linux环境下redis集群的搭建全过程：
使用mount命令将光盘挂载到/mnt/cdrom目录下：
[root@hadoop03 ~]# mount -t iso9660 -o ro /dev/cdrom /mnt/cdrom
使用yum安装redis的编译环境gcc-c++：
[root@hadoop03 ~]# yum install gcc-c++
Loaded plugins: fastestmirror, refresh-packagekit, security
Setting up Install Process
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package gcc-c++.x86_64 0:4.4.7-16.el6 will be installed
--> Processing Dependency: libstdc++-devel = 4.4.7-16.el6 for package: gcc-c++-4.4.7-16.el6.x86_64
--> Running transaction check
---> Package libstdc++-devel.x86_64 0:4.4.7-16.el6 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
=======================================================================================================================================================================
Package Arch Version Repository Size
=======================================================================================================================================================================
Installing:
gcc-c++ x86_64 4.4.7-16.el6 c6-media 4.7 M
Installing for dependencies:
libstdc++-devel x86_64 4.4.7-16.el6 c6-media 1.6 M
Transaction Summary
=======================================================================================================================================================================
Install 2 Package(s)
Total download size: 6.3 M
Installed size: 20 M
Is this ok [y/N]: y
Downloading Packages:
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 25 MB/s | 6.3 MB 00:00
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : libstdc++-devel-4.4.7-16.el6.x86_64 1/2
Installing : gcc-c++-4.4.7-16.el6.x86_64 2/2
Verifying : libstdc++-devel-4.4.7-16.el6.x86_64 1/2
Verifying : gcc-c++-4.4.7-16.el6.x86_64 2/2
Installed:
gcc-c++.x86_64 0:4.4.7-16.el6
Dependency Installed:
libstdc++-devel.x86_64 0:4.4.7-16.el6
Complete!
[root@hadoop03 ~]# yum list |grep ruby
graphviz-ruby.x86_64 2.26.0-10.el6 c6-media
libselinux-ruby.x86_64 2.0.94-5.8.el6 c6-media
openwsman-ruby.x86_64 2.2.3-8.el6 c6-media
rrdtool-ruby.x86_64 1.3.8-7.el6 c6-media
ruby.x86_64 1.8.7.374-4.el6_6 c6-media
ruby-devel.i686 1.8.7.374-4.el6_6 c6-media
ruby-devel.x86_64 1.8.7.374-4.el6_6 c6-media
ruby-docs.x86_64 1.8.7.374-4.el6_6 c6-media
ruby-flexmock.noarch 0.8.6-1.1.el6 c6-media
ruby-irb.x86_64 1.8.7.374-4.el6_6 c6-media
ruby-libguestfs.x86_64 1:1.20.11-14.el6 c6-media
ruby-libs.i686 1.8.7.374-4.el6_6 c6-media
ruby-libs.x86_64 1.8.7.374-4.el6_6 c6-media
ruby-qpid.x86_64 0.7.946106-2.el6 c6-media
ruby-qpid-qmf.x86_64 0.14-14.el6_3 c6-media
ruby-rdoc.x86_64 1.8.7.374-4.el6_6 c6-media
ruby-ri.x86_64 1.8.7.374-4.el6_6 c6-media
ruby-saslwrapper.x86_64 0.14-1.el6 c6-media
ruby-static.x86_64 1.8.7.374-4.el6_6 c6-media
ruby-tcltk.x86_64 1.8.7.374-4.el6_6 c6-media
rubygem-flexmock.noarch 0.8.6-1.1.el6 c6-media
rubygem-flexmock-doc.noarch 0.8.6-1.1.el6 c6-media
rubygem-rake.noarch 0.8.7-2.1.el6 c6-media
rubygems.noarch 1.3.7-5.el6 c6-media
rubygems-devel.noarch 1.3.7-5.el6 c6-media
subversion-ruby.i686 1.6.11-14.el6 c6-media
subversion-ruby.x86_64 1.6.11-14.el6 c6-media
使用yum安装ruby：
[root@hadoop03 ~]# yum install ruby -y
Loaded plugins: fastestmirror, refresh-packagekit, security
Setting up Install Process
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package ruby.x86_64 0:1.8.7.374-4.el6_6 will be installed
--> Processing Dependency: ruby-libs = 1.8.7.374-4.el6_6 for package: ruby-1.8.7.374-4.el6_6.x86_64
--> Processing Dependency: libruby.so.1.8()(64bit) for package: ruby-1.8.7.374-4.el6_6.x86_64
--> Running transaction check
---> Package ruby-libs.x86_64 0:1.8.7.374-4.el6_6 will be installed
--> Processing Dependency: libreadline.so.5()(64bit) for package: ruby-libs-1.8.7.374-4.el6_6.x86_64
