redis- 4.0安装

野性酷女 2024-02-18 14:06 36阅读 0赞

一、单机版  
1、前提条件  
yum install gcc-c++  
  
2、安装redis

wget http://download.redis.io/releases/redis-4.0.1.tar.gz

tar -zxvf redis-xxxx.tar.gz

cd redis-xxxx  
make  
make install  
  
3、测试Redis是否安装成功  
两种启动redis方式  
(一)前端启动  
./redis-server  
(二)后台启动  
①将redis.conf从安装文件夹中拷贝到/usr/local/redis/bin路径下  
cp /usr/local/software/redis-3.2.8/redis.conf /usr/local/redis/bin/  
  
②编辑/usr/local/redis/bin/下的redis.conf  
将 daemonize 后面的no改为yes  
③后台启动redis  
./redis-server redis.conf  
④查看redis进程  
⑤给redis设置登录密码,修改redis.conf  
requirepass 123456  
  
4、测试Redis连接客户端  
redis-cli -p 端口 -h ip地址 <-c>连接集群时使用此参数  
默认端口：6379  
Ip：localhost（127.0.0.1）  
测试连接,放入一个值,并查看  
redis-cli  
set a 100

get a

二、redis集群

二、集群搭建

1、**redis服务器说明**

**192.168.1.216:6379**

**192.168.1.216:6380**

**192.168.1.216:6381**

**192.168.1.215:6382**

**192.168.1.215:6383**

**192.168.1.215:6384**

**注：测试环境可以用两台机器，生产环境建议使用6台服务器。**

①集群中应该至少有三个节点，每个节点有一备份节点。需要6台服务器。在user/local路径下新建文件夹redis-cluster，复制六份redis 到这个路径下(redis01、redis02、redis03、redis04、redis05、redis06)

2、配置REDIS

修改每一个下面的redis.conf文件

port 6379  
pidfile /var/run/redis-6379.pid  
dbfilename dump-6379.rdb  
appendfilename "appendonly-6379.aof"  
cluster-config-file nodes-6379.conf  
cluster-enabled yes  
cluster-node-timeout 5000  
appendonly yes

copy配置文件，并修改端口  
\# cp redis.conf /etc/redis/redis-6379.conf  
\# cp redis.conf /etc/redis/redis-6380.conf  
\# cp redis.conf /etc/redis/redis-6381.conf  
  
\# scp redis.conf 192.168.10.220:/etc/redis/redis-6382.conf  
\# scp redis.conf 192.168.10.220:/etc/redis/redis-6383.conf  
\# scp redis.conf 192.168.10.220:/etc/redis/redis-6384.conf  
  
\# sed -i "s/6379/6380/g" /etc/redis/redis-6380.conf  
\# sed -i "s/6379/6381/g" /etc/redis/redis-6381.conf  
  
\# sed -i "s/6379/6382/g" /etc/redis/redis-6382.conf  
\# sed -i "s/6379/6383/g" /etc/redis/redis-6383.conf  
\# sed -i "s/6379/6384/g" /etc/redis/redis-6384.conf

cluster-require-full-coverage no。默认是yes，只要有结点宕机导致16384个槽没全被覆盖，整个集群就全部停止服务，所以一定要改为no  
注：把所有的节点名添加到/ETC/HOSTS  
  
②需要一个ruby脚本在redis源码文件夹下的src目录下。redis-trib.rb，将此文件拷贝到/usr/local/redis-cluster下  
cp /usr/local/software/redis-3.2.8/src/redis-trib.rb /usr/local/redis-cluster/  
③执行ruby脚本需要安装ruby环境  
yum install ruby  
yum install rubygems  
④安装redis需要依赖的gem包  
redis-3.2.2.gem 下载地址：http://download.csdn.net/detail/qq\_34021712/9819438  
将redis-3.2.2.gem拷贝到linux的/usr/local/redis-cluster/下,然后执行安装  
gem install redis-3.2.2.gem  
  
