CentOS installation, configuration memcached

Check to see if memcached is already installed.
Input memcached-h will output memcached version, or print phpinfo view;

Memcached need libevent support, no libevent, first install Libevent
Yum Install Libevent-devel

memcached installation can be compiled by source code installation, you can also use Yum;
Source Code Compilation Installation

1 #wget http://memcached.googlecode.com/files/memcached-1.4.10.tar.gz  2 # TAR-ZXVF memcached-1.4. Ten . tar.gz   3 #cd memcached-1.4. Ten  4 #./configure--prefix=/usr/local/webserver/memcached--with-libevent=/usr/  5# Make  6 #make Install  

Or

1 yum install-y memcached

After confirming the installation, the default configuration file is/etc/sysconfig/memcached, which makes it easy to make memory, port and so on.
or use the command to configure:

1 #/usr/local/webserver/memcached/bin/memcached-d-M 32-l 127.0.0.1-p 11211-u root-p/tmp/memcached.pid

No prompt to start successfully
Parameter hints:
-P Listening Port
-L connected IP address, default is native
-D Start Memecache service
-D Restart Restart
-D stop|shutdown Shutdown service
-D Install installation
-D Uninstall Uninstall
-U Run as identity only valid under root
-m maximum memory usage, unit MB, default 64MB, Max 2G
-M error returned when memory is exhausted
-c Maximum number of simultaneous connections, default is 1024
-F Block Size growth because the default is 1.25
-N Minimum allocated space, key+value+flags default 48
-H Display Help


Then make sure that the firewall has the correct port open, add the firewall rule in/etc/sysconfig/iptables, and open the corresponding port:

1 -A input-m State--state new-m tcp-p TCP--dport 11211-j ACCEPT

Restart Firewall service iptables restart;


Use the Telnet host 11211-Status test to view the current status of Memcache;
Magento need another plugin to support memcached, enter the following command

1 yum install-y php-pecl-memcache

Last Restart service httpd restart

Modify App/etc/local.xml, configure memcached for Magento, file as follows

1 <Session_save><! [Cdata[memcache]]></Session_save>  2 <Session_save_path><! [Cdata[tcp://10.10.10.1:11211?persistent=1&weight=2&timeout=10&retry_interval=10]]></Session_save_path>  3 <Cache>  4     <Backend>Memcached</Backend>  5     <memcached>  6         <Servers>  7             <Server>  8                 <Host><! [Cdata[10.10.10.1]]></Host>  9                 <Port><! [Cdata[11211]]></Port>  Ten                 <Persistent><! [Cdata[1]]></Persistent>   One             </Server>   A         </Servers>   -         <Compression><! [Cdata[0]]></Compression>   -         <Cache_dir><! [cdata[]]></Cache_dir>   the         <Hashed_directory_level><! [cdata[]]></Hashed_directory_level>   -         <Hashed_directory_umask><! [cdata[]]></Hashed_directory_umask>   -         <File_name_prefix><! [cdata[]]></File_name_prefix>   -     </memcached>   + </Cache>  

Remember to replace the above IP for the correct host address;

CentOS installation, configuration memcached