Memcached和Magent简介及安装

re2212

• memcached的安装
  
  

• 安装libevent
  
  
  

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[iyunv@test ~]# wget https://cloud.github.com/downloa ... .0.19-stable.tar.gz [iyunv@test ~]# tar zxvf libevent-2.0.19-stable.tar.gz [iyunv@test ~]# cd libevent-2.0.19-stable [iyunv@test libevent-2.0.19-stable]# ./configure --prefix=/usr/ [iyunv@test libevent-2.0.19-stable]# make && make install

2.安装memcached

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[iyunv@test ~]# wget http://www.memcached.org/files/memcached-1.4.22.tar.gz   [iyunv@test ~]# tar zxvf memcached-1.4.22.tar.gz [iyunv@test memcached-1.4.22]# ./configure --prefix=/usr/local/memcached --with-libevent=/usr/ [iyunv@test memcached-1.4.22]# make && make install

• magent的安装
  magent是一款开源的Memcached代理服务器软件，其项目网址为：
  
  

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[iyunv@test ~]# tar zxvf magent-0.6.tar.gz [iyunv@test ~]# mkdir /usr/local/magent [iyunv@test magent]# tar zxvf magent-0.6.tar.gz ketama.c ketama.h magent.c Makefile [iyunv@test magent]# make gcc -Wall -g -O2 -I/usr/local/include -m64 -c -o magent.o magent.c magent.c: In function ‘writev_list’: magent.c:729: error: ‘SSIZE_MAX’ undeclared (first use in this function) magent.c:729: error: (Each undeclared identifier is reported only once magent.c:729: error: for each function it appears in.) make: *** [magent.o] Error 1 解决方法: [iyunv@test magent]# vim ketama.h #ifndef SSIZE_MAX #define SSIZE_MAX      32767 #endif #ifndef _KETAMA_H #define _KETAMA_H struct dot {         unsigned int point;         int srvid; }; struct ketama {         unsigned int numpoints;         struct dot *dot;         int count;         char **name;         int *weight;         int totalweight; }; int create_ketama(struct ketama *, int); void free_ketama(struct ketama *); int get_server(struct ketama *, const char *); #endif [iyunv@test magent]# make gcc -Wall -g -O2 -I/usr/local/include -m64 -o magent magent.o ketama.o /usr/lib64/libevent.a /usr/lib64/libm.a gcc: /usr/lib64/libevent.a: No such file or directory gcc: /usr/lib64/libm.a: No such file or directory make: *** [magent] Error 1 解决方案: [iyunv@test magent]# ln -svf /usr/lib/libevent* /usr/lib64/ `/usr/lib64/libevent-2.0.so.5' -> `/usr/lib/libevent-2.0.so.5' `/usr/lib64/libevent-2.0.so.5.1.7' -> `/usr/lib/libevent-2.0.so.5.1.7' `/usr/lib64/libevent.a' -> `/usr/lib/libevent.a' `/usr/lib64/libevent_core-2.0.so.5' -> `/usr/lib/libevent_core-2.0.so.5' `/usr/lib64/libevent_core-2.0.so.5.1.7' -> `/usr/lib/libevent_core-2.0.so.5.1.7' `/usr/lib64/libevent_core.a' -> `/usr/lib/libevent_core.a' `/usr/lib64/libevent_core.la' -> `/usr/lib/libevent_core.la' `/usr/lib64/libevent_core.so' -> `/usr/lib/libevent_core.so' `/usr/lib64/libevent_extra-2.0.so.5' -> `/usr/lib/libevent_extra-2.0.so.5' `/usr/lib64/libevent_extra-2.0.so.5.1.7' -> `/usr/lib/libevent_extra-2.0.so.5.1.7' `/usr/lib64/libevent_extra.a' -> `/usr/lib/libevent_extra.a' `/usr/lib64/libevent_extra.la' -> `/usr/lib/libevent_extra.la' `/usr/lib64/libevent_extra.so' -> `/usr/lib/libevent_extra.so' `/usr/lib64/libevent.la' -> `/usr/lib/libevent.la' `/usr/lib64/libevent_pthreads-2.0.so.5' -> `/usr/lib/libevent_pthreads-2.0.so.5' `/usr/lib64/libevent_pthreads-2.0.so.5.1.7' -> `/usr/lib/libevent_pthreads-2.0.so.5.1.7' `/usr/lib64/libevent_pthreads.a' -> `/usr/lib/libevent_pthreads.a' `/usr/lib64/libevent_pthreads.la' -> `/usr/lib/libevent_pthreads.la' `/usr/lib64/libevent_pthreads.so' -> `/usr/lib/libevent_pthreads.so' `/usr/lib64/libevent.so' -> `/usr/lib/libevent.so' [iyunv@test magent]# make gcc -Wall -g -O2 -I/usr/local/include -m64 -o magent magent.o ketama.o /usr/lib64/libevent.a /usr/lib64/libm.a gcc: /usr/lib64/libm.a: No such file or directory make: *** [magent] Error 1 解决方案: 如果是64bit的系统则不会在/usr/lib64/libm.a 生成，如果是32bit即会有 [iyunv@test magent]# yum install glibc glibc-devel [iyunv@test magent]# cp /usr/lib64/libm.so /usr/lib64/libm.a [iyunv@test magent]# make gcc -Wall -g -O2 -I/usr/local/include -m64 -o magent magent.o ketama.o /usr/lib64/libevent.a /usr/lib64/libm.a /usr/lib64/libevent.a(event.o): In function `gettime': /usr/local/src/libevent-2.0.19-stable/event.c:366: undefined reference to `clock_gettime' /usr/lib64/libevent.a(event.o): In function `detect_monotonic': /usr/local/src/libevent-2.0.19-stable/event.c:336: undefined reference to `clock_gettime' collect2: ld returned 1 exit status make: *** [magent] Error 1 解决方案: [iyunv@test magent]# vim Makefile CFLAGS = -Wall -g -O2 -I/usr/local/include $(M64) 改为: CFLAGS = -lrt -Wall -g -O2 -I/usr/local/include $(M64) [iyunv@test magent]# make gcc -lrt -Wall -g -O2 -I/usr/local/include -m64 -o magent magent.o ketama.o /usr/lib64/libevent.a /usr/lib64/libm.a [iyunv@test magent]# ls    终于成功了- -! ketama.c  ketama.h  ketama.o  magent  magent-0.6.tar.gz  magent.c  magent.o  Makefile [iyunv@test magent]# cp magent /bin/

• 启动memcached
  
  

memecached默认不允许root用户启动进程,需要为memcached创建一个用户

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[iyunv@test src]# useradd -s /sbin/nologin memcached [iyunv@test ~]# memcached -c 10240 -l 192.168.40.144 -p 11215 -u memcached -m 10 -n 40 -f 2 -d [iyunv@test ~]# memcached -c 10240 -l 192.168.40.144 -p 11216 -u memcached -m 10 -n 40 -f 2 -d [iyunv@test ~]# ps -ef | grep memcached | grep -v "grep" 501      11784     1  0 01:34 ?        00:00:00 memcached -c 10240 -l 192.168.40.144 -p 11215 -u memcached -m 10 -n 40 -f 2 -d 501      11791     1  0 01:35 ?        00:00:00 memcached -c 10240 -l 192.168.40.144 -p 11216 -u memcached -m 10 -n 40 -f 2 -d

• 启用magent管理memcached
  
  

1	[iyunv@test ~]# magent -u root -n 51200 -l 192.168.40.144 -p 12001 -s 192.168.40.144:11215  -b 192.168.40.144:11216

1	# -S为主服务器 -b为备服务器