--> Running transaction check
---> Package compat-readline5.x86_64 0:5.2-17.1.el6 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
=======================================================================================================================================================================
Package Arch Version Repository Size
=======================================================================================================================================================================
Installing:
ruby x86_64 1.8.7.374-4.el6_6 c6-media 538 k
Installing for dependencies:
compat-readline5 x86_64 5.2-17.1.el6 c6-media 130 k
ruby-libs x86_64 1.8.7.374-4.el6_6 c6-media 1.7 M
Transaction Summary
=======================================================================================================================================================================
Install 3 Package(s)
Total download size: 2.3 M
Installed size: 7.8 M
Downloading Packages:
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 6.3 MB/s | 2.3 MB 00:00
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : compat-readline5-5.2-17.1.el6.x86_64 1/3
Installing : ruby-libs-1.8.7.374-4.el6_6.x86_64 2/3
Installing : ruby-1.8.7.374-4.el6_6.x86_64 3/3
Verifying : compat-readline5-5.2-17.1.el6.x86_64 1/3
Verifying : ruby-libs-1.8.7.374-4.el6_6.x86_64 2/3
Verifying : ruby-1.8.7.374-4.el6_6.x86_64 3/3
Installed:
ruby.x86_64 0:1.8.7.374-4.el6_6
Dependency Installed:
compat-readline5.x86_64 0:5.2-17.1.el6 ruby-libs.x86_64 0:1.8.7.374-4.el6_6
Complete!
使用yum安装rubygems：
[root@hadoop03 ~]# yum install rubygems -y
Loaded plugins: fastestmirror, refresh-packagekit, security
Setting up Install Process
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package rubygems.noarch 0:1.3.7-5.el6 will be installed
--> Processing Dependency: ruby-rdoc for package: rubygems-1.3.7-5.el6.noarch
--> Running transaction check
---> Package ruby-rdoc.x86_64 0:1.8.7.374-4.el6_6 will be installed
--> Processing Dependency: ruby-irb = 1.8.7.374-4.el6_6 for package: ruby-rdoc-1.8.7.374-4.el6_6.x86_64
--> Running transaction check
---> Package ruby-irb.x86_64 0:1.8.7.374-4.el6_6 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
=======================================================================================================================================================================
Package Arch Version Repository Size
=======================================================================================================================================================================
Installing:
rubygems noarch 1.3.7-5.el6 c6-media 207 k
Installing for dependencies:
ruby-irb x86_64 1.8.7.374-4.el6_6 c6-media 317 k
ruby-rdoc x86_64 1.8.7.374-4.el6_6 c6-media 381 k
Transaction Summary
=======================================================================================================================================================================
Install 3 Package(s)
Total download size: 905 k
Installed size: 3.0 M
Downloading Packages:
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 11 MB/s | 905 kB 00:00
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : ruby-irb-1.8.7.374-4.el6_6.x86_64 1/3
Installing : ruby-rdoc-1.8.7.374-4.el6_6.x86_64 2/3
Installing : rubygems-1.3.7-5.el6.noarch 3/3
Verifying : ruby-rdoc-1.8.7.374-4.el6_6.x86_64 1/3
Verifying : ruby-irb-1.8.7.374-4.el6_6.x86_64 2/3
Verifying : rubygems-1.3.7-5.el6.noarch 3/3
Installed:
rubygems.noarch 0:1.3.7-5.el6
Dependency Installed:
ruby-irb.x86_64 0:1.8.7.374-4.el6_6 ruby-rdoc.x86_64 0:1.8.7.374-4.el6_6
Complete!
