使用shell并发执行系统命令-526互联

一解决方案

旧方案为挨个执行shell_exec，串行执行，虽然执行很快，奈何监听命令众多，redis连接有等待时间等，有的还需要执行多次取平均值，所以执行完已超过1min

故，改为并发执行命令，单个命令加timeout，则永远可以在10s左右执行完！

golang形式，需要在该php-server上安装go环境，虽然简单，但生产环境尽量不乱动配置
php-swoole形式，同上，一个shell文件而已，没必要挨个server都装拓展
shell的循环&形式，循环体内正则匹配因为本人不熟悉，直接丢给php文件来处理

二 linux.sh

timest=$(date "+%Y-%m-%d %H:%M:%S")
echo "start: "$timest

SERVER=manager-admin
DEBUG=0
while getopts ":s:d:" opt
do
	case $opt in
		s)
			SERVER="$OPTARG"
		;;
		d)
			DEBUG="$OPTARG"
		;;
	esac
done

mkfifo /home/log/crontab/linux_status
exec 0316<>/home/log/crontab/linux_status
rm -rf /home/log/crontab/linux_status
for ((n=1;n<=10;n++));do #10>cmd num ji ke
	echo >&0316
done

for ((i=1;i<=7;i++));do
	read -u0316
{
	if [ $i == 1 ]
	then
		#负载
		QDATA=$(timeout 10 sar -q 1 5)
		echo "$QDATA" >> "/home/log/crontab/linux_status_"$SERVER"_compelet_q.cron.log"
		process_tm=$(date "+%Y-%m-%d %H:%M:%S")
		echo "负载|end: "$process_tm
	elif [ $i == 2 ]
	then
		#CPU
		CPUDATA=$(timeout 10 sar -u 1 5)
		echo "$CPUDATA" >> "/home/log/crontab/linux_status_"$SERVER"_compelet_cpu.cron.log"
		process_tm=$(date "+%Y-%m-%d %H:%M:%S")
		echo "CPU|end: "$process_tm
	elif [ $i == 3 ]
	then
		#内存
		MEMDATA=$(timeout 10 sar -r 1 5)
		echo "$MEMDATA" >> "/home/log/crontab/linux_status_"$SERVER"_compelet_mem.cron.log"
		process_tm=$(date "+%Y-%m-%d %H:%M:%S")
		echo "内存|end: "$process_tm
	elif [ $i == 4 ]
	then
		#磁盘IO
		IODATA=$(timeout 10 sar -d 1 5)
		echo "$IODATA" >> "/home/log/crontab/linux_status_"$SERVER"_compelet_io.cron.log"
		process_tm=$(date "+%Y-%m-%d %H:%M:%S")
		echo "磁盘IO|end: "$process_tm
	elif [ $i == 5 ]
	then
		#磁盘空间
		DISKDATA=$(timeout 10 df -h)
		echo "$DISKDATA" >> "/home/log/crontab/linux_status_"$SERVER"_compelet_disk.cron.log"
		process_tm=$(date "+%Y-%m-%d %H:%M:%S")
		echo "磁盘空间|end: "$process_tm
	elif [ $i == 6 ]
	then
		#redis_h5
		if [ $SERVER == "manager-admin" ]; then
			php /home/sh/linux_status/linux_status_redis.php $SERVER h5
		fi
		process_tm=$(date "+%Y-%m-%d %H:%M:%S")
		echo "redis_h5|end: "$process_tm
	elif [ $i == 7 ]
	then
		#redis_admin
		if [ $SERVER == "manager-admin" ]; then
			php /home/sh/linux_status/linux_status_redis.php $SERVER admin
		fi
		process_tm=$(date "+%Y-%m-%d %H:%M:%S")
		echo "redis_admin|end: "$process_tm
	else
		echo "not known"$i
	fi

	echo >&0316
}&
done
wait
# echo "linux_status_compelet"
exec 0316<&-
exec 0316>&-
timemid=$(date "+%Y-%m-%d %H:%M:%S")
echo "mid: "$timemid
php /home/sh/linux_status/linux_status.php $SERVER $DEBUG
timeend=$(date "+%Y-%m-%d %H:%M:%S")
echo "end: "$timeend