一、Kafka监控的几个指标
1、lag：多少消息没有消费 2、logsize：Kafka存的消息总数 3、offset：已经消费的消息二、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
#Group Topic Pid Offset logSize Lag Owner
#lijieGroup RouterOnOfflineStateChange 0 17073689 17073689 0 lijieGroup_localhost.localdomain-1492764195889-abda96d0-0
#cat /tmp/kafka-tp.info | grep -v Offset | awk '{print $4}'
kafka_ip="192.168.38.87"
kafka_port=2181
topic_name=$1
group_id=$2
pn=$3
/home/app/kafka/kafka/bin/kafka-run-class.sh kafka.tools.ConsumerOffsetChecker --topic=$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 $6}'`))
done < /tmp/kafka-tp-${topic_name}-${group_id}.info
#echo Offset :$Offset
#echo logSize :$logSize
#echo Lag : $Lag
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
/opt/zabbix/sbin/zabbix_agentd -c /opt/zabbix/zabbix_agentd.conf十、监控上增加3个键值
kafka.offset[RouterOnOfflineStateChange,lijieGroup] kafka.logsize[RouterOnOfflineStateChange,lijieGroup] kafka.lag[RouterOnOfflineStateChange,lijieGroup]
