基于kafka_exporter&prometheus&grafana的kafka监控实现

一、安装配置kafka_exporter

下载kafka_exporter

wget http://*.*.*.45:10000/prometheus/kafka_exporter-1.4.2.linux-amd64.tar.gz
tar -zxcf kafka_exporter-1.4.2.linux-amd64.tar.gz

启动kafka_exporter

./kafka_exporter --kafka.server=*.*.*.77:8423 --kafka.server=*.*.*.78:8423 --kafka.server=*.*.*.79:8423 --kafka.server=*.*.*.80:8423 --kafka.server=*.*.*.81:8423 &

Error Init Kafka Client: kafka: client has run out of available brokers to talk to (Is your cluster reachable?)
报错原因：kafka_exporter版本太低 ！！！

防火墙开放端口（未启动防火墙不需要）

firewall-cmd --add-port=9092/tcp --permanent       	# 开放 9092 端口
firewall-cmd --reload              					# 重新加载 
firewall-cmd --list-ports     						# 查看所有开放端口 
或 
firewall-cmd --add-port=9092/tcp --permanent && firewall-cmd --reload && firewall-cmd --list-ports

kafka_exporter启动脚本

#!/bin/bash 
nohup /data/gxpt/kafka_exporter/kafka_exporter-2.0 --kafka.server=*.*.*.77:8423 --kafka.server=*.*.*.78:8423 --kafka.server=*.*.*.79:8423 --kafka.server=*.*.*.80:8423 --kafka.server=*.*.*.81:8423 --sasl.enabled --sasl.username=user --sasl.password=md5(pwd)  --sasl.mechanism=scram-sha512 --log.enable-sarama  --web.listen-address=:19091 > /dev/null 2>&1  &

其中，kafka监控账号：user/pwd【md5(pwd)】 监听端口号：–web.listen-address=:19091 kafka_exporter

二、安装配置prometheus

在prometheus.yml配置文件添加以下配置

scrape_configs:
  - job_name: "kafka"
    static_configs:
    - targets: ['localhost:19091']

使用sudo权限，后台执行Prometheus启动命令，并启用lifecycle功能，指定监听端口为9090

sudo nohup ./prometheus --web.enable-lifecycle --web.listen-address=:9090 &

三、安装配置grafana

下载grafana

wget https://dl.grafana.com/enterprise/release/grafana-enterprise-10.2.3-1.x86_64.rpm

安装grafana

yum install grafana-enterprise-10.2.3-1.x86_64.rpm

或

sudo yum install -y https://dl.grafana.com/enterprise/release/grafana-enterprise-10.2.3-1.x86_64.rpm

启动grafana，默认端口3000

systemctl start grafana-server.service

登录grafana

http://localhost:3000/dashboards amdin/admin

下载kafka监控模板

https://grafana.com/grafana/dashboards/7589-kafka-exporter-overview/
https://grafana.com/grafana/dashboards/11962-kafka-metrics/

配置普米数据源，导入模板即可显示监控信息；