Source installation memcached and PHP memcache extensions

Source installation memcached and PHP memcache extensions

Note: The following installation steps take the centos6.5 system as an example.

First, pre-installation preparation

1. Download the source package

http://www.memcached.org/

Currently the latest version is http://www.memcached.org/files/memcached-1.4.24.tar.gz

2, Installation Libevent

Because Memcached relies on the Libevent library, it needs to be installed Libevent
#yum Install libevent Libevent-devel

Second, installation memcached

1. Create memcached Users

#useradd-D/var/run/memcached/-s/sbin/nologin-c "memcached daemon" memcached

2. Unzip the source package

#tar ZXVF memcached-1.4.24.tar.gz

3. Compile and install

#cd memcached-1.4.24
#./configure--prefix=/usr/local/memcached
#make && make Install

4, memcached commonly used parameter description

-M memcache Maximum available memory (in m)
-U user
-L Listening IP
-P Port number

Third, add service script

#vi/etc/rc.d/init.d/memcached

The contents are as follows

#! /bin/sh
#
# Chkconfig:-55 45
# description:the memcached Daemon is a network memory cache service.
# processname:memcached
# config:/etc/sysconfig/memcached
# Pidfile:/var/run/memcached/memcached.pid

# Standard LSB functions
#. /lib/lsb/init-functions

# Source function library.
. /etc/init.d/functions

ip=127.0.0.1
port=11211
User=memcached
maxconn=1024
Cachesize=64
Options= ""

# Check that networking are up.
. /etc/sysconfig/network

If ["$NETWORKING" = "No"]
Then

Exit 0

Fi

Retval=0
Prog= "Memcached"
Pidfile=${pidfile-/var/run/memcached/memcached.pid}
Lockfile=${lockfile-/var/lock/subsys/memcached}

Start () {

Echo-n $ "Starting $prog:" # ensure that/var/run/memcached has proper permissionsif ["' Stat-c%u/var/run/memcached '"! = "$USER"]; Then    chown $USER/var/run/memcachedfidaemon--pidfile ${pidfile}  /usr/local/memcached/bin/memcached-d-l $IP  -  P $PORT-u $USER-  m $CACHESIZE-C $MAXCONN-P ${pidfile} $OPTIONSRETVAL =$?echo[$RETVAL-eq 0] && Touch ${lockfile}

}
Stop () {

Echo-n $ "Stopping $prog:" Killproc-p ${pidfile}/usr/local/memcached/binretval=$?echoif [$RETVAL-eq 0]; Then    rm-f ${lockfile} ${pidfile}fi

}

Restart () {

    Stop    Start

}

# See how we were called.
Case "$" in
Start

start;;

Stop

stop;;

Status

Status-p ${pidfile} memcachedretval=$?;;

Restart|reload|force-reload)

restart;;

Condrestart|try-restart)

[-F ${lockfile}] && Restart | | :;;

*)

echo $ "Usage: $ Start|stop|status|restart|reload|force-reload|condrestart|try-restart}" retval=2    ;;

Esac

Exit $RETVAL

Iv. Testing

1. Start memcached Service

#/etc/rc.d/init.d/memcached start
Default memcached service Listener in 127.0.0.1:11211

2. Testing

#telnet 127.0.0.1 11211

Input stats, normal display as follows, indicating the successful installation

Trying 127.0.0.1 ...
Connected to 127.0.0.1.
Escape character is ' ^] '.
Stats
STAT PID 12246
STAT Uptime 2444
STAT Time 1442302696
STAT version 1.4.24
STAT libevent 2.0.22-stable
STAT Pointer_size 64
STAT Rusage_user 0.089986
STAT Rusage_system 0.027995
STAT curr_connections 5
STAT Total_connections 7

STAT Connection_structures 6

V. Installation of Memcached-tool Tools

Memcached-tool is a memcached monitoring tool that is a Perl script that can be run directly. The command usage is as follows.

Usage:memcached-tool [mode]

   Memcached-tool 10.0.0.5:11211 Display    # shows slabs   memcached-tool 10.0.0.5:11211            # same.  (default is Display)   Memcached-tool 10.0.0.5:11211 Stats      # shows general stats   Memcached-tool 10.0.0.5:11211 dump       # dumps keys and values

Vi. Installation of PHP memcache extensions

1. Download the source package

Memcache-3.0.8.tgz

2. Install memcache Extension

#tar ZXVF memcache-3.0.8.tgz
#cd memcache-3.0.8
#/usr/local/php/bin/phpize
#./configure--with-php-config=/usr/local/php/bin/php-config
#make && make Install

3. Modify the configuration file php.ini

Add extension=memcache.so

4. Testing

Restarting Nginx and php-fpm, viewing phpinfo () displays the following information indicating that the installation was successful.

Registered Save handlers Files user Memcache

Memcache Support Enabled

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