ES節(jié)點的自動重啟邏輯：

#!/bin/bash

log="/home/srvop/es_restart.log"

send_mail(){
    to_receiver=""
    subject=$1
    mailbody=$2
    curl -H "Content-type: application/json;charset=utf-8" -X POST  -d '{"to_receiver": $to_receiver, "subject": $subject, "mailbody": $mailbody}'  http://ip:port/login

}


check_es(){
    insName=$1
    port=$2
    ps aux | grep $insName | grep -v grep  > /dev/null  ; proc_status=`echo $?`
    netstat -ntlp | grep $port | grep -v grep > /dev/null ; port_status=`echo $?`
    if [[ $proc_status -ne 0 || $port_status -ne 0  ]]; then
        now=`env LANG=en_US.UTF-8 date +"%Y-%m-%d %H:%M:%S"`
        echo "$now $insName process or $port port non-existent,check again." | tee -a  $log
        sleep 10
        # 第一次判斷檢測失敗后再次檢測邏輯
        ps aux | grep $insName | grep -v grep  > /dev/null  ; proc_status=`echo $?`
        netstat -ntlp | grep $port | grep -v grep > /dev/null ; port_status=`echo $?`
        if [[  $proc_status -ne 0 && $port_status -ne 0  ]]; then
            # 第二次仍檢測到應用宕機后，啟動應用邏輯
            now=`env LANG=en_US.UTF-8 date +"%Y-%m-%d %H:%M:%S"`
            echo "$now $insName process and $port port non-existent,and restart proc now." | tee -a  $log
            cd /srvop/apache/servers/szsc-smt-es-prd-$insName/bin/ ; ./elasticsearch -d
            #cd /srvop/apache/servers/szsc-smt-es-prd-$insName/bin/ ; touch  $insName.txt 
            now=`env LANG=en_US.UTF-8 date +"%Y-%m-%d %H:%M:%S"`
            echo "$now $insName has been restarted." | tee -a  $log
            sleep 120
            # 啟動應用后檢測是否啟動成功邏輯
            ps aux | grep $insName | grep -v grep  > /dev/null  ; proc_status=`echo $?`
            netstat -ntlp | grep $port | grep -v grep > /dev/null ; port_status=`echo $?`
            now=`env LANG=en_US.UTF-8 date +"%Y-%m-%d %H:%M:%S"`
            if [[  $proc_status -eq 0 && $port_status -eq 0 ]]; then
                echo "$now $insName has been restarted successfully." | tee -a  $log
                #send_mail "數(shù)據(jù)平臺ES節(jié)點$insName 自動重啟成功" "$now  數(shù)據(jù)平臺ES節(jié)點$insName 系統(tǒng)檢測到宕機，現(xiàn)已重啟成功"
            else
                echo "$now $insName has been restarted, but the restart failed. Please check manually." | tee -a  $log
                #send_mail "數(shù)據(jù)平臺ES節(jié)點$insName 自動重啟失敗" "$now  數(shù)據(jù)平臺ES節(jié)點$insName 系統(tǒng)檢測到宕機，已嘗試重啟，但重啟失敗，請人工檢查原因."
            fi

        fi


    fi
}

main(){
    check_es ins004 30109 &
    check_es ins005 30110 &
    check_es ins006 30111 &
    wait
}
main