PHP+shell脚本操作Memcached和Apache Status的实例分享

发布时间：2020-05-25 14:31:43 所属栏目：PHP 来源：互联网

导读：这篇文章主要介绍了PHP环境下使用shell脚本操作Memcached和Apache Status的方法,分别还可以控制Memcached进程的启动以及记录Apache Status数据到数据库,需要的朋友可以参考下

memcached 进程启动及监控

1.memcached_inc.sh 设置路径，端口等讯息。

config include

HOST=$(hostname)
SITE="mysite"
PORT=11211

MEMCACHED_PID_FILE="/tmp/memcached.pid"
MEMCACHED_DAEMON_PID_FILE="/tmp/memcached_daemon.pid"

MEMCACHED="memcached -d -m 64 -p $PORT -u memcache -l 127.0.0.1 -P $MEMCACHED_PID_FILE"
MEMCACHED_DAEMON_FILE="memcached_daemon.sh"

ERROR_LOGFILE="${ROOT}/memcached${SITE}${HOST}${PORT}.log"

2.gm_memcached.sh 控制memcached 启动，停止，重启。

memcached start and stop

$1 action

ROOT=$(cd "$(dirname "$0")"; pwd)

. ${ROOT}/memcached_inc.sh

start() {

if [ -f "$MEMCACHED_PID_FILE" ] && [ -s "$MEMCACHED_PID_FILE" ]; then
printf "memcached already runningn"
else
printf "starting memcachedn"
$MEMCACHED

sleep 2

PID=$(cat $MEMCACHED_PID_FILE)
printf "memcached is started PID:$PIDn"

printf "starting memcached daemonn"
${ROOT}/${MEMCACHED_DAEMON_FILE} &
DAEMON_PID=$!
echo ${DAEMON_PID} > ${MEMCACHED_DAEMON_PID_FILE}
printf "memcached daemon is started PID:${DAEMON_PID}n"
fi

}

stop() {

if [ -f "$MEMCACHED_DAEMON_PID_FILE" ] && [ -s "$MEMCACHED_DAEMON_PID_FILE" ]; then
DAEMON_PID=$(cat $MEMCACHED_DAEMON_PID_FILE)
rm -f ${MEMCACHED_DAEMON_PID_FILE}
if [ ! -z ${DAEMON_PID} ]; then
kill -9 ${DAEMON_PID}
fi
printf "memcached daemon is stoppedn"
else
printf "no memcached daemon runningn"
fi

sleep 1

if [ -f "$MEMCACHED_PID_FILE" ] && [ -s "$MEMCACHED_PID_FILE" ]; then
PID=$(cat $MEMCACHED_PID_FILE)
rm -f ${MEMCACHED_PID_FILE}
if [ ! -z ${PID} ]; then
kill -9 ${PID}
fi
printf "memcached is stoppedn"
else
printf "no memcached runningn"
fi

}

case "$1" in

start)
start
;;

stop)
stop
;;

restart)
stop
sleep 3
start
;;

*)
printf "Usage:$0 {start|stop|restart}n"
exit 1

esac

exit 0

3.memcached_daemon.sh 监控memcached 进程，如进程失效则自动启动。

memcached daemon

ROOT=$(cd "$(dirname "$0")"; pwd)

. ${ROOT}/memcached_inc.sh

while :
do
if [ -f "$MEMCACHED_PID_FILE" ] && [ -s "$MEMCACHED_PID_FILE" ]; then
PID=$(cat $MEMCACHED_PID_FILE)
else
PID=""
fi

if [ -z "$PID" ] || [ -z $(ps aux|awk '{print $2}' | grep "^$PID$") ]; then
$MEMCACHED
sleep 1
printf "[$(date +%Y-%m-%d' '%H:%M:%S)] ${SITE} ${HOST} memcached ${PORT} is restartedn" >> $ERROR_LOG_FILE
echo "Subject: ${SITE} ${HOST} memcached ${PORT} is restarted $(date +%Y-%m-%d' '%H:%M:%S)" | sendmail me@gmail.com
fi

sleep 5

done

exit 0

使用方法：

shell 记录apache status并自动更新到数据库

1. 获取apache status monitor_log.sh

连接数

site_connects=$(netstat -ant | grep $ip:80 | wc -l)

