亚马逊redis监控脚本，并发送信息到企业微信

素颜马尾好姑娘i 2022-10-09 12:22 95阅读 0赞

1、监控脚本内容

#!/bin/bash
 
 REDISCLI="/usr/bin/redis-cli"
 HOST="127.0.0.1"
 PORT=6379
 
 datetime=`date '+%Y%m%d%H%M%S'`
 
 #内存暂用率计算函数
 memory_rate() { 
 USED=$2
 ALL=26
 COMPY=1024
 ALL=`expr $ALL \* $COMPY \* $COMPY \* $COMPY`
 rate=`echo "scale=2; $USED * 100 / $ALL" | bc| awk '{printf "%.2f", $0}'`
 echo $1 $rate"%" >> keyvalue/keyvalue-$datetime\.txt
 }
 
 #cpu暂用率计算函数
 cpu_rate() { 
 start_time=1624531380
 now_time=`date +%s`
 time_diff=`expr $now_time - $start_time`
 start_cpu=$3
 now_cpu=$2
 cpu_diff=`echo "scale=2; $now_cpu - $start_cpu"|bc|awk '{printf "%.2f", $0}'`
 cpu_rate=`echo "scale=2; $cpu_diff * 100 / $time_diff" | bc| awk '{printf "%.2f", $0}'`
 echo $1 $cpu_rate"%" >> keyvalue/keyvalue-$datetime\.txt
 }
 
 #企业微信id
 WEBHOOK_URL="https://qyapi.weixin.qq.com/cgi-bin/webhook/send?key=sa4sfg4567-sd45-567h-sf56-sdfgecg546df"
 
 #超过阈值的键时发送告警信息函数
 message() { 
 msg1="{\"msgtype\": \"markdown\",\"markdown\": {\"content\": \"# **REDIS节点系统监控****存在异常问题**\\n #### **$1状态异常**\\n > 检测时间： "
 msg2=`date '+%Y-%m-%d %H:%M:%S'`
 msg3=" \\n > $i的当前值：$2\"}}"
 msg="$msg1 $msg2 $msg3"
 
 curl --location --request POST ${WEBHOOK_URL} --header 'Content-Type: application/json' -d "$msg"
 }
 
 #监控后正常返回信息
 message_successed() { 
 msg4="{\"msgtype\": \"markdown\",\"markdown\": {\"content\": \"# **REDIS节点系统监控****不存在异常问题**\\n > 监控检测时间： "
 msg5=`date '+%Y-%m-%d %H:%M:%S'`
 msg6=" \\n > 监控检测结果：不存在异常阈值状态\"}}"
 msg_successed="$msg4 $msg5 $msg6"
 
 curl --location --request POST ${WEBHOOK_URL} --header 'Content-Type: application/json' -d "$msg_successed"
 }
 
 
 #监控脚本正文
 for i in connected_clients blocked_clients used_memory used_memory_rss used_memory_peak used_memory_lua used_cpu_sys used_cpu_user used_cpu_sys_children used_cpu_user_children rdb_last_bgsave_status aof_last_bgrewrite_status aof_last_write_status hit_rate
 do
 # 监控redis撞击率
 if [[ $i == "hit_rate" ]];then
 HIT=`$REDISCLI -h $HOST -p $PORT info | grep -w "keyspace_hits" | awk -F':' '{print $2}'| tr -d '\r'`
 MISS=`$REDISCLI -h $HOST -p $PORT info | grep -w "keyspace_misses" | awk -F':' '{print $2}'| tr -d '\r'`
 ALL=`expr $HIT + $MISS`
 hit_rate=`echo "scale=2; $HIT * 100 / $ALL"|bc|awk '{printf "%.2f", $0}'`
 echo $i $hit_rate"%" >> keyvalue/keyvalue-$datetime\.txt
 #撞击率低于85.99时发送告警邮件
 if [[ $hit_rate < 85.99 ]];then
 message $i $hit_rate
 fi
 else
 #获取redis的info信息
 result=`$REDISCLI -h $HOST -p $PORT info | grep -w "$i" | awk -F':' '{print $2}'|tr -d '\r'`
 
 if [[ $i == "used_memory" ]];then
 #获取redis用户使用内存占用情况
 memory_rate $i $result
 #当redis用户使用内存超过9.99%发送告警信息
 if [[ $rate > 9.99 ]];then
 #传入key和内存占用率发送信息
 message $i $rate
 fi
 elif [[ $i == "used_memory_rss" ]];then
 #获取redis系统使用内存占用情况
 memory_rate $i $result
 #当redis系统内存使用率超过9.99%发送告警信息
 if [[ $rate > 9.99 ]];then
 #传入key和内存占用率发送信息
 message $i $rate
 fi
 elif [[ $i == "used_cpu_sys" ]];then
 #传入key和key值和指定时间的cpu状态值获取redis系统使用cpu情况
 cpu_rate $i $result 78758 
 #当redis系统cpu使用超过79.99%发送告警信息
 if [[ $cpu_rate > 79.99 ]];then
 #传入key和cpu当前值发送信息
 message "used_cpu_sys" $result
 fi
 elif [[ $i == "used_cpu_user" ]];then
 	 #传入key和key值和指定时间的cpu状态值获取redis用户使用cpu情况
 cpu_rate $i $result 106305 
 #当redis系统内存使用率超过9.99%发送告警信息
 if [[ $cpu_rate > 79.99 ]];then
 #传入key和内存占用率发送信息
 message "used_cpu_user" $result
 fi
 elif [[ $i == "connected_clients" ]]&&[[ $result > 500 ]];then
 message $i $result
 echo $i $rate >> keyvalue/keyvalue-$datetime\.txt
 elif [[ $i == "blocked_clients" ]]&&[[ $result > 0.01 ]];then
 message $i $result
 echo $i $result >> keyvalue/keyvalue-$datetime\.txt
 elif [[ $i == "rdb_last_bgsave_status" ]]&&[[ $result != "ok" ]];then
 message "最近一次在持久化" $result
 echo $i $result >> keyvalue/keyvalue-$datetime\.txt
 elif [[ $i == "aof_last_bgrewrite_status" ]]&&[[ $result != "ok" ]];then
 message "上次bgrewriteaof操作" $result
 echo $i $result >> keyvalue/keyvalue-$datetime\.txt
 elif [[ $i == "aof_last_write_status" ]]&&[[ $result != "ok" ]];then
 message "上次aof写入" $result
 echo $i $result >> keyvalue/keyvalue-$datetime\.txt
 else
 echo $i $result >> keyvalue/keyvalue-$datetime\.txt
 fi
 fi
 done

2、执行后个监控值

cat keyvalue/keyvalue-20210624185958.txt 
    connected_clients 267
    blocked_clients 0
    used_memory 0.13%
    used_memory_rss 1.22%
    used_memory_peak 13471179616
    used_memory_lua 46080
    used_cpu_sys 5.43%
    used_cpu_user 6.81%
    used_cpu_sys_children 0.724765
    used_cpu_user_children 4.704764
    rdb_last_bgsave_status ok
    aof_last_bgrewrite_status ok
    aof_last_write_status ok
    hit_rate 89.84%

3、异常时消息发送图  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JhaWR1XzM4NDMyNzMy_size_16_color_FFFFFF_t_70]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2JhaWR1XzM4NDMyNzMy_size_16_color_FFFFFF_t_70]: /images/20221005/8080941992f84d85b3807c8b7d310258.png