check_kafka.sh查看kafka信息

#! /bin/bash
export LANG=en_US.UTF-8

PORT=
LOG_PATH=
FLAGEID=
CURNUM=             #当前的性能参数
CORENUM=1

kafka_result_json=""

function gotErr(){
    if [ "$1" -eq 3 ];then 
        echo "无法获取到指标,疑似组件故障,请确认并请检查监控脚本和运维平台配置"
    elif [ "$1" -eq 4 ];then
        echo "该组件进程为僵尸进程,请确认并请检查该组件状态"
    fi

    exit $1
}

#返回是否服务是否存活
function isAlive(){
    CORENUM=`cat /proc/cpuinfo |grep "physical id"|wc -l`
    FLAGEID=$(netstat -lnp | grep -w $PORT | grep LISTEN | awk '{print $7}'| awk -F '/' '{print $1}' |head -n 1)
    if [[ "$FLAGEID" == "" ]];then
        gotErr 3
    fi
    ZOMBIE=$(ps -A -ostat,pid | grep -e '^[Zz]' | grep $FLAGEID)
    if [[ "$ZOMBIE" != "" ]];then
       gotErr 4
    fi
    kafka_result_json="$kafka_result_json,'FLAGEPID':'$FLAGEID'"
}


#处理连接数
function getConnNum(){
    CURNUM=$(sudo netstat -apn | grep $FLAGEID | grep ESTABLISHED | wc -l)
}

#ps aux 4是内存 累加4的值
function getMemory(){
    CURNUM=$(ps aux | grep $FLAGEID |awk 'BEGIN{sum=0}{sum+=$4}END{print sum}')
}

#ps aux 3是CPU 累加3的值
function getCPU(){
    CURNUM=$(ps aux | grep $FLAGEID |awk 'BEGIN{sum=0}{sum+=$3}END{print sum}')
    if [ "$CORENUM" -ne 0 ];then
       CURNUM=$(printf "%.2f" `echo "scale=2;$CURNUM/$CORENUM" | bc`)
    fi
}

#ps elm 是PID所包含的线程数目
function getThreadNum(){
    CURNUM=$(ps -mp $FLAGEID |wc -l | awk 'BEGIN{sum=0}{sum=$1-2}END{print sum}')
}

#ps -eo pid,etime 是查询进程运行时间
function getRuntime(){
    CURNUM=$(ps -eo pid,etime | grep $FLAGEID |awk '{if($1=='$FLAGEID') print $2}')
}

#ps -eo pid,lstart是查询进程的开始时间
function getStarttime(){
    CURNUM=$(ps -eo pid,lstart | grep $FLAGEID |awk '{if($1=='$FLAGEID') print $2 ,$3 ,$4 ,$5 ,$6}')
}

function getBacklogData(){
    if [ "$LOG_PATH" == "" ];then
        CURNUM=
        return
    fi
    CURNUM=`du -b ${LOG_PATH}|sort -rn|head -n 1|awk '{printf "%.2f\n", ($1/1024/1024/1024)}'`
}

#采集指标
function analysisStat(){
    getConnNum
    parseFileds "ConnectionNum"

    getMemory
    parseFileds "Memory"

    getCPU
    parseFileds "CPU"

    getThreadNum
    parseFileds "Thread"

    getRuntime
    parseFileds "RUNTIME"

    getStarttime
    parseFileds "STARTTIME"

    if [[ "$LOG_PATH" == "" || "$LOG_PATH" == "<<log_path>>" ]];then
        CURNUM=""
        parseFileds "backlogData"
        return
    fi

    getBacklogData
    parseFileds "backlogData"
}

#组装指标
function parseFileds(){
kafka_result_json="$kafka_result_json,'$1':'$CURNUM'"
}

#输出结果
function analysisResult(){
    result="{'cpname':'kafka',${kafka_result_json#*,}}"
    result=`echo ${result//\'/\"}`
    echo $result
}

#输出错误信息并且退出程序
function showHelp(){
    if [ "$1" != "" ];then
        echo "请输入$1"
    fi
    echo "check_kafaka.sh 可以监听本地的kafka的状态 参数如下"
    echo "check_kafaka.sh  [-p <port>] [-l <log_path>]"
    echo "-p <port> 端口号"
    echo "-l <log_path> kafka logs 路径"
    exit 1
}

while getopts "p:l:h" arg
do
    case $arg in
        p)
            PORT=$OPTARG
            ;;
        l)
            LOG_PATH=$OPTARG
            ;;
        h)
            showHelp
            ;;
        ?) 
            showHelp
            ;;
    esac
done

if [[ "$PORT" == "" ]];then
    showHelp "特征项"
fi


#插件正题部分 
#确定存活的
#启动
#分析

isAlive
analysisStat
analysisResult