zabbix监控kafka消费

Posted 2021-12-13 lvcisco

一、Kafka监控的几个指标

1、lag：多少消息没有消费 lag=logsize-offset

2、logsize：Kafka存的消息总数 

3、offset：已经消费的消息

Kafka管理工具 介绍： 

https://www.iteblog.com/archives/1605.html

 

二、查看zookeeper配置

cat /home/app/zookeeper/zookeeper/conf/zoo.cfg | egrep -v "^$|^#"
clientPort=2181

 

三、查看kafka配置

cat /home/app/kafka/kafka/config/server.properties | egrep -v "^$|^#"
port=9092
host.name=192.168.38.87
zookeeper.connect=192.168.38.87:2181,192.168.38.88:2181

 

四、查看kafka的group name

cd /home/app/zookeeper/zookeeper/bin
./zkCli.sh -server 192.168.38.87:2181
ls /consumers/
lijieGroup
quit

 

五、查看kafka的topic_name

/home/app/kafka/kafka/bin/kafka-run-class.sh kafka.tools.ConsumerOffsetChecker --group=lijieGroup --zookeeper=192.168.38.87:2181

 

六、修改zabbix配置文件

因为zabbix用户不能调用kafka的脚本，需要root用户启动zabbix_agent

vim /opt/zabbix/zabbix_agentd.conf
AllowRoot=1
User=root
Include=/opt/zabbix/zabbix_agentd.conf.d/

vim /opt/zabbix/zabbix_agentd.conf.d/kafka_status.conf
UserParameter=kafka.lag[*],/home/zabbix_scripts/kafka_mon.sh $1 $2 lag
UserParameter=kafka.offset[*],/home/zabbix_scripts/kafka_mon.sh $1 $2 offset
UserParameter=kafka.logsize[*],/home/zabbix_scripts/kafka_mon.sh $1 $2 logsize

chown -R zabbix:zabbix /opt/zabbix/zabbix_agentd.conf.d/kafka_status.conf
chmod -R 777 /opt/zabbix/zabbix_agentd.conf.d/kafka_status.conf

 

七、创建监控脚本

mkdir -pv /home/zabbix_scripts/
vim /home/zabbix_scripts/kafka_mon.sh

#!/bin/bash

kafka_ip="127.0.0.1"
kafka_port=2181
topic_name=$1
group_id=$2
pn=$3
/usr/local/kafka_2.11-0.11.0.0/bin/kafka-run-class.sh kafka.tools.ConsumerOffsetChecker --topic=$topic_name --group=$group_id --zookeeper=$kafka_ip:$kafka_port | grep -v Offset > /tmp/kafka-tp-$topic_name-$group_id.info

Offset=0
logSize=0
Lag=0
while read line
do
    Offset=$(($Offset+`echo $line |awk ‘print $4‘`))
    logSize=$(($logSize+`echo $line |awk ‘print $5‘`))
    Lag=$(($Lag+`echo $line |awk ‘print $6‘`))
done < /tmp/kafka_topic_info.log

case $pn in
    offset|Offset)
    echo $Offset
    ;;
    logsize|logSize)
    echo $logSize
    ;;
    lag|Lag)
    echo $Lag
    ;;
    *)
    echo Error
    ;;
esac

　　

 

八、给脚本和对应文件权限

chown -R zabbix:zabbix /home/zabbix_scripts/kafka_mon.sh
chmod -R 777 /home/zabbix_scripts/kafka_mon.sh

touch /tmp/kafka-tp-RouterOnOfflineStateChange-lijieGroup.info
chmod 777 /tmp/kafka-tp-RouterOnOfflineStateChange-lijieGroup.info
chown zabbix:zabbix /tmp/kafka-tp-RouterOnOfflineStateChange-lijieGroup.info

chmod 777  /home/app/kafka/kafka/bin/kafka-run-class.sh

 

九、重启zabbix

/etc/init.d/zabbix-agent restart

 

十、监控上增加3个键值

kafka.offset[RouterOnOfflineStateChange,lijieGroup]
kafka.logsize[RouterOnOfflineStateChange,lijieGroup]
kafka.lag[RouterOnOfflineStateChange,lijieGroup]