注：安装 ruby-2.4.0.tar.gz  
1) 解压并编译 ./configure  
2) 安装 make &make install  
3)安装 rubygems-2.6.8.tgz.tar  
ruby setup.rb  
4. 安装 redis-3.0.0.gem， 必须是3.0.0.gem ， 高版本可能有错误。  
gem install redis-3.0.0.gem  
root@test-2:/opt/ruby-2.4.1/ext/zlib\#gem install redis  
ERROR: Loading command: install (LoadError)  
cannot load such file -- zlib  
ERROR: While executing gem ... (NoMethodError)  
undefined method \`invoke\_with\_build\_args' for nil:NilClass

3、启动REDIS

root@test-3:/root\#redis-server /opt/redis-4.0.1/redis-cluster/7005/redis.conf &  
\[3\] 20584  
root@test-3:/root\#20584:C 08 Aug 13:29:09.178 \# oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo  
20584:C 08 Aug 13:29:09.178 \# Redis version=4.0.1, bits=64, commit=00000000, modified=0, pid=20584, just started  
20584:C 08 Aug 13:29:09.178 \# Configuration loaded  
20584:M 08 Aug 13:29:09.178 \* Increased maximum number of open files to 10032 (it was originally set to 1024).  
20584:M 08 Aug 13:29:09.179 \* No cluster configuration found, I'm 72f9b3d96f2e211d375e45a45d90a7025227e0d9  
\_.\_  
\_.-\`\`\_\_ ''-.\_  
\_.-\`\` \`. \`\_. ''-.\_ Redis 4.0.1 (00000000/0) 64 bit  
.-\`\` .-\`\`\`. \`\`\`\\/ \_.,\_ ''-.\_  
( ' , .-\` | \`, ) Running in cluster mode  
|\`-.\_\`-...-\` \_\_...-.\`\`-.\_|'\` \_.-'| Port: 6383  
| \`-.\_ \`.\_ / \_.-' | PID: 20584  
\`-.\_ \`-.\_ \`-./ \_.-' \_.-'  
|\`-.\_\`-.\_ \`-.\_\_.-' \_.-'\_.-'|  
| \`-.\_\`-.\_ \_.-'\_.-' | http://redis.io  
\`-.\_ \`-.\_\`-.\_\_.-'\_.-' \_.-'  
|\`-.\_\`-.\_ \`-.\_\_.-' \_.-'\_.-'|  
| \`-.\_\`-.\_ \_.-'\_.-' |  
\`-.\_ \`-.\_\`-.\_\_.-'\_.-' \_.-'  
\`-.\_ \`-.\_\_.-' \_.-'  
\`-.\_ \_.-'  
\`-.\_\_.-'

**总结错误信息**：

1:安装Ruby之后，因redis-trib.rb依赖于gem包redis，因此需要执行命令：gem install redis，报错：  
ERROR: Loading command: install (LoadError)  
cannot load such file -- zlib  
ERROR: While executing gem ... (NoMethodError)  
undefined method \`invoke\_with\_build\_args' for nil:NilClass  
  
解决方法：  
apt-get install zlib1g-dev  
cd /root/redis/ruby-2.2.3/ext/zlib  
ruby ./extconf.rb  
make  
make install  
  
  
2：再次执行命令gem install redis，再次报错：  
ERROR: While executing gem ... (Gem::Exception)  
Unable to require openssl, install OpenSSL and rebuild ruby (preferred) or use non-HTTPS sources  
解决方法：  
apt-get install libssl-dev  
cd /root/redis/ruby-2.2.3/ext/openssl  
ruby ./extconf.rb  
ln -s /root/redis/ruby-2.2.3/include /  
make  
make install  
  
  
3：再次执行命令gem install redis，竟然还是报错，错误信息是：  
Errno::ECONNRESET: Connection reset by peer  
查了一下原因，竟然是伟大的墙做的贡献(https://ruby.taobao.org/)，解决办法如下：  
\#gem sources --add https://ruby.taobao.org/ --remove https://rubygems.org/  
https://ruby.taobao.org/ added to sources  
https://rubygems.org/ removed from sources  
  