[root@hadoop03 ~]# cd /root/apps/taotao/
[root@hadoop03 taotao]# ll
total 1392
-rw-r--r--. 1 root root 57856 Dec 29 05:14 redis-3.0.0.gem
-rw-r--r--. 1 root root 1358081 Dec 29 05:14 redis-3.0.0.tar.gz
drwxr-xr-x. 9 root root 4096 Dec 27 17:51 tomcat-manager-8080
使用gem install命令安装redis-3.0.0.gem：
[root@hadoop03 taotao]# gem install redis-3.0.0.gem
Successfully installed redis-3.0.0
1 gem installed
Installing ri documentation for redis-3.0.0...
Installing RDoc documentation for redis-3.0.0...
使用tar -zxvf命令来解压redis-3.0.0.tar.gz这个源码包：
[root@hadoop03 taotao]# tar -zxvf redis-3.0.0.tar.gz
.............
.............
.............
[root@hadoop03 taotao]# ll
total 1396
drwxrwxr-x. 6 root root 4096 Apr 1 2015 redis-3.0.0
-rw-r--r--. 1 root root 57856 Dec 29 05:14 redis-3.0.0.gem
-rw-r--r--. 1 root root 1358081 Dec 29 05:14 redis-3.0.0.tar.gz
drwxr-xr-x. 9 root root 4096 Dec 27 17:51 tomcat-manager-8080
进入到redis-3.0.0目录下面，使用make命令编译redis源码：
[root@hadoop03 taotao]# cd redis-3.0.0
[root@hadoop03 redis-3.0.0]# make
.............
.............
.............
LINK redis-server
INSTALL redis-sentinel
CC redis-cli.o
LINK redis-cli
CC redis-benchmark.o
LINK redis-benchmark
CC redis-check-dump.o
LINK redis-check-dump
CC redis-check-aof.o
LINK redis-check-aof
使用make install命令安装redis，并使用PREFIX指定要把redis安装到/root/apps/taotao/redis-taotao目录下：
[root@hadoop03 redis-3.0.0]# make install PREFIX=/root/apps/taotao/redis-taotao
cd src && make install
make[1]: Entering directory `/root/apps/taotao/redis-3.0.0/src'
Hint: It's a good idea to run 'make test' ;)
INSTALL install
INSTALL install
INSTALL install
INSTALL install
INSTALL install
make[1]: Leaving directory `/root/apps/taotao/redis-3.0.0/src'
[root@hadoop03 redis-3.0.0]# cd /root/apps/taotao/
[root@hadoop03 taotao]# ll
total 1400
drwxrwxr-x. 6 root root 4096 Apr 1 2015 redis-3.0.0
-rw-r--r--. 1 root root 57856 Dec 29 05:14 redis-3.0.0.gem
-rw-r--r--. 1 root root 1358081 Dec 29 05:14 redis-3.0.0.tar.gz
drwxr-xr-x. 3 root root 4096 Dec 29 06:11 redis-taotao
drwxr-xr-x. 9 root root 4096 Dec 27 17:51 tomcat-manager-8080
[root@hadoop03 taotao]# cd redis-taotao/
[root@hadoop03 redis-taotao]# ll
total 4
drwxr-xr-x. 2 root root 4096 Dec 29 06:11 bin
[root@hadoop03 redis-taotao]# cd bin/
[root@hadoop03 bin]# ll
total 15440
-rwxr-xr-x. 1 root root 4588878 Dec 29 06:11 redis-benchmark
-rwxr-xr-x. 1 root root 22185 Dec 29 06:11 redis-check-aof
-rwxr-xr-x. 1 root root 45403 Dec 29 06:11 redis-check-dump
-rwxr-xr-x. 1 root root 4691785 Dec 29 06:11 redis-cli
lrwxrwxrwx. 1 root root 12 Dec 29 06:11 redis-sentinel -> redis-server
-rwxr-xr-x. 1 root root 6450305 Dec 29 06:11 redis-server
把redis-3.0.0源码目录下面的redis.conf文件拷贝到/root/apps/taotao/redis-taotao/bin目录下：
[root@hadoop03 bin]# cp /root/apps/taotao/redis-3.0.0/redis.conf .
