memcached 安装配置
依赖:
linevent 获取: http://libevent.org/
编译(旧版本可能会被其他软件依赖, 此处建议安装在独立目录):
# ./configure --prefix=/usr/local/libevent
# make && make install
# echo "/usr/local/libevent/lib" > /etc/ld.so.conf.d/libevent.conf
# ldconfig
编译:
memcached 获取: https://memcached.org/
# ./configure --prefix=/usr/local/memcached \
# --with-libevent=/usr/local/libevent #若是编译安装libevent, 需要指定libevent的目录
# make && make install
提供memcached 服务脚本:
#!/bin/bash
#
# Init file for memcached
#
# chkconfig: - 86 14
# description: Distributed memory caching daemon
#
# processname: memcached
# config: /etc/sysconfig/memcached
. /etc/rc.d/init.d/functions
## Default variables
PORT="11211"
USER="nobody"
MAXCONN="1024"
CACHESIZE="64"
OPTIONS=""
[ -f /etc/sysconfig/memcached ] && . /etc/sysconfig/memcached
RETVAL=0
prog="/usr/local/memcached/bin/memcached"
desc="Distributed memory caching"
lockfile="/var/lock/subsys/memcached"
start() {
echo -n $"Starting $desc (memcached): "
daemon $prog -d -p $PORT -u $USER -c $MAXCONN -m $CACHESIZE
RETVAL=$?
echo
[ $RETVAL -eq 0 ] && touch $lockfile
return $RETVAL
}
stop() {
echo -n $"Shutting down $desc (memcached): "
killproc $prog
RETVAL=$?
echo
[ $RETVAL -eq 0 ] && rm -f $lockfile
return $RETVAL
}
restart() {
stop
start
}
reload() {
echo -n $"Reloading $desc ($prog): "
killproc $prog -HUP
RETVAL=$?
echo
return $RETVAL
}
case "$1" in
start)
start
;;
stop)
stop
;;
restart)
restart
;;
condrestart)
[ -e $lockfile ] && restart
RETVAL=$?
;;
reload)
reload
;;
status)
status $prog
RETVAL=$?
;;
*)
echo $"Usage: $0 {start|stop|restart|condrestart|status}"
RETVAL=1
esac
exit $RETVAL
memcached的常用选项说明:
-l <ip_addr>:指定进程监听的地址;
-d: 以服务模式运行;
-u <username>:以指定的用户身份运行memcached进程;
-m <num>:用于缓存数据的最大内存空间,单位为MB,默认为64MB;
-c <num>:最大支持的并发连接数,默认为1024;
-p <num>: 指定监听的TCP端口,默认为11211;
-U <num>:指定监听的UDP端口,默认为11211,0表示关闭UDP端口;
-t <threads>:用于处理入站请求的最大线程数,仅在memcached编译时开启了支持线程才有效;
-f <num>:设定Slab Allocator定义预先分配内存空间大小固定的块时使用的增长因子;
-M:当内存空间不够使用时返回错误信息,而不是按LRU算法利用空间;
-n: 指定最小的slab chunk大小;单位是字节;
-S: 启用sasl进行用户认证;
启动memcached 服务:
# chmod +x /etc/init.d/memcached
# chkconfig --add memcached
# service memcached start
给PHP 安装memcached 扩展:
# /usr/local/php/bin/phpize
# ./configure --with-php-config=/usr/local/php/bin/php-config --enable-memcache
# make && make install
编辑php.ini 文件:
extension=memcache.so
查看模块加载情况:
[root@bogon ~]# php -m
[PHP Modules]
bz2
Core
ctype
date
dom
ereg
fileinfo
filter
hash
iconv
json
libxml
mbstring
mcrypt
memcache <-- 在这
mysql
mysqli
openssl
pcre
PDO
pdo_sqlite
Phar
posix
Reflection
session
SimpleXML
sockets
SPL
sqlite3
standard
tokenizer
XCache
XCache Cacher
xml
xmlreader
xmlwriter
zlib
[Zend Modules]
XCache
XCache Cacher
轻量级Memcached管理监控工具 --> memadmin:
获取: http://www.junopen.com/memadmin/
基于PHP 的Web 管理程序, 配置很简单
编辑config.php 配置账户密码之后直接访问登录即可