redis-4.0.8在centos的集群安装



一、集群机器

三台服务器：先设置hosts
192.168.2.11  node1
192.168.2.12  node2
192.168.2.13 node3

端口分配：

node1:7000

node1:7001 

node2:7002 

node2:7003 

node3:7004 

node3:7005

1.下载redis-4.0.8

wget http://download.redis.io/releases/redis-4.0.8.tar.gz

make test

yum install tcl

make && make install PREFIX=/usr/local/redis   (确定安装目录）

mkdir -p /usr/local/redis/redis_cluster/ 7000
mkdir -p /usr/local/redis/redis_cluster/ 7001

node1服务器:

mkdir -p /usr/local/redis/redis_cluster/7000

mkdir -p /usr/local/redis/redis_cluster/7001

cp redis.conf /usr/local/redis/redis_cluster/7000

cp  redis.conf /usr/local/redis/redis_cluster/7001

node2服务器:

mkdir -p /usr/local/redis/redis_cluster/7002

mkdir -p /usr/local/redis/redis_cluster/7003

cp redis.conf /usr/local/redis/redis_cluster/7002

cp redis.conf /usr/local/redis/redis_cluster/7003

node3服务器:

mkdir -p /usr/local/redis/redis_cluster/7004

mkdir -p /usr/local/redis/redis_cluster/7005

cp redis.conf /usr/local/redis/redis_cluster/7004

cp redis.conf /usr/local/redis/redis_cluster/7005

192.168.2.11 node1

192.168.2.12 node2

192.168.2.13 node3

4：修改redis.conf

port  7000                                //端口根据对应的文件夹去配制端口 7000,7001,7002,7003,7004,7005     

bind 本机ip                               //根据本机所在的IP或hostname去配制 node1 node2 node3

daemonize    yes                          //redis后台运行

pidfile  /var/run/redis_7000.pid          //pidfile文件对应7000,7001,7002,7003,7004,7005

cluster-enabled  yes                      //开启集群  把注释#去掉

cluster-config-file  nodes_7000.conf      //集群的配置  配置文件首次启动自动生成 7000,7001,7002,7003,7004,7005

cluster-node-timeout  15000               //请求超时  默认15秒，可自行设置

appendonly  yes                           //aof日志开启  有需要就开启，它会每次写操作都记录一条日志

scp   /usr/local/redis/redis_cluster/7000/redis.conf  node2:/usr/local/redis/redis_cluster/7002

scp   /usr/local/redis/redis_cluster/7000/redis.conf  node2:/usr/local/redis/redis_cluster/7003

scp   /usr/local/redis/redis_cluster/7000/redis.conf  node3:/usr/local/redis/redis_cluster/7004

scp   /usr/local/redis/redis_cluster/7000/redis.conf  node3:/usr/local/redis/redis_cluster/7005

5.启动

/usr/local/redis/redis-cluster/7000/data/

/usr/local/redis/redis_cluster/7000/data

logfile /usr/local/redis/redis_cluster/7000/log

cd /usr/local/redis/redis_cluster/7000

/usr/local/redis/bin/redis-server /usr/local/redis/redis_cluster/7000/redis.conf

/usr/local/redis/bin/redis-server /usr/local/redis/redis_cluster/7001/redis.conf

/usr/local/redis/bin/redis-server /usr/local/redis/redis_cluster/7002/redis.conf

/usr/local/redis/bin/redis-server /usr/local/redis/redis_cluster/7003/redis.conf

/usr/local/redis/bin/redis-server /usr/local/redis/redis_cluster/7004/redis.conf

/usr/local/redis/bin/redis-server /usr/local/redis/redis_cluster/7005/redis.conf

6.启动集群

root@node1 soft]# gem install redis-4.0.0.gem

ERROR:  Loading command: install (LoadError)

cannot load such file -- zlib

ERROR:  While executing gem ... (NoMethodError)

    undefined method `invoke_with_build_args' for nil:NilClass

解决办法是：

1. 进入ruby源码文件夹

1. 安装ruby自身提供的zlib包

#cd ext/zlib

#ruby ./extconf.rb

#make

#make install

问题一：

问题：

/soft/redis-4.0.8/src/redis-trib.rb create --replicas 1 node1:7000 node1:7001 node2:7002  node2:7003  node3:7004 node3:7005

/usr/local/ruby/lib/ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- redis (LoadError)

from /usr/local/ruby/lib/ruby/2.4.0/rubygems/core_ext/kernel_require.rb:55:in `require'

from /soft/redis-4.0.8/src/redis-trib.rb:25:in `

解决办法：

Ruby的redis接口没有安装，需要安装Redis接口，输入命令 " gem install redis " 进行安装，如下图：

http://blog.csdn.net/hello_world_qwp/article/details/78261618

今天yum install的时候出问题了,找了半天才找到一个可行的解决办法

fastestmirror 是yum的一个加速插件，这里是插件提示信息是插件不能用了。

不能用就先别用呗，禁用掉，先yum了再说。

1.修改插件的配置文件

# vi  /etc/yum/pluginconf.d/fastestmirror.conf  

enabled = 1//由1改为0，禁用该插件

...............................