[root@hadoop03 bin]# ll
total 15484
-rwxr-xr-x. 1 root root 4588878 Dec 29 06:11 redis-benchmark
-rwxr-xr-x. 1 root root 22185 Dec 29 06:11 redis-check-aof
-rwxr-xr-x. 1 root root 45403 Dec 29 06:11 redis-check-dump
-rwxr-xr-x. 1 root root 4691785 Dec 29 06:11 redis-cli
-rw-r--r--. 1 root root 41403 Dec 29 06:15 redis.conf
lrwxrwxrwx. 1 root root 12 Dec 29 06:11 redis-sentinel -> redis-server
-rwxr-xr-x. 1 root root 6450305 Dec 29 06:11 redis-server
[root@hadoop03 bin]#
使用vi命令编辑redis.conf文件，将其中的配置参数"daemonize no"修改成"daemonize yes"，表示开启redis服务器的后台启动模式：
[root@hadoop03 bin]# vi redis.conf
# Redis configuration file example
# Note on units: when memory size is needed, it is possible to specify
# it in the usual form of 1k 5GB 4M and so forth:
#
# 1k => 1000 bytes
# 1kb => 1024 bytes
# 1m => 1000000 bytes
# 1mb => 1024*1024 bytes
# 1g => 1000000000 bytes
# 1gb => 1024*1024*1024 bytes
#
# units are case insensitive so 1GB 1Gb 1gB are all the same.
################################## INCLUDES ###################################
# Include one or more other config files here. This is useful if you
# have a standard template that goes to all Redis servers but also need
# to customize a few per-server settings. Include files can include
# other files, so use this wisely.
#
# Notice option "include" won't be rewritten by command "CONFIG REWRITE"
# from admin or Redis Sentinel. Since Redis always uses the last processed
# line as value of a configuration directive, you'd better put includes
# at the beginning of this file to avoid overwriting config change at runtime.
#
# If instead you are interested in using includes to override configuration
# options, it is better to use include as the last line.
#
# include /path/to/local.conf
# include /path/to/other.conf
################################ GENERAL #####################################
# By default Redis does not run as a daemon. Use 'yes' if you need it.
# Note that Redis will write a pid file in /var/run/redis.pid when daemonized.
daemonize yes
...............
...............
...............
...............
[root@hadoop03 bin]#
使用redis-server命令后面跟上redis.conf配置文件，就可以以后台模式启动redis服务器：
[root@hadoop03 bin]# ./redis-server redis.conf
查看redis的进程，说明redis服务器已经成功启动，其默认的端口号为6379：
[root@hadoop03 bin]# ps aux|grep redis
root 4251 0.1 0.3 137448 7544 ? Ssl 04:58 0:09 bin/redis-server *:6379
root 7275 0.0 0.0 103308 852 pts/1 S+ 06:27 0:00 grep redis
[root@hadoop03 bin]#
启动redis的客户端：
[root@hadoop03 bin]# ./redis-cli
下面是redis的一些常用命令：
127.0.0.1:6379> ping
PONG
127.0.0.1:6379> set a 10
OK
127.0.0.1:6379> get a
""
127.0.0.1:6379> keys *
1) "a"
让a加1的命令是incr：
127.0.0.1:6379> incr a
(integer) 11
让a减1的命令是decr：
127.0.0.1:6379> decr a
(integer) 10
127.0.0.1:6379> del a
(integer) 1
127.0.0.1:6379> keys *
(empty list or set)
127.0.0.1:6379>
[root@hadoop03 bin]#
然后是redis的常用数据类型是String,Hash,List,Set,SortedSet（其中的List和SortedSet比较耗费性能，因为它们要排序，
我们比较常用的数据类型是String和Hash，因为它们都是key-value类型的）。
[root@hadoop03 bin]# ll
total 15484
-rwxr-xr-x. 1 root root 4588878 Dec 29 06:11 redis-benchmark
-rwxr-xr-x. 1 root root 22185 Dec 29 06:11 redis-check-aof
-rwxr-xr-x. 1 root root 45403 Dec 29 06:11 redis-check-dump
-rwxr-xr-x. 1 root root 4691785 Dec 29 06:11 redis-cli
-rw-r--r--. 1 root root 41404 Dec 29 06:23 redis.conf
lrwxrwxrwx. 1 root root 12 Dec 29 06:11 redis-sentinel -> redis-server
-rwxr-xr-x. 1 root root 6450305 Dec 29 06:11 redis-server
[root@hadoop03 bin]# cd ..