\#gem sources -l  
\*\*\* CURRENT SOURCES \*\*\*  
  
https://ruby.taobao.org/  
  
4：再次执行命令gem install redis，终于成功，此时，就可以运行redis-trib.rb脚本了。

注：ssh互相信任  
  
1.在两台机器上生成认证文件，就是ssh互信的认证文件，需要放在用户的home目录中，所以我们需要先创建这个目录，且保证这个目录的全县时755  
\[root@test-3 ~\]\# mkdir ~/.ssh  
\[root@test-3 ~\]\# chmod 755 ~/.ssh  
\[root@test-3 ~\]\# /usr/bin/ssh-keygen -t rsa ＃下面默认回车就行  
\[root@test-3 ~\]\# /usr/bin/ssh-keygen -t dsa

\[root@test-1 ~\]\# mkdir ~/.ssh  
\[root@test-1 ~\]\# chmod 755 ~/.ssh  
\[root@test-1 ~\]\# /usr/bin/ssh-keygen -t rsa  
\[root@test-1 ~\]\# /usr/bin/ssh-keygen -t dsa  
2.必须将每个主机上的公共密钥文件id\_rsa.pub和id\_dsa.pub的内容复制到其他每一个主机的~/.ssh/authorized\_keys文件中。注意，当您第一次使用ssh访问远程主机时，其RSA密钥是未知的，所以提示确认一下，确认完毕后SSH将纪录远程主机的RSA密钥，以后连接该主机将不再做出相应的提示。  
  
\[root@test-3 ~\]\# cat ~/.ssh/id\_rsa.pub >> ~/.ssh/authorized\_keys  
\[root@test-3 ~\]\# cat ~/.ssh/id\_dsa.pub >> ~/.ssh/authorized\_keys  
\[root@test-3 ~\]\# ssh root@test-1 cat ~/.ssh/id\_rsa.pub >> ~/.ssh/authorized\_keys  
\[root@test-3 ~\]\# ssh root@test-1 cat ~/.ssh/id\_dsa.pub >> ~/.ssh/authorized\_keys  
  
  
  
3.经过上述两步，在test-3上存了一份完整的key认证文件，我们只需要把这个目录拷贝到test-1这台机器的对应目录里去就可以了，别忘了把authorized\_keys 的权限设置成600  
  
\[root@test-3 ~\]\# scp ~/.ssh/authorized\_keys test-1:~/.ssh/authorized\_keys  
\[root@test-3 ~\]\# chmod 600 ~/.ssh/authorized\_keys

4、启动REDIS所有节点

root@test-3:/opt/redis-4.0.1/redis-cluster\#ps -ef|grep redis  
root 20667 13770 0 13:35 pts/0 00:00:00 redis-server 127.0.0.1:6383 \[cluster\]  
root 20672 13770 0 13:35 pts/0 00:00:00 redis-server 127.0.0.1:6382 \[cluster\]  
root 20676 13770 0 13:36 pts/0 00:00:00 redis-server 127.0.0.1:6379 \[cluster\]  
root 20681 13770 0 13:36 pts/0 00:00:00 grep --color=auto redis  
root@test-3:/opt/redis-4.0.1/redis-cluster\#netstat -tpnl|grep redis  
tcp 0 0 127.0.0.1:6379 0.0.0.0:\* LISTEN 20676/redis-server  
tcp 0 0 127.0.0.1:6382 0.0.0.0:\* LISTEN 20672/redis-server  
tcp 0 0 127.0.0.1:6383 0.0.0.0:\* LISTEN 20667/redis-server  
tcp 0 0 127.0.0.1:16379 0.0.0.0:\* LISTEN 20676/redis-server  
tcp 0 0 127.0.0.1:16382 0.0.0.0:\* LISTEN 20672/redis-server  
tcp 0 0 127.0.0.1:16383 0.0.0.0:\* LISTEN 20667/redis-server  
root@test-3:/opt/redis-4.0.1/redis-cluster\#

