196 lines
4.6 KiB
Plaintext
196 lines
4.6 KiB
Plaintext
tar -zxvf node_exporter-1.8.2.linux-amd64.tar.gz
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vim /etc/systemd/system/node_exporter.service
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[Unit]
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Description=node_exporter Monitoring System
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Documentation=node_exporter Monitoring System
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[Service]
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ExecStart=/opt/exporter/node_exporter/node_exporter --web.listen-address=:9100
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[Install]
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WantedBy=multi-user.target
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systemctl daemon-reexec
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systemctl daemon-reload
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systemctl start node_exporter
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systemctl status node_exporter
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systemctl enable node_exporter
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ss -ntl | grep 9100
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curl http://localhost:9100/metrics
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--------------------------------------------------------------------------------------------------------
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# 下载 node_exporter
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cd /opt/
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wget https://github.com/prometheus/node_exporter/releases/download/v1.8.0/node_exporter-1.8.0.linux-amd64.tar.gz
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tar -xzf node_exporter-1.8.0.linux-amd64.tar.gz
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mv node_exporter-1.8.2.linux-amd64 node_exporter
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# systemd 管理----------
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sudo tee /etc/systemd/system/node_exporter.service > /dev/null <<EOF
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[Unit]
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Description=Prometheus Node Exporter
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After=network.target
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[Service]
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User=root
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ExecStart=/opt/exporter/node_exporter/node_exporter
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Restart=on-failure
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[Install]
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WantedBy=multi-user.target
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EOF
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# systemd 管理----------
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sudo systemctl daemon-reexec
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sudo systemctl daemon-reload
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sudo systemctl start node_exporter
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sudo systemctl status node_exporter
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sudo systemctl enable node_exporter
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# 启动服务
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nohup /opt/node_exporter/node_exporter > /opt/node_exporter/node_exporter.log 2>&1 &
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默认监听 9100，确认防火墙放行或仅 Prometheus 网络能访问。
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调试技巧
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cat /proc/1784152/cmdline | tr '\0' '\n'
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安装 process_exporter（二进制）
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cd /opt/
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wget https://github.com/ncabatoff/process-exporter/releases/download/v0.7.10/process-exporter-0.7.10.linux-amd64.tar.gz
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tar -xzf process-exporter-0.7.10.linux-amd64.tar.gz
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mv process-exporter-0.8.5.linux-amd64 process-exporter
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sudo tee /etc/systemd/system/process_exporter.service > /dev/null <<EOF
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[Unit]
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Description=Prometheus Process Exporter
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After=network.target
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[Service]
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ExecStart=/opt/exporter/process-exporter/process-exporter --config.path=/opt/exporter/process-exporter/process-exporter.yml
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Restart=always
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User=root
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[Install]
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WantedBy=multi-user.target
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EOF
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sudo systemctl daemon-reload
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sudo systemctl start process_exporter
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sudo systemctl status process_exporter
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sudo systemctl enable process_exporter
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安装 mongodb_exporter
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cd /opt
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wget https://github.com/percona/mongodb_exporter/releases/download/v0.40.0/mongodb_exporter-0.40.0.linux-amd64.tar.gz
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tar -xzf mongodb_exporter-0.40.0.linux-amd64.tar.gz
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mv mongodb_exporter-0.40.0.linux-amd64 /opt/mongodb_exporter
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use admin
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db.createUser({
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user: "prometheus",
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pwd: "StrongPassword",
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roles: [ { role: "clusterMonitor", db: "admin" } ]
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})
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[Unit]
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Description=Prometheus MongoDB Exporter
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After=network.target
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[Service]
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ExecStart=/opt/exporter/mongodb_exporter/mongodb_exporter \
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--mongodb.uri=mongodb://prometheus:StrongPassword@localhost:27017/admin
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Restart=on-failure
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User=root
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[Install]
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WantedBy=multi-user.target
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sudo tee /etc/systemd/system/mongodb_exporter.service > /dev/null <<EOF
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[Unit]
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Description=Prometheus MongoDB Exporter
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After=network.target
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[Service]
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ExecStart=/opt/exporter/mongodb_exporter/mongodb_exporter \
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--mongodb.uri=mongodb://admin:Ud4G8sty6BK@localhost:27017/admin \
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Restart=on-failure
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User=root
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[Install]
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WantedBy=multi-user.target
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EOF
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# 请将 mongodb://myuser:mypassword@localhost:27017/admin 替换为你的实际账号密码和数据库地址。
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sudo systemctl daemon-reload
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sudo systemctl restart mongodb_exporter
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sudo systemctl start mongodb_exporter
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sudo systemctl status mongodb_exporter
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sudo systemctl enable mongodb_exporter
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[Unit]
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Description=Prometheus MongoDB Exporter
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After=network.target
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[Service]
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ExecStart=/opt/exporter/mongodb_exporter/mongodb_exporter --mongodb.uri=mongodb://admin:Ud4G8sty6BK@localhost:27017/admin --compatible-mode
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Restart=on-failure
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User=root
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[Install]
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WantedBy=multi-user.target
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# 启动
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/opt/mongodb_exporter/mongodb_exporter \
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--mongodb.uri="mongodb://<user>:<password>@localhost:27017/admin" &
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use admin
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// 获取总连接数信息
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var connStatus = db.serverStatus().connections;
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print("总连接数 current:", connStatus.current, "可用 available:", connStatus.available);
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// 统计每个客户端 IP 当前连接数
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db.adminCommand({
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aggregate: 1,
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pipeline: [
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{ $currentOp: { allUsers: true, localOps: true } },
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{ $match: { client: { $exists: true } } },
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{ $project: { ip: { $arrayElemAt: [ { $split: ["$client", ":"] }, 0 ] } } },
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{ $group: { _id: "$ip", count: { $sum: 1 } } },
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{ $sort: { count: -1 } }
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],
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cursor: {}
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}).cursor.firstBatch.forEach(doc => printjson(doc)); |