[root@hadoop03 redis-taotao]# ll
total 4
drwxr-xr-x. 2 root root 4096 Dec 29 06:23 bin
[root@hadoop03 redis-taotao]# cd ..
[root@hadoop03 taotao]# ll
total 1400
drwxrwxr-x. 6 root root 4096 Apr 1 2015 redis-3.0.0
-rw-r--r--. 1 root root 57856 Dec 29 05:14 redis-3.0.0.gem
-rw-r--r--. 1 root root 1358081 Dec 29 05:14 redis-3.0.0.tar.gz
drwxr-xr-x. 3 root root 4096 Dec 29 06:11 redis-taotao
drwxr-xr-x. 9 root root 4096 Dec 27 17:51 tomcat-manager-8080
[root@hadoop03 taotao]# mkdir redis-cluster
[root@hadoop03 taotao]# ll
total 1404
drwxrwxr-x. 6 root root 4096 Apr 1 2015 redis-3.0.0
-rw-r--r--. 1 root root 57856 Dec 29 05:14 redis-3.0.0.gem
-rw-r--r--. 1 root root 1358081 Dec 29 05:14 redis-3.0.0.tar.gz
drwxr-xr-x. 2 root root 4096 Dec 29 06:39 redis-cluster
drwxr-xr-x. 3 root root 4096 Dec 29 06:11 redis-taotao
drwxr-xr-x. 9 root root 4096 Dec 27 17:51 tomcat-manager-8080
[root@hadoop03 taotao]# cp -r redis-taotao/bin/ redis-cluster/redis01
[root@hadoop03 taotao]# cd redis-cluster/
[root@hadoop03 redis-cluster]# ll
total 4
drwxr-xr-x. 2 root root 4096 Dec 29 06:43 redis01
[root@hadoop03 redis-cluster]# cd redis01/
[root@hadoop03 redis01]# ll
total 15484
-rwxr-xr-x. 1 root root 4588878 Dec 29 06:43 redis-benchmark
-rwxr-xr-x. 1 root root 22185 Dec 29 06:43 redis-check-aof
-rwxr-xr-x. 1 root root 45403 Dec 29 06:43 redis-check-dump
-rwxr-xr-x. 1 root root 4691785 Dec 29 06:43 redis-cli
-rw-r--r--. 1 root root 41404 Dec 29 06:43 redis.conf
lrwxrwxrwx. 1 root root 12 Dec 29 06:43 redis-sentinel -> redis-server
-rwxr-xr-x. 1 root root 6450305 Dec 29 06:43 redis-server
[root@hadoop03 redis01]# vi redis.conf
..................
..................
..................
..................
修改两个地方，一个把端口号"port 6379"改为"port 7001"（为了搭建redis集群，
我们需要创建6个redis实例，这6个redis实例的端口分别为7001~7006）；
还要修改一个地方，把配置文件中"# cluster-enabled yes"的注释打开，也就是把前面的"#"去掉，表示开启redis的集群模式：（由于这个redis.conf配置文件的内容非常多，在修改某项配置的时候，如果你不熟悉vi的常用命令，就会很麻烦。这里说一下如何在vi命令下查找指定的配置项，首先使用"vi redis.conf"命令进入配置文件内部，此时先不要进入编辑模式，我们以修改"# cluster-enabled yes"为例来进行说明，首先按"/"键可以进入查找模式，输入"cluster"关键字，然后按回车或者按小写的"n"键，可以向下查找该关键字，按大写的"N"键可以向上查找，等找到之后，按键盘左上角的"ESC"键可以退出查找模式，然后再按"i"键进入到文本编辑模式，这样就可以修改文件内容了。修改完，再按"ESC"键退出编辑模式，最后输入":wq"保存退出即可）
[root@hadoop03 redis01]# pwd
/root/apps/taotao/redis-cluster/redis01
[root@hadoop03 redis01]# ll
total 15484
-rwxr-xr-x. 1 root root 4588878 Dec 29 06:43 redis-benchmark
-rwxr-xr-x. 1 root root 22185 Dec 29 06:43 redis-check-aof
-rwxr-xr-x. 1 root root 45403 Dec 29 06:43 redis-check-dump
-rwxr-xr-x. 1 root root 4691785 Dec 29 06:43 redis-cli
-rw-r--r--. 1 root root 41402 Dec 29 06:57 redis.conf
lrwxrwxrwx. 1 root root 12 Dec 29 06:43 redis-sentinel -> redis-server
-rwxr-xr-x. 1 root root 6450305 Dec 29 06:43 redis-server
[root@hadoop03 redis01]# cd ..