当前连接数

site_cur_connects=$(netstat -ant | grep $ip:80 | grep EST | wc -l)

apache

apache_speed=$(netstat -n | awk '/^tcp/ {++S[$NF]} END {for(a in S) print a,S[a]}')

printf "[#start#]n$(date '+%Y-%m-%d %H:%M:%S')n"
printf "connects:${site_connects}n"
printf "cur connects:${site_cur_connects}n"
printf "apache_speed:n${apache_speed}n[#end#]nn"

exit 0

在终端设置crontab执行

> /home/fdipzone/monitor.log

2. 将apache status log 写入数据库 save_monitor_log.php

$logfile = dirname(FILE).'/monitor.log';

$dbconfig = array(
'host' => '192.168.1.100','username' => 'username','password' => 'password','dbname' => 'mydb','tabname' => 'monitor_log'
);

$obj = new SaveMonitorLog($dbconfig,'myweb');
$obj->load($logfile);

// 讀取monitor log，記錄入db，查看db
class SaveMonitorLog{ // class start

private $_apache_state = array('TIME_WAIT','CLOSE_WAIT','SYN_SENT','SYN_RECV','FIN_WAIT1','FIN_WAIT2','ESTABLISHED','LAST_ACK','CLOSING');
private $_dbconfig = array();
private $_site = null;

/* init /
public function __construct($dbconfig=array(),$site='web'){
if(!isset($dbconfig['host']) || !isset($dbconfig['username']) || !isset($dbconfig['password']) || !isset($dbconfig['dbname']) || !isset($dbconfig['tabname'])){
$this->debug('dbconfig error');
}
$this->_dbconfig = $dbconfig;
$this->_site = $site;
$this->connectdb();
}

/** load data

@param String $logfile log文件
@return boolean
*/
public function load($logfile){

// 讀取log數據
if(file_exists($logfile)){
$logdata = file_get_contents($logfile);
// 清空monitor.log
file_put_contents($logfile,'',true);
}else{
return false;
}

// 正則分析數據 [#start#]*[#end#]
preg_match_all('/

start

(.*?)

end

.*?/si',$logdata,$data);

if(isset($data[1]) && count($data[1])>0){
$alldata = $data[1];
foreach($alldata as $val){
$indb = $this->parser($val);
$newid = $this->addtodb($indb);
}
}

}

/** parser data

@param Array $data
@return Array
*/
private function parser($data){
$indb = array();
$tmp = explode(chr(10),$data); // 按換行分隔

$indb['site'] = $this->_site;
$indb['addtime'] = $tmp[1];
$indb['connects'] = array_pop(explode(':',$tmp[2]));
$indb['cur_connects'] = array_pop(explode(':',$tmp[3]));

for($i=5,$max=count($tmp)-2; $i<$max; $i++){
list($key,$num) = explode(' ',$tmp[$i]);
if(in_array($key,$this->_apache_state)){
$indb[$key] = $num;
}
}

return $indb;
}

/* connect db /
private function connectdb(){
$conn=@mysql_connect($this->_dbconfig['host'],$this->_dbconfig['username'],$this->_dbconfig['password']) or die(mysql_error());
mysql_select_db($this->_dbconfig['dbname'],$conn) or die(mysql_error());
}

/* add to db /
private function addtodb($indb){
$insertkey = '';
$insertval = '';
if($indb){
foreach($indb as $key=>$val){
$insertkey .= $insertkey? ",".$key : $key;
$insertval .= $insertval? ",'".mysql_escape_string(trim($val))."'" : "'".mysql_escape_string(trim($val))."'";
}
$sqlstr = "insert into ".$this->_dbconfig['tabname']."($insertkey) values($insertval)";
$query = @mysql_query($sqlstr) or die(mysql_error());
$id = mysql_insert_id();
return $id? $id : false;
}
}

/* debug /
private function debug($msg){
exit($msg."rn");
}

} // class end

在终端crontab执行

table monitor_log struct

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