


Example sharing of PHP shell script operating Memcached and Apache Status, memcachedapache_PHP tutorial
PHP+shell脚本操作Memcached和Apache Status的实例分享,memcachedapache
memcached 进程启动及监控
1.memcached_inc.sh
设置路径,端口等讯息。
#!/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 启动,停止,重启。
#!/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:$0 {start|stop|restart}\n" exit 1 esac exit 0
3.memcached_daemon.sh
监控memcached 进程,如进程失效则自动启动。
#!/bin/sh #memcached daemon ROOT=$(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 $(date +%Y-%m-%d' '%H:%M:%S)" | sendmail me@gmail.com fi sleep 5 done exit 0
使用方法:
./gm_memcached.sh start #启动memcached ./gm_memcached.sh stop #停止memcached ./gm_memcached.sh restart #重启memcached
shell 记录apache status并自动更新到数据库
1. 获取apache status
monitor_log.sh
#!/bin/bash #连接数 site_connects=$(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#]\n\n" exit 0
在终端设置crontab执行
* * * * * /home/fdipzone/monitor_log.sh >> /home/fdipzone/monitor.log
2. 将apache status log 写入数据库
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 ?>
在终端crontab执行
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 ;
您可能感兴趣的文章:
- PHP+shell实现多线程的方法
- php-fpm开机自动启动Shell脚本
- Shell、Perl、Python、PHP访问 MySQL 数据库代码实例
- Shell脚本中实现更新PHP5
- Shell脚本实现启动PHP内置FastCGI Server
- PHP和Shell实现检查SAMBA与NFS Server是否存在
- Ruby、PHP、Shell实现求50以内的素数
- shell脚本联合PHP脚本采集网站的pv和alexa排名
- php管理nginx虚拟主机shell脚本实例
- 监控服务器swap并重启php的Shell脚本

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

PHP makes it easy to create interactive web content. 1) Dynamically generate content by embedding HTML and display it in real time based on user input or database data. 2) Process form submission and generate dynamic output to ensure that htmlspecialchars is used to prevent XSS. 3) Use MySQL to create a user registration system, and use password_hash and preprocessing statements to enhance security. Mastering these techniques will improve the efficiency of web development.

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.

PHP remains important in modern web development, especially in content management and e-commerce platforms. 1) PHP has a rich ecosystem and strong framework support, such as Laravel and Symfony. 2) Performance optimization can be achieved through OPcache and Nginx. 3) PHP8.0 introduces JIT compiler to improve performance. 4) Cloud-native applications are deployed through Docker and Kubernetes to improve flexibility and scalability.

PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.

PHP and Python each have their own advantages and are suitable for different scenarios. 1.PHP is suitable for web development and provides built-in web servers and rich function libraries. 2. Python is suitable for data science and machine learning, with concise syntax and a powerful standard library. When choosing, it should be decided based on project requirements.

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Atom editor mac version download
The most popular open source editor

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function

Dreamweaver CS6
Visual web development tools