Introduction
In the operation and maintenance monitoring system, there is generally a program called an agent . It runs on the collected machine and is used to collect information about the machine or the service running on it. Commonly collected data include the machine's cpu, memory, disk, etc., or information about some common open source software running on it (such as the operating information of rocketmq). Here is a small program for collecting machine information: node_exporter , and promethues An agent used in conjunction.
background
Rocketmq is used as a middleware messaging system in the company's project. I used promethues+grafana as the monitoring of this system. Using exporter as a collector, I used node_exporter and rocketmq_exporter to collect the machine node information of rocketmq and the service information of rocketmq, respectively.
project address
node_exporter：https://github.com/prometheus/node_exporter/
method of obtaining
You can download the source code for local compilation or use the released binary package directly, here we directly use the release version of 1.0.0
#Download binary compressed package wget https://github.com/prometheus/node_exporter/releases/download/v1.0.0/node_exporter-1.0.0.linux-amd64.tar.gz #Unzip to /usr/local directory tar xzvf node_exporter-1.0.0.linux-amd64.tar.gz -C /usr/local/ #Rename after entering the /usr/local directory cd /usr/local mv node_exporter-1.0.0.linux-amd64 node_exporter
Configure systemd management
1) Execute: vi /etc/systemd/system/node_exporter.service, copy and paste the following
[Unit]
Description=node_exporter
After=network.target
[Service]
ExecStart=/usr/local/node_exporter/node_exporter
Restart=on-failure
[Install]
WantedBy=multi-user.target
2) Configure startup
#Reload the configuration under systemd systemctl daemon-reload #Configure to start, if you want to turn off systemctl disable node_exporter systemctl enable node_exporter
3) Start and check node_exporter
#Start node_exporter systemctl start node_exporter #Check node_exporter status systemctl status node_exporter
4) View log
Execute: systemctl status node_exporter -l
So far, the node_exporter has been built on the collected machine. Later I will continue to share how to install rockermq-exporter on the machine and configure node_exporter in the promethues and grafana panels.
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