root@test-1:/opt/redis-4.0.1/src\#  
root@test-1:/opt/redis-4.0.1/src\#ps -ef|grep redis  
root 19399 13207 0 14:05 pts/0 00:00:00 redis-server 127.0.0.1:6379 \[cluster\]  
root 19403 13207 0 14:05 pts/0 00:00:00 redis-server 127.0.0.1:6380 \[cluster\]  
root 19407 13207 0 14:05 pts/0 00:00:00 redis-server 127.0.0.1:6381 \[cluster\]  
root 19423 13207 0 14:05 pts/0 00:00:00 grep --color=auto redis  
root@test-1:/opt/redis-4.0.1/src\#  
root@test-1:/opt/redis-4.0.1/src\#  
root@test-1:/opt/redis-4.0.1/src\#netstat -anltp|grep redis  
tcp 0 0 127.0.0.1:6379 0.0.0.0:\* LISTEN 19399/redis-server  
tcp 0 0 127.0.0.1:6380 0.0.0.0:\* LISTEN 19403/redis-server  
tcp 0 0 127.0.0.1:6381 0.0.0.0:\* LISTEN 19407/redis-server  
tcp 0 0 127.0.0.1:16379 0.0.0.0:\* LISTEN 19399/redis-server  
tcp 0 0 127.0.0.1:16380 0.0.0.0:\* LISTEN 19403/redis-server  
tcp 0 0 127.0.0.1:16381 0.0.0.0:\* LISTEN 19407/redis-server  
  
**5、创建redis集群**

redis-trib.rb create --replicas 1 192.168.1.216:6379 192.168.1.216:6380 192.168.1.216:6381 192.168.1.215:6382 192.168.1.215:6383 192.168.1.215:6384  
root@test-1:/opt/redis-4.0.1/src\# ./redis-trib.rb create --replicas 1 192.168.1.216:6379 192.168.1.216:6380 192.168.1.216:6381 192.168.1.215:6382 192.168.1.215:6383 192.168.1.215:6384  
>>> Creating cluster  
>>> Performing hash slots allocation on 6 nodes...  
Using 3 masters:  
192.168.1.216:6379  
192.168.1.215:6382  
192.168.1.216:6380  
Adding replica 192.168.1.215:6383 to 192.168.1.216:6379  
Adding replica 192.168.1.216:6381 to 192.168.1.215:6382  
Adding replica 192.168.1.215:6384 to 192.168.1.216:6380  
M: 4fe30cd6d7f68496bd0182cb4e290c6807d5914b 192.168.1.216:6379  
slots:0-5460 (5461 slots) master  
M: 879dcd925764ba491f439a04547184d00b9251ce 192.168.1.216:6380  
slots:10923-16383 (5461 slots) master  
S: 31ce801811e6ba2dfd2cc520c3272eb41d52034b 192.168.1.216:6381  
replicates eb3821bab3cb2e6baec6993bb56764874696ffde  
M: eb3821bab3cb2e6baec6993bb56764874696ffde 192.168.1.215:6382  
slots:5461-10922 (5462 slots) master  
S: d59ac73c11e068b3b1b14e45a1e3b6f6d4f0c2d6 192.168.1.215:6383  
replicates 4fe30cd6d7f68496bd0182cb4e290c6807d5914b  
S: 26a70b0b02e76131d82ce9f4a80f7a4f357025db 192.168.1.215:6384  
replicates 879dcd925764ba491f439a04547184d00b9251ce  
Can I set the above configuration? (type 'yes' to accept): yes  
>>> Nodes configuration updated  
>>> Assign a different config epoch to each node  
19995:M 08 Aug 15:05:11.718 \# configEpoch set to 1 via CLUSTER SET-CONFIG-EPOCH  
20007:M 08 Aug 15:05:11.718 \# configEpoch set to 2 via CLUSTER SET-CONFIG-EPOCH  
20011:M 08 Aug 15:05:11.718 \# configEpoch set to 3 via CLUSTER SET-CONFIG-EPOCH  
>>> Sending CLUSTER MEET messages to join the cluster