为了使Promethuse可以对进程进行监控，可以用利用process-exporter来检测所选进程的存活状态

一、安装process-exporter

1、安装部署

wget https://github.com/ncabatoff/process-exporter/releases/download/v0.6.0/process-exporter-0.6.0.linux-amd64.tar.gz tar zxvf process-exporter-0.6.0.linux-amd64.tar.gz mv process-exporter-0.6.0.linux-amd64 /usr/local/exporter/process-exporter

2、配置文件，监控特定进程 vi /usr/local/exporter/process-exporter/process-exporter.yaml

process_names:

- name: "{{.Matches}}"
  cmdline:
  - 'redis-server'


name: "{{.Matches}}"
cmdline:

'mysqld'



name: "{{.ExeFull}}"
cmdline:

'/usr/bin/mongod -f /etc/mongod.conf'



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'

监控所有服务进程 (可以忽略)

process_names: - name: "{{.Comm}}" cmdline: - '.+'

命令参数解释：

3、启动命令

nohup /usr/local/exporter/process-exporter/process-exporter -config.path=/usr/local/exporter/process-exporter/process-exporter.yaml &

或者采用system制作启动文件

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/exporter/process-exporter
ExecStart=/usr/local/exporter/process-exporter/process-exporter -config.path=/usr/local/exporter/process-exporter/process-exporter.yaml
Restart=on-failure
[Install]
WantedBy=multi-user.target
启动命令
systemctl daemon-reload
systemctl start process_exporter
systemctl enable process_exporter

4、访问 curl localhost:9256/metrics

二、配置prometheus采集进程数据

1、修改配置文件 vi /usr/local/prometheus/prometheus.yml
- job_name: 'process' static_configs:
  - targets: ['114.67.116.119:9256']
2、重启动

kill 26765 /usr/local/prometheus/prometheus --config.file=/usr/local/prometheus/prometheus.yml 或者 kill -hup 26765
3、访问web