安裝memcache

1.安裝libevent(Memcache用到了libevent這個(gè)庫(kù)用于Socket的處理,所以還必要安裝libevent)libevent-2.0.21-stable.tar.gz

tar zxvf libevent-2.0.21-stable.tar.gz

cd libevent-2.0.21-stable

./configure --prefix=/usr/local/libevent

make && make install

# 建立libevent-1.4.so.2到/usr/lib的軟連接,這樣memcached運(yùn)行的時(shí)候能力找到libevent庫(kù)

cd /usr/lib

ln -s /usr/local/libevent/lib/libevent-2.0.so.5 libevent-2.0.so.5 (具體版本根據(jù)你安裝的版本分歧)

2.安裝memcached

tar zxvf memcached-1.4.20.tar.gz

cd memcached-1.4.20

./configure --prefix=/usr/local/memcached-1.4.20 -with-libevent=/usr/local/libevent

make

make install

3.啟動(dòng)memcached

cd /usr/local/

ln -s memcached-1.4.20 memcached

/usr/local/memcached/bin/memcached -d -p 22211 -u root -c 1024 -m 1024 -l 192.168.112.128

如果安裝PHP支持memcache擴(kuò)展 繼續(xù)往下走

如果安裝PHP支持memcached擴(kuò)展 跳轉(zhuǎn)到memcached安裝文檔

4. 安裝PHP支持memcache擴(kuò)展

cd /root/soft

tar -zxvf memcache-3.0.6.tgz

cd memcache-3.0.6

/usr/local/php/bin/phpize

./configure --enable-memcache --with-php-config=/usr/local/php/bin/php-config --with-zlib-dir

make && make install

勝利之后會(huì)生成PHP支持的擴(kuò)展模塊

ls /usr/local/php-5.4.17/lib/php/extensions/no-debug-non-zts-20100525/

編纂php.ini 添加擴(kuò)展

vi /usr/local/php/etc/php.ini

[memcache]

extension=memcache.so

memcached 參加系統(tǒng)服務(wù)

service php-fpm restartmemcached 系統(tǒng)服務(wù)啟動(dòng)

memcached 參加系統(tǒng)服務(wù)

service php-fpm restart

memcached 系統(tǒng)服務(wù)啟動(dòng)

將memcached 拷貝到/etc/init.d

chkconfig --add memcached

chkconfig memcached on

安裝redis

tar zxvf redis-2.8.11.tar.gz

mv redis-2.8.11 /usr/local/redis

cd /usr/local/redis

make && make install

啟動(dòng)redis

redis-server /usr/local/redis/redis.conf

啟動(dòng)之后會(huì)出現(xiàn)警告處理

WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.

依照警告的內(nèi)容實(shí)現(xiàn)

vi /etc/sysctl.conf

文檔最后添加

vm.overcommit_memory = 1

添加完之后重啟系統(tǒng)reboot 重啟之后執(zhí)行 sysctl vm.overcommit_memory=1

在重新啟動(dòng)redis 就不會(huì)出現(xiàn)警告

后臺(tái)啟動(dòng)redis (輸出重定向)redis-server /usr/local/redis/redis.conf &

啟動(dòng)redis客戶端

redis-cli

redis> set foo barOK

redis> get foo"bar"

勝利