2.修改yum的配置文件

# vi /etc/yum.conf

.........................

plugins=1//改为0，不使用插件

........................

清理 删除yum

yum clean

yum update

第一步：安装gcc 、zlib-devel 库

注：由于安装系统的时候没有装c编译器 导致很多源码安装的程序无法编译 所以需要在Linux上装c编译器，必须按顺序安装否则安装不会成功 。

yum -y install gcc gcc-c++ autoconf automake make

yum install zlib,zlib-devel

第二步、 离线安装perl5.

看看perl的版本： perl -v

首先下载最新的perl源码包：

wget http://www.cpan.org/src/5.0/perl-5.16.1.tar.gz

解压源码包

tar -xvf  perl-5.16.1.tar.gz

编译并安装,目录可以自定义

cd perl-5.16.1

 ./Configure -des -Dprefix=/usr/local/perl

make

make test

make install

第三步、我们又得安装OpenSSL才行，

官网地址： https://www.openssl.org/source/  上次压缩包到服务器，解压，

1 $ tar -xzvf openssl- 1.0 .2l.tar.gz
2 $ cd openssl- 1.0 .2l
3 $ ./config -fPIC --prefix=/usr/local/openssl enable- shared
4 $ ./config - t
5 $ make && make install

openssl version - a

打印版本信息表示成功，

出现问题，安装有问题，参考

https://www.cnblogs.com/xuliangxing/p/7146868.html

https://www.cnblogs.com/xuliangxing/p/7146868.html

https://www.cnblogs.com/hellxz/p/redis.html

第四步 、 离线安装高版本的ruby2.5

https://cache.ruby-lang.org/pub/ruby/2.5/ruby-2.5.0.tar.gz

wget https://cache.ruby-lang.org/pub/ruby/2.5/ruby-2.5.0.tar.gz

tar -xvf ruby-2.5.0.tar.gz

$ ./configure --prefix=/usr/local/ruby -prefix是将ruby安装到指定目录，也可以自定义
2 $ make && make install

ln -s /usr/local/ruby/bin/ruby /usr/bin/ruby

cd /soft/ruby-2.5.0/ext/openssl       备注：/soft/ruby-2.5.0这个目录是ruby安装包后解压的目录，就是前面提到的ruby离线安装

$ruby extconf.rb  --with-openssl-include=/usr/local/openssl/include/ --with-openssl-lib=/usr/local/openssl/lib //会生成一个Makefile文件

问题：extconf.rb:94:in `

': OpenSSL library could not be found. You might want to use --with-openssl-dir= option to specify the prefix where OpenSSL is installed. (RuntimeError)

解决办法：修改Make文件的变量  top_srcdir=../.. ，openssl没安装成功的原因，

备注：开始下载的是openssl-fips-2.0.16.tar.gz，后面改成1.1.0g.tar.gz 。

在当前目录下要执行此命令

$ make && make install

注意：make: *** No rule to make target `/usr/include/ruby/backward.h', needed by `ossl_pkey_ec.o'.  Stop.（搞的很纠结，重新安装ruby)

$ gem install redis

Unable to require openssl, install OpenSSL and rebuild ruby (preferred) or use non-HTTPS sources

Unable to require openssl, install OpenSSL and rebuild Ruby (preferred) or use non-HTTPS sources

说明Ruby对应的openssl没安装成功

https://gems.ruby-china.org/

启动有错误：

ERR Invalid node address specified: node1:7000 (Redis::CommandError)

openssl: error while loading shared libraries: libssl.so.1.1: cannot open shared object file: No such file or directory

这是由于openssl库的位置不正确造成的。

解决方法：

在root用户下执行：

ln -s /usr/local/lib64/libssl.so.1.1 /usr/lib64/libssl.so.1.1
ln -s /usr/local/lib64/libcrypto.so.1.1 /usr/lib64/libcrypto.so.1.1

先安装openssl ,然后在安装ruby, 在ruby的ext目录下进行再安装。

遇到问题了，处理方式参考，

https://blog.csdn.net/yelllowcong/article/details/78362370

/soft/redis-4.0.8/src/redis-trib.rb create --replicas 1 192.168.2.11:7000 192.168.2.11:7001 192.168.2.12:7002  192.168.2.12:7003  192.168.2.13:7004 192.168.2.13:7005

cat /etc/sysctl.conf

vi /etc/sysctl.conf

增加下面的内容

vm.overcommit_memory = 1

net.core.somaxconn = 2048

sysctl -p

vi /etc/rc.local

echo never > /sys/kernel/mm/transparent_hugepage/enabled

echo never > /sys/kernel/mm/transparent_hugepage/defrag

chmod +x /etc/rc.d/rc.local

redis.conf

port  7000                               

bind 192.168.2.11                            

daemonize    yes                         

pidfile  /var/run/redis_7000.pid       

cluster-enabled  yes                    

cluster-config-file  /usr/local/redis/redis_cluster/nodes_7000.conf     

cluster-node-timeout  15000              

dir /usr/local/redis/redis_cluster/7000/data

logfile /usr/local/redis/redis_cluster/7000/redis.log  

appendonly  yes