利用swoole的定时器,每两秒检查一下
class Grep
{
const PORT = 9999;
public function port()
{
$shell = "netstat -anp 2>/dev/null | grep ". self::PORT ." | grep LISTEN | wc -l";
$result = shell_exec($shell);
if($result != 1){
//发送报警
echo date('Ymd H:i:s').'error'.PHP_EOL;
//检测到失败重启一下
$shell = "php /www/web/c_jxx520_xin/public_html/public/index.php index/index/wsServer";
$shell_result = shell_exec($shell);
}else{
echo date('Ymd H:i:s').'SUCCESS'.PHP_EOL;
}
}
}
swoole_timer_tick(2000,function($timer_id){
(new Grep())->port();
echo "time_start".PHP_EOL;
});
进程挂了,重启一下就可以了
在linux上执行 php grep.php指令
不用打开shell窗口,直接脚本无间断后台执行
1.并且记下日记
nohup /www/wdlinux/phps/70/bin/php /www/web/c_jxx520_xin/public_html/swoole/grep.php > /www/web/c_jxx520_xin/public_html/swoole/a.txt &
[root@VM_0_7_centos swoole]# nohup: ignoring input and redirecting stderr to stdout
^C
2.查看记录 tail -f a.txt
[root@VM_0_7_centos swoole]# tail -f a.txt
20181109 00:00:31SUCCESS
time_start
20181109 00:00:33SUCCESS
time_start
20181109 00:00:35SUCCESS
time_start
20181109 00:00:37SUCCESS
time_start
20181109 00:00:39SUCCESS
3.查询下脚本的开启情况
ps aux | grep /www/web/c_jxx520_xin/public_html/swoole/grep.php
[root@VM_0_7_centos swoole]# ps aux | grep /www/web/c_jxx520_xin/public_html/swoole/grep.php
root 28484 0.0 0.7 270524 13380 pts/12 S 00:00 0:00 /www/wdlinux/phps/70/bin/php /www/web/c_jxx520_xin/public_html/swoole/grep.php
root 29050 0.0 0.0 110268 924 pts/12 S+ 00:02 0:00 grep --color=auto /www/web/c_jxx520_xin/public_html/swoole/grep.php
4.关闭进程
kill -9 28484
[root@VM_0_7_centos swoole]# kill -9 29050
5.内存查看情况
df -h
php查看linux内存使用情况: http://www.cnblogs.com/ylong52/p/5561024.html