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 ;
