Shulou(Shulou.com)06/01 Report--

The use of Memcached

1.1 install libevent

Memcached download address http://memcached.org/downloads

Libevent download address: http://libevent.org/

Install libevent before installing memcached

Tar xf libevent-2.0.21-stable.tar.gz

Cd libevent-2.0.21-stable

. / configure

Make & & make install

1.2 install memcached

Wget http://memcached.org/files/memcached-1.4.25.tar.gz

Tar-xf memcached-1.4.25.tar.gz

Cd memcached-1.4.25

. / configure

Make & & make install

Memcached-1.4.25.tar.gz "= server

Memcached-1.4.25.tgz "= client

Start memcached

First of all, configure the ld.so.conf path to prevent errors when starting memcached

[root@nosql src] # echo "/ usr/local/lib" > > / etc/ld.so.conf

[root@nosql src] # ldconfig

Centos5.8 does not have to do the above configuration.

Start starting memcached

[root@nosql src] # which memcached

/ usr/local/bin/memcached

[root@nosql src] # memcached-u root-p 11211-m 16m-c 8192-d

[root@nosql src] # lsof-I: 11211

COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME

Memcached 8872 root 26u IPv4 17126 0t0 TCP *: memcache (LISTEN)

Memcached 8872 root 27u IPv6 17127 0t0 TCP *: memcache (LISTEN)

View help

Memcached-h

-P listening port. Default is 11211.

-l IP address of the connection. Default is local.

-d start starts the memcached service

-d restart restarts memcached service

-d stop | shutdown shuts down the running memcached service

-d install install memcached service

-d uninstall uninstall the memcached service

-u runs as (valid only when running as root)

-m maximum memory usage, in MB. Default 64MB, the maximum is like 2G

-M returns an error when memory is exhausted instead of deleting an item

-c the maximum number of simultaneous connections. The default is 1024, which is set according to the concurrent visits to the server.

-f block size growth factor, default is 1.25

-n minimum allocated space. Key+value+flags defaults to 48.

-h display help

-P set the pid file to save memcache

If you start multiple instances, you can switch ports.

[root@nosql src] # memcached-u root-p 11212-m 16m-c 8192-d

Web cluster session shared storage settings:

The type and configuration path of session in the default php.ini:

# session.save_handler = files

# session.save_path = "/ tmp"

Modify it to the following configuration:

Session.save_handler = memcache

Session.save_path = "tcp://192.168.1.18:11211"

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