操作系統(tǒng)：CentOS 7.x 64位
實(shí)現(xiàn)目的：安裝部署Memcached服務(wù)器
一、防火墻設(shè)置
CentOS 7.x默認(rèn)使用的是firewall作為防火墻，這里改為iptables防火墻。
1、關(guān)閉firewall：
systemctl stop firewalld.service #停止firewall
systemctl disable firewalld.service #禁止firewall開機(jī)啟動(dòng)
2、安裝iptables防火墻
yum install iptables-services #安裝
vi /etc/sysconfig/iptables #編輯防火墻配置文件
# sample configuration for iptables service
# you can edit this manually or use system-config-firewall
# please do not ask us to add additional ports/services to this default configuration
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 11211 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT
:wq! #保存退出
systemctl restart iptables.service #最后重啟防火墻使配置生效
systemctl enable iptables.service #設(shè)置防火墻開機(jī)啟動(dòng)
/usr/libexec/iptables/iptables.init restart #重啟防火墻
二、關(guān)閉SELINUX
vi /etc/selinux/config
#SELINUX=enforcing #注釋掉
#SELINUXTYPE=targeted #注釋掉
SELINUX=disabled #增加
:wq! #保存退出
setenforce 0 #使配置立即生效
三 、系統(tǒng)約定
軟件源代碼包存放位置：/usr/local/src
源碼包編譯安裝位置：/usr/local/軟件名字
四、下載軟件包
1、下載libevent
http://ftp.lfs-matrix.net/pub/blfs/conglomeration/libevent/libevent-2.0.22-stable.tar.gz
2、下載memcached
http://memcached.org/files/memcached-1.4.34.tar.gz
五、安裝編譯工具包
yum install -y apr* autoconf automake bison bzip2 bzip2* cloog-ppl compat* cpp curl curl-devel fontconfig fontconfig-devel freetype freetype* freetype-devel gcc gcc-c++ gtk+-devel gd gettext gettext-devel glibc kernel kernel-headers keyutils keyutils-libs-devel krb5-devel libcom_err-devel libpng libpng-devel libjpeg* libsepol-devel libselinux-devel libstdc++-devel libtool* libgomp libxml2 libxml2-devel libXpm* libxml* libtiff libtiff* make mpfr ncurses* ntp openssl openssl-devel patch pcre-devel perl php-common php-gd policycoreutils telnet t1lib t1lib* nasm nasm* wget zlib-devel
六、安裝配置memcached
1、安裝libevent
cd /usr/local/src
tar zxvf libevent-2.0.22-stable.tar.gz
cd libevent-2.0.22-stable
./configure --prefix=/usr/local/libevent
make
make install
2、安裝memcached
cd /usr/local/src
tar zxvf memcached-1.4.34.tar.gz
cd memcached-1.4.34
./configure --enable-sasl --prefix=/usr/local/memcached -with-libevent=/usr/local/libevent
make
make install
3、測試Memcached
groupadd memcached #創(chuàng)建組
useradd -g memcached memcached -s /bin/false #創(chuàng)建賬號
ln -s /usr/local/memcached/bin/memcached /usr/local/bin/memcached #添加軟連接
啟動(dòng)Memcache的服務(wù)器端的命令為：
/usr/local/memcached/bin/memcached -d -m 4096 -u root -l 192.168.4.6 -p 11211 -c 1024 -P /usr/local/memcached/memcached.pid
或者
/usr/local/memcached/bin/memcached -d -m 4096 -u memcached -l 192.168.4.6 -p 11211 -c 1024
參數(shù)說明：
-d選項(xiàng)是啟動(dòng)一個(gè)守護(hù)進(jìn)程，
-m是分配給Memcache使用的內(nèi)存數(shù)量，單位是MB，這里是4096MB
-u是運(yùn)行Memcache的用戶，比如root或者memcached
-l是監(jiān)聽的服務(wù)器IP地址，這里指定服務(wù)器的IP地址192.168.4.6，不設(shè)置默認(rèn)監(jiān)聽服務(wù)器所有IP地址
-p是設(shè)置Memcache監(jiān)聽的端口，默認(rèn)為11211
-c選項(xiàng)是最大運(yùn)行的并發(fā)連接數(shù)，默認(rèn)是1024
-P是設(shè)置保存Memcache的pid文件，/usr/local/memcached/memcached.pid
開機(jī)自啟動(dòng)，在/etc/rc.d/rc.local中加入一行
/usr/local/memcached/bin/memcached -d -m 4096 -u root -l 192.168.4.6 -p 11211 -c 1024 -P /usr/local/memcached/memcached.pid
也可以使用下面的命令：
/usr/local/memcached/bin/memcached -d -m 4096 -p 11211 -u memcached
ip不指定時(shí)，默認(rèn)監(jiān)聽本地所有ip地址，用戶最好選擇是非root用戶，例如memcached
關(guān)閉Memcached服務(wù)
cat /usr/local/memcached/memcached.pid #查看進(jìn)程
kill 22856 #結(jié)束進(jìn)程
或者
killall memcached #結(jié)束服務(wù)
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4、設(shè)置Memcached開機(jī)啟動(dòng)
vi /etc/rc.d/init.d/memcached
#!/bin/sh
#
# memcached: MemCached Daemon
#
# chkconfig: - 90 25
# description: MemCached Daemon
#
# Source function library.
. /etc/rc.d/init.d/functions
. /etc/sysconfig/network
MEMCACHED="/usr/local/memcached/bin/memcached"
start()
{
echo -n $"Starting memcached: "
daemon $MEMCACHED -u memcached -d -m 4096 -p 11211 -c 1024
echo
}
stop()
{
echo -n $"Shutting down memcached: "
killproc memcached
echo
}
[ -f $MEMCACHED ] || exit 0
# See how we were called.
case "$1" in
start)
start
;;
stop)
stop
;;
restart|reload)
stop
start
;;
condrestart)
stop
start
;;
*)
echo $"Usage: $0 {start|stop|restart|reload|condrestart}"
exit 1
esac
exit 0
:wq! #保存退出
chmod 775 /etc/rc.d/init.d/memcached #賦予文件執(zhí)行權(quán)限
chkconfig memcached on #設(shè)置開機(jī)啟動(dòng)
/etc/rc.d/init.d/memcached start #啟動(dòng)
至此，Linux下Memcached服務(wù)器部署完成。
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