Prometheus
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Prometheus是一个TSDB。
安装
Ubuntu 18.04系统内的Prometheus太旧（2.1），加上没有适合的PPA可以用，这边使用官方的binary安装：
cd /tmp; wget https://github.com/prometheus/prometheus/releases/download/v2.22.0/prometheus-2.22.0.linux-amd64.tar.gz; tar zxvf prometheus-2.22.0.linux-amd64.tar.gz; cd prometheus-2.22.0.linux-amd64; sudo cp prometheus promtool /usr/bin; sudo mkdir /etc/prometheus; sudo cp prometheus.yml /etc/prometheus/; sudo cp -R consoles/ console_libraries/ /etc/prometheus/; sudo useradd -r -U prometheus; sudo mkdir /var/lib/prometheus; sudo chown prometheus:prometheus /var/lib/prometheus; echo -e "[Unit]\nDescription=Prometheus Time Series Collection and Processing Server\nWants=network-online.target\nAfter=network-online.target\n\n[Service]\nUser=prometheus\nGroup=prometheus\n\nType=simple\n
ExecStart=/usr/bin/prometheus --config.file /etc/prometheus/prometheus.yml --storage.tsdb.path /var/lib/prometheus/ --web.console.templates=/etc/prometheus/consoles --web.console.libraries=/etc/prometheus/console_libraries\n\n[Install]\nWantedBy=multi-user.target" | sudo tee /lib/systemd/system/prometheus.service; sudo systemctl daemon-reload; sudo systemctl enable prometheus; sudo service prometheus start
设定
要注意官方安装档内的prometheus.yml中scrape_interval与evaluation_interval预设是15s（但不设定时预设是1m），正常情况下5m应该是够用，可以考虑指定5m降低频率。
外部链接
- 官方网站 （英文）