Memcached Installation and session sharing

8.memcached installation?

Memcached installation is relatively simple, many platforms support memcached, common are: Linux, FreeBSD, Solaris,

Windows.

This is illustrated in the example of centos6.4.

Software Address:

memcached:http://www.danga.com/memcached/

memcached Other: http://memcached.googlecode.com/files/memcached-1.4.15tar.gz

memcached Other: Http://coode.google.com/p/memcached/downloads/list

libevent:http://monkey.org/provs/libevent/

User installation Information: http://instance.iteye.com/blog/1691705

Installation:

First step: Install Libevent

# wget http://www.mokey.org/~provos/libevent-1.4.1.-stable.tar.gz

# tar zxf libevent-1.4.13-stable.tar.gz

# CD Libevent-1.4.13-stable

#./configure

# make

# make Install

# CD: /

The CentOS system can also be installed using the domain name Libevent

Step Two: Install memcached

# wget http://memcached.googlecode.com/files/memcached-1.4.13tar.gz

# tar zxf memcached-1.4.13tar.gz

# CD memcached-1.4.13

#./configure

# make

# make Install

# CD: /

Tip: Memcache-2.2.5.tgz is the client

Memcached-1.4.13.tar.gz is the service side (after looking at the Memcache plus d)

Step three: Start memcached

(1) Configure ld.so.conf path to prevent start memcached times wrong

# memcached--help

Memcached:error while loading shared libraries:libevent-1.4.so.2:

Cannot open shared object File:no such file or directory

Solution: Echo "/usr/local/lib" >>/etc/ld.so.conf

Ldconfig

Tip centos5.8 do not do the above configuration is also OK

(2) Start memcached

# which memcached

# memcached-m 1m-p 11212-d-C 8192

(-M for memcached allocated memory size-p Specifies external service port number-D background Start-U Specify user-C concurrent Connection number-F tuning factor)

(3) Multi-instance, directly change the port on the line

(4) Write data check results

Adding data to memcached: key-value pairs

Key1-values1

Key2-values2

memcached command syntax:

Set key 0 0 (Expiration time) 10 (bytes) \ r \ n

printf "Set key008 0 0 10\r\noldboy0987\r\n" |nc 127.0.0.1 11211

<command name> <key> <flages> <exptime> <bytes>\r\n

A. Writing via NC

Write # printf "set key008 0 0 10\r\noldboy0987\r\n" |nc 127.0.0.1 11211

Remove # printf "Get key008 0 0 10\r\noldboy0987\r\n" |nc 127.0.0.1 11211

Delete # printf "Deldet key008 0 0 10\r\noldboy0987\r\n" |NC 1

B. Writing via Telnet

# telnet 127.0.0.1

(5) Installation of the client

# wget Http://pecl.php.net/get/memcache-2.2.5.tgz

# tar ZXVF memcache-2.2.5.tgz

# CD Memcache-2.2.5.tgz

/application/php/bin/phpize

./configure--enable-memcache--with-php-config=/applicaton/php/bin/php-config--with-z

Make

Make install

There will be: Memcached.so's success Tips

(2) Modify the php.ini file

cd/application/php/lib/

Extension_dir = "./"

Modified to:

Extension_dir = "memcach.so file path"

and add a line:

Extension=memcache.so

(3) Restart Apache or Nginx service to make PHP configuration effective

Apache:

#/application/apache/bin/apachectl-t

Syntax OK

#/application/apache/bin/apachectl Graceful

If it is nginx:

#/application/nginx/sbin/nginx-t

#/application/nginx/sbin/nginx-s Reload

# Pkill PHP-FPM

#/APPLICATION/PHP/SBIN/PHP-FPM

(4) Open browser Access phpinfo page test if installation is successful

8.session sharing

Add on the Web

Session.save_handler = Memcache

Session.save_path = "tcp://10.0.0.7:1121 (IP and port)"

This article from "10656918" blog, declined reprint!

Memcached Installation and session sharing