查看Redis集群各项指标

心已赠人 2023-06-08 14:00 77阅读 0赞

> 1.依赖sshpass命令，所以需要先安装sshpass-1.06-1.el7.x86\_64.rpm

*  可以同时查看多个Redis节点的指标

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*  授权

chmod +x check-redis.sh

#!/bin/sh
    #set -ex
    
    #日志名称
    LOG_FILE=redis_check_$(date "+%Y%m%d").log
    #注释变量或密码留空则执行脚本时输入
    SSHPASS=[password]
    REDISPASS=[password]
    
    if [[ ! -x $(command -v sshpass 2> /dev/null) ]]; then
      echo -e 'sshpass does not exist, you should install sshpass.'
      exit 0
    fi
    
    if [[ -z ${SSHPASS} ]]; then
      read -s -p 'Enter SSH password for hosts:' SSHPASS
      export SSHPASS
      echo
    else
      export SSHPASS
    fi
    
    if [[ -z ${REDISPASS} ]]; then
      read -s -p 'Enter Redis password for hosts:' REDISPASS
      export REDISPASS
      echo
    else
      export REDISPASS
    fi
    
    cat << EOF > ~/.ssh/config
    StrictHostKeyChecking no
    EOF
    
    function format_output { 
      COL=$(($(tput cols) - 2))
      IFS= read -r -d '\n' INPUT
      MAX_LEN=$(echo "${INPUT}" | awk '{ print length($0)}' | awk 'BEGIN { max = 0} { if ($1+0 > max+0) { max=$1; content=$0} } END { print content}')
      if [[ ${MAX_LEN} -gt ${COL} ]]; then
        MAX_LEN=${COL}
      fi
      MLINE=$(awk -v len=${ MAX_LEN} 'BEGIN{OFS="─"; NF=len+1; print}')
      echo "┌${MLINE}┐"
      IFS=''
      echo -n "${INPUT}" | while read LINE; do
        if [[ -z ${LINE} ]]; then
          echo "├${MLINE}┤"
        else
          printf "│%-${MAX_LEN}s│\n" "${LINE}"
        fi
      done
      echo -e "└${MLINE}┘\n"
    }
    
    function ping_host { 
      ping -c 1 -W 1 $1 2>&1 > /dev/null || (echo -e "Host $1: Ping Failed.\n" && exit 1)
    }
    
    
    function get_redis_service { 
      for HOST_IP in $(echo $1 | tr ',' ' '); do
        (ping_host ${HOST_IP} && sshpass -e ssh root@${HOST_IP} 'bash -s' << EOF) | format_output | tee -a ${LOG_FILE}
    export LANG=en_US.UTF-8
    echo -e "Redis Server: ${HOST_IP}\n"
    echo -e "Redis Process:"
    ps aux | grep [r]edis-server
    echo -e "\nRedis Info:"
    /opt/redis-5.0.3/src/redis-cli -a ${REDISPASS} info 2>&1 |sed -r 's/\r//' | grep -E 'used_memory:|used_memory_rss_human:\ |used_memory_peak:|connected_clients:|blocked_clients:|rejected_connections:|keyspace_hits:|keyspace_misses:\ |instantaneous_ops_per_sec:|rejected_connections:|rdb_last_bgsave_status:|aof_last_bgrewrite_status:'
    EOF
      done
    }
    
    get_redis_service 192.168.1.1,192.168.1.2,192.168.1.3
    
    rm -f ~/.ssh/config

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