redis监控脚本

redis监控脚本

#!/bin/bash

. /etc/profile &> /dev/null
R_PORT=6379
RIP='-h 127.0.0.1'
RPW='-a'
RCONF=/usr/local/redis/etc/redis.conf

status(){
	R_COMMAND=$1 
	redis-cli $RIP -p $R_PORT info > /tmp/redis.tmp
	REDIS_STAT_VALUE=$(grep -w "$R_COMMAND" /tmp/redis.tmp |cut -d ':' -f2)
	echo $REDIS_STAT_VALUE  
}
c_client_use(){		#连接数使用比率,大于1时redis不能再新建连接
	max_cli=`sed -rn "s#.*maxclients[[:blank:]]([[:digit:]])#\1#p" $RCONF`
	c_cli=`status connected_clients`
	echo $c_cli $max_cli|awk '{printf("%.2f\n", ($1/$2)*100)}'
}
k_hit(){		#key的命中率
	hit=`status keyspace_hits`
	miss=`status keyspace_misses`
	echo $hit $miss|awk '{printf("%.2f\n", $1/($1+$2)*100)}'
}
m_use_rate(){ 		#内存使用比率
	use=`status used_memory`
	total_mem=`status maxmemory`
	echo $use $total_mem|awk '{printf("%.2f\n", $1/$2*100)}'
}

var='status c_client_use k_hit m_use_rate'
for i in $var ;do
	if [[ $1 == 'status' ]];then
		status $2
		num=1
		break
	elif [[ $i == $1 ]];then
		$i
		num=1
		break
	else
		num=0
	fi
done
if [[ $num == '0' ]];then
	echo " 例: $0 `echo $var|tr -t ' ' '|'`"
fi