[App] Memcached 集群 cluster 安装配置

 

 

IP/os

PORT

角色

软件

192.168.1.151/rhel7.2

11211 / 12000

主节点 /代理

memcached / magent

192.168.1.152/rhel7.2

11211

从节点

memcached

 

 

 

 

1、初始化系统

关闭防火墙、selinux

 

2、主从 memcached安装

# yum -y installlibevent libevent-devel gcc

#wget http://memcached.org/files/memcached-1.5.0.tar.gz

#tar -zxvf memcached-1.5.0.tar.gz

#cd memcached-1.5.0/

#./configure --with-libevent=/usr/

# make && make install

 

#分别启动memcached

#/usr/local/bin/memcached -d -m 128 -l 192.168.1.151 -p 11211 -u root

(#/usr/local/bin/memcached -d -m 128 -l 192.168.1.152 -p 11211 -u root)

-d   表示启动一个守护进程

-m 是分配给memcached使用的内存

-u   运行memcached的用户

-l     是memcached监听的ip

-p    是memcached监听的端口

-c    memcache运行的最大并发连接数

-P    是设置memcache的pid文件

 

 

3、magent安装

# mkdir/usr/local/magent

# tar -zxfmagent-0.5.tar.gz -C /usr/local/magent/

# cd /usr/local/magent

# viketama.h

#ifndef SSIZE_MAX

#define SSIZE_MAX 32767

 

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

 

# /sbin/ldconfig

#sed -i "s#LIBS = -levent#LIBS = -levent -lm#g" Makefile

# make

gcc -Wall -O2 -g  -c -o magent.o magent.c

gcc -Wall -O2 -g  -c -o ketama.o ketama.c

gcc -Wall -O2 -g -o magent magent.o ketama.o -levent -lm

 

# cp magent /usr/bin/

# magent

please provide -s "ip:port" argument

 

memcached agent v0.4 Build-Date: Oct 30 2017 13:48:41

Usage:

  -h this message

  -u uid

  -g gid

  -p port, default is 11211. (0 to disable tcp support)

  -s ip:port, set memcached server ip and port

  -b ip:port, set backup memcached server ip and port

  -l ip, local bind ip address, default is 0.0.0.0

  -n number, set max connections, default is 4096

  -D don't go to background

  -k use ketama key allocation algorithm

  -f file, unix socket path to listen on. default is off

  -i number, set max keep alive connections for one memcached server, default is 20

  -v verbose

 

#magent -u root -l 192.168.1.151 -p 12000 -s 192.168.1.151:11211 -b192.168.1.152:11211

 

4、测试

# netstat -tunlp | egrep '12000|11211'

#telnet 192.168.1.151 12000

Trying 192.168.1.151...

Connected to 192.168.1.151.

Escape character is '^]'.

set key 0 0 3

qqq

STORED

quit

 

#telnet 192.168.1.151 11211

Trying 192.168.1.151...

Connected to 192.168.1.151.

Escape character is '^]'.

get key

VALUE key 0 3

qqq

END

quit

 

#telnet 192.168.1.152 11211

Trying 192.168.1.152...

Connected to 192.168.1.152.

Escape character is '^]'.

get key

VALUE key 0 3

qqq

END

quit

Connection closed by foreign host.