PHP+shell腳本操作Memcached和Apache Status的實例分享

memcached 進程啟動及監控
1.memcached_inc.sh
設置路徑，端口等訊息。

#!/bin/sh  #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 $MEMCACHED_PID_FILE" MEMCACHED_DAEMON_FILE="memcached_daemon.sh"  ERROR_LOG_FILE="${ROOT}/memcached_${SITE}_${HOST}_${PORT}.log"

2.gm_memcached.sh
控制memcached 啟動，停止，重啟。

#!/bin/sh  #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 running/n"  else   printf "starting memcached/n"   $MEMCACHED    sleep 2    PID=$(cat $MEMCACHED_PID_FILE)   printf "memcached is started PID:$PID/n"    printf "starting memcached daemon/n"   ${ROOT}/${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 ${DAEMON_PID}   fi   printf "memcached daemon is stopped/n"  else   printf "no memcached daemon running/n"  fi   sleep 1   if [ -f "$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 stopped/n"  else   printf "no memcached running/n"  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
監控memcached 進程，如進程失效則自動啟動。

#!/bin/sh  #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 restarted/n" >> $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：

./gm_memcached.sh start #啟動memcached ./gm_memcached.sh stop #停止memcached ./gm_memcached.sh restart #重啟memcached

shell 記錄apache status并自動更新到數據庫
1. 獲取apache status
monitor_log.sh

#!/bin/bash  #連接數 site_connects=$(netstat -ant | grep $ip:80 | wc -l) #當前連接數 site_cur_connects=$(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#]/n/n"  exit 0

在終端設置crontab執行

* * * * * /home/fdipzone/monitor_log.sh >> /home/fdipzone/monitor.log

2. 將apache status log 寫入數據庫
save_monitor_log.php

<?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."/r/n");  }   } // class end  ?>

在終端crontab執行

0 0 * * * php /home/fdipzone/save_monitor_log.php

table monitor_log struct

CREATE TABLE IF NOT EXISTS `monitor_log` (  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,  `site` varchar(20) NOT NULL,  `connects` int(10) unsigned NOT NULL DEFAULT '0',  `cur_connects` int(10) unsigned NOT NULL DEFAULT '0',  `TIME_WAIT` int(10) unsigned NOT NULL DEFAULT '0',  `CLOSE_WAIT` int(10) unsigned NOT NULL DEFAULT '0',  `SYN_SENT` int(10) unsigned NOT NULL DEFAULT '0',  `SYN_RECV` int(10) unsigned NOT NULL DEFAULT '0',  `FIN_WAIT1` int(10) unsigned NOT NULL DEFAULT '0',  `FIN_WAIT2` int(10) unsigned NOT NULL DEFAULT '0',  `ESTABLISHED` int(10) unsigned NOT NULL DEFAULT '0',  `LAST_ACK` int(10) unsigned NOT NULL DEFAULT '0',  `CLOSING` int(10) unsigned NOT NULL DEFAULT '0',  `addtime` datetime NOT NULL,  PRIMARY KEY (`id`),  KEY `connects` (`connects`),  KEY `cur_connects` (`cur_connects`),  KEY `TIME_WAIT` (`TIME_WAIT`),  KEY `CLOSE_WAIT` (`CLOSE_WAIT`),  KEY `SYN_SENT` (`SYN_SENT`),  KEY `SYN_RECV` (`SYN_RECV`),  KEY `FIN_WAIT1` (`FIN_WAIT1`),  KEY `FIN_WAIT2` (`FIN_WAIT2`),  KEY `ESTABLISHED` (`ESTABLISHED`),  KEY `LAST_ACK` (`LAST_ACK`),  KEY `CLOSING` (`CLOSING`),  KEY `addtime` (`addtime`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 ;