# 查看消費者組的topic 消費狀態(tài)
bash kafka-consumer-groups.sh --bootstrap-server 192.168.3.55:9090 --describe --group test2_consumer_group
TOPIC PARTITION CURRENT-OFFSET LOG-END-OFFSET LAG CONSUMER-ID HOST CLIENT-ID
test 0 1000000 1000000 0 consumer-1-8688633a-2f88-4c41-89ca-fd0cd6d19ec7 /127.0.0.1 consumer-1
test 1 1000000 1000000 0 consumer-1-8688633a-2f88-4c41-89ca-fd0cd6d19ec7 /127.0.0.1 consumer-1
test 2 1000000 1000000 0 consumer-1-8688633a-2f88-4c41-89ca-fd0cd6d19ec7 /127.0.0.1 consumer-1
test 3 1000000 1000000 0 consumer-1-8688633a-2f88-4c41-89ca-fd0cd6d19ec7 /127.0.0.1 consumer-1

# 自動發(fā)現(xiàn)
vim consumer-groups.conf
#按消費者組(Group)|Topic格式，寫入自動發(fā)現(xiàn)配置文件
test-group|test
# 執(zhí)行腳本自動發(fā)現(xiàn)指定消費者和topic的分區(qū)
bash consumer-groups.sh discovery
{
    "data": [
        { "{#GROUP}":"test-group", "{#TOPICP}":"test", "{#PARTITION}":"0" },
        { "{#GROUP}":"test-group", "{#TOPICP}":"test", "{#PARTITION}":"1" },
        { "{#GROUP}":"test-group", "{#TOPICP}":"test", "{#PARTITION}":"3" },
        { "{#GROUP}":"test-group", "{#TOPICP}":"test", "{#PARTITION}":"2" }
    ]
}

# 獲取分區(qū)0 lag
bash consumer-groups.sh lag 0
# 獲取分區(qū)1 lag
bash consumer-groups.sh lag 1
# 獲取分區(qū)2 lag
bash consumer-groups.sh lag 2
# 獲取分區(qū)3 lag
bash consumer-groups.sh lag 3

vim consumer-groups.sh
#!/bin/bash
#comment: 根據(jù)消費者組監(jiān)控topic lag，進行監(jiān)控告警
#配置文件說明
#消費者組|Topic
#test-group|test
#獲取topic 信息
cal_topic() {
    if [ $# -ne 2 ]; then
        echo "parameter num error, 讀取topic信息失敗"
        exit 1
    else
        /usr/local/kafka/bin/kafka-consumer-groups.sh --bootstrap-server 192.168.3.55:9092 --describe --group $1 |grep -w $2
    fi
}
#topic+分區(qū)自動發(fā)現(xiàn)
topic_discovery() {
    printf "{\n"
    printf "\t\"data\": [\n"
    for line in `cat /data/scripts/consumer-groups.conf`
    do
        group=`echo ${line} | awk -F'|' '{print $1}'`
        topic=`echo ${line} | awk -F'|' '{print $2}'`
        cal_topic $group $topic > /tmp/consumer-group-tmp
        count=`cat /tmp/consumer-group-tmp|wc -l`
        n=0
        while read line
        do
             n=`expr  $n + 1`
             #判斷最后一行
             if [ $n -eq $count ]; then
                 topicp=`echo $line | awk '{print $1}'`
                 partition=`echo $line  | awk '{print $2}'`
                 printf "\t\t{ \"{#GROUP}\":\"${group}\", \"{#TOPICP}\":\"${topicp}\", \"{#PARTITION}\":\"${partition}\" }\n"
             else
                 topicp=`echo $line | awk '{print $1}'`
                 partition=`echo $line  | awk '{print $2}'`
                 printf "\t\t{ \"{#GROUP}\":\"${group}\", \"{#TOPICP}\":\"${topicp}\", \"{#PARTITION}\":\"${partition}\" },\n"
             fi
        done < /tmp/consumer-group-tmp
    done
    printf "\t]\n"
    printf "}\n"
}


if [ $1 == "discovery" ]; then
    topic_discovery
elif [ $1 == "lag" ];then
    cat /tmp/consumer-group-tmp |awk -v p=$2 '{if($2==p){print $5}}'
else
    echo "Usage: /data/scripts/consumer-group.sh discovery | lag"
fi

告警主機：Kafka_192.168.3.55
主機IP：192.168.3.55
主機組：Kafka
告警時間：2022.03.21 00:23:10
告警等級：Average
告警信息：test-group/test/分區(qū)1:數(shù)據(jù)積壓62
告警項目：topic_lag[test,1]
問題詳情：
test-group/test/1: 62