[root@hadoop03 redis-cluster]# ll
total 4
drwxr-xr-x. 2 root root 4096 Dec 29 07:06 redis01
将redis01这个实例拷贝5份，这样就有了6个redis实例了：
[root@hadoop03 redis-cluster]# cp -r redis01/ redis02
[root@hadoop03 redis-cluster]# cp -r redis01/ redis03
[root@hadoop03 redis-cluster]# cp -r redis01/ redis04
[root@hadoop03 redis-cluster]# cp -r redis01/ redis05
[root@hadoop03 redis-cluster]# cp -r redis01/ redis06
[root@hadoop03 redis-cluster]# ll
total 24
drwxr-xr-x. 2 root root 4096 Dec 29 07:06 redis01
drwxr-xr-x. 2 root root 4096 Dec 29 07:07 redis02
drwxr-xr-x. 2 root root 4096 Dec 29 07:07 redis03
drwxr-xr-x. 2 root root 4096 Dec 29 07:07 redis04
drwxr-xr-x. 2 root root 4096 Dec 29 07:07 redis05
drwxr-xr-x. 2 root root 4096 Dec 29 07:07 redis06
[root@hadoop03 redis-cluster]#
下面使用vi命令将redis02/reids.conf文件的端口号为7002，将redis03/reids.conf文件的端口号为7003，将redis04/reids.conf文件的端口号为7004，将redis05/reids.conf文件的端口号为7005，将redis06/reids.conf文件的端口号为7006。
[root@hadoop03 redis-cluster]# cp /root/apps/taotao/redis-3.0.0/src/redis-trib.rb .
[root@hadoop03 redis-cluster]# ll
total 72
drwxr-xr-x. 2 root root 4096 Dec 29 07:06 redis01
drwxr-xr-x. 2 root root 4096 Dec 29 07:10 redis02
drwxr-xr-x. 2 root root 4096 Dec 29 07:11 redis03
drwxr-xr-x. 2 root root 4096 Dec 29 07:11 redis04
drwxr-xr-x. 2 root root 4096 Dec 29 07:11 redis05
drwxr-xr-x. 2 root root 4096 Dec 29 07:12 redis06
-rwxr-xr-x. 1 root root 48141 Dec 29 07:17 redis-trib.rb
[root@hadoop03 redis-cluster]# vim start-all.sh
cd redis01
./redis-server redis.conf
cd ../redis02
./redis-server redis.conf
cd ../redis03
./redis-server redis.conf
cd ../redis04
./redis-server redis.conf
cd ../redis05
./redis-server redis.conf
cd ../redis06
./redis-server redis.conf
~
~
~
"start-all.sh" [New] 13L, 223C written
[root@hadoop03 redis-cluster]# ll
total 76
drwxr-xr-x. 2 root root 4096 Dec 29 07:06 redis01
drwxr-xr-x. 2 root root 4096 Dec 29 07:10 redis02
drwxr-xr-x. 2 root root 4096 Dec 29 07:11 redis03
drwxr-xr-x. 2 root root 4096 Dec 29 07:11 redis04
drwxr-xr-x. 2 root root 4096 Dec 29 07:11 redis05
drwxr-xr-x. 2 root root 4096 Dec 29 07:12 redis06
-rwxr-xr-x. 1 root root 48141 Dec 29 07:17 redis-trib.rb
-rw-r--r--. 1 root root 223 Dec 29 07:22 start-all.sh
[root@hadoop03 redis-cluster]# chmod +x start-all.sh
[root@hadoop03 redis-cluster]# ll
total 76
drwxr-xr-x. 2 root root 4096 Dec 29 07:06 redis01
drwxr-xr-x. 2 root root 4096 Dec 29 07:10 redis02
drwxr-xr-x. 2 root root 4096 Dec 29 07:11 redis03
drwxr-xr-x. 2 root root 4096 Dec 29 07:11 redis04
drwxr-xr-x. 2 root root 4096 Dec 29 07:11 redis05
drwxr-xr-x. 2 root root 4096 Dec 29 07:12 redis06
-rwxr-xr-x. 1 root root 48141 Dec 29 07:17 redis-trib.rb
