Prometheus 监控进程

Process-exporter

　　process-exporter可以用来检测所选进程的存活状态

下载process-exporter

　　下载地址：https://github.com/ncabatoff/process-exporter/releases/tag/v0.4.0　　

安装部署process-exporter

tar -zxvf process-exporter-0.4.0.linux-amd64.tar.gz -C /usr/local/process-exporter

　　编写配置文件

vim process-exporter-ncabatoff.yaml

process_names:

  - name: "{{.Matches}}"

    cmdline:

    - 'redis-server'

  - name: "{{.Matches}}"

    cmdline:

    - 'mysqld'

  - name: "{{.Matches}}"

    cmdline:

    - 'org.apache.zookeeper.server.quorum.QuorumPeerMain'

  - name: "{{.Matches}}"

    cmdline:

    - 'org.apache.hadoop.mapreduce.v2.hs.JobHistoryServer'

  - name: "{{.Matches}}"

    cmdline:

    - 'org.apache.hadoop.hdfs.qjournal.server.JournalNode'

　　注 cmdline:  所选进程的唯一标识，ps -ef 可以查询到。如果改进程不存在，则不会有该进程的数据采集到。

　　编写启动脚本

vim /usr/lib/systemd/system/process_exporter.service

[Unit]

Description=Prometheus exporter for processors metrics, written in Go with pluggable metric collectors.

Documentation=https://github.com/ncabatoff/process-exporter

After=network.target

[Service]

Type=simple

User=prometheus

WorkingDirectory=/usr/local/process-exporter

ExecStart=/usr/local/process-exporter/process-exporter -config.path=/usr/local/process-exporter/process-exporter-ncabatoff.yaml

Restart=on-failure

[Install]

WantedBy=multi-user.target

　　

启动process-exporter

systemctl daemon-reload

systemctl start process_exporter

systemctl enable process_exporter

　　

验证

curl localhost:9256/metrics

　　

修改Prometheus配置文件

增加

 - job_name: 'process'

    static_configs:

    - targets: ['172.16.8.187:9256']

　　重启Prometheus