apr 28 16:12:24 bigdata111 systemd[1]: prometheus.service holdoff time over, scheduling restart.
Apr 28 16:12:24 bigdata111 systemd[1]: start request repeated too quickly for prometheus.service
Apr 28 16:12:24 bigdata111 systemd[1]: Failed to start prometheus.
Apr 28 16:12:24 bigdata111 systemd[1]: Unit prometheus.service entered failed state.
Apr 28 16:12:24 bigdata111 systemd[1]: prometheus.service failed.
解决：查看
vi /usr/lib/systemd/system/prometheus.service
配置如下配置是否错误
--storage.tsdb.path=/opt/prometheus/data