-rwxr-xr-x. 1 root root 223 Dec 29 07:22 start-all.sh
[root@hadoop03 redis-cluster]# ./start-all.sh
[root@hadoop03 redis-cluster]# ps aux|grep redis
root 7425 0.0 0.3 137440 7192 ? Ssl 07:30 0:00 ./redis-server *:7001 [cluster]
root 7429 0.0 0.3 137440 7192 ? Ssl 07:30 0:00 ./redis-server *:7002 [cluster]
root 7433 0.0 0.3 137440 7192 ? Ssl 07:30 0:00 ./redis-server *:7003 [cluster]
root 7437 0.0 0.3 137440 7192 ? Ssl 07:30 0:00 ./redis-server *:7004 [cluster]
root 7441 0.0 0.3 137440 7192 ? Ssl 07:30 0:00 ./redis-server *:7005 [cluster]
root 7445 0.0 0.3 137440 7192 ? Ssl 07:30 0:00 ./redis-server *:7006 [cluster]
root 7449 0.0 0.0 103308 852 pts/1 S+ 07:30 0:00 grep redis
[root@hadoop03 redis-cluster]# ll
total 76
drwxr-xr-x. 2 root root 4096 Dec 29 07:23 redis01
drwxr-xr-x. 2 root root 4096 Dec 29 07:28 redis02
drwxr-xr-x. 2 root root 4096 Dec 29 07:28 redis03
drwxr-xr-x. 2 root root 4096 Dec 29 07:28 redis04
drwxr-xr-x. 2 root root 4096 Dec 29 07:27 redis05
drwxr-xr-x. 2 root root 4096 Dec 29 07:27 redis06
-rwxr-xr-x. 1 root root 48141 Dec 29 07:17 redis-trib.rb
-rwxr-xr-x. 1 root root 238 Dec 29 07:29 start-all.sh
[root@hadoop03 redis-cluster]# ./redis-trib.rb create --replicas 1 hadoop03:7001 hadoop03:7002 hadoop03:7003 hadoop03:7004 hadoop03:7005 hadoop03:7006
>>> Creating cluster
Connecting to node hadoop03:7001: OK
Connecting to node hadoop03:7002: OK
Connecting to node hadoop03:7003: OK
Connecting to node hadoop03:7004: OK
Connecting to node hadoop03:7005: OK
Connecting to node hadoop03:7006: OK
>>> Performing hash slots allocation on 6 nodes...
Using 3 masters:
hadoop03:7001
hadoop03:7002
hadoop03:7003
Adding replica hadoop03:7004 to hadoop03:7001
Adding replica hadoop03:7005 to hadoop03:7002
Adding replica hadoop03:7006 to hadoop03:7003
M: 0fd6c1222175177b52ce67faae99667d7be2105b hadoop03:7001
slots:0-5460 (5461 slots) master
M: 4cc89e4d921d0e6fc3860b2dbf718faa22b6b647 hadoop03:7002
slots:5461-10922 (5462 slots) master
M: 868309d4d7277f125cc351aa13e95dd94838d77b hadoop03:7003
slots:10923-16383 (5461 slots) master
S: c2c00c4198be8113d2d6a5b43d240114224afedb hadoop03:7004
replicates 0fd6c1222175177b52ce67faae99667d7be2105b
S: 51fcf8b26a49dbeaf0cf1e784d38ca4b62112dce hadoop03:7005
replicates 4cc89e4d921d0e6fc3860b2dbf718faa22b6b647
S: f65c49c522f236e31cd672f5d6f65aa3de38bcd9 hadoop03:7006
replicates 868309d4d7277f125cc351aa13e95dd94838d77b
Can I set the above configuration? (type 'yes' to accept): yes
>>> Nodes configuration updated
>>> Assign a different config epoch to each node
>>> Sending CLUSTER MEET messages to join the cluster
/usr/lib/ruby/gems/1.8/gems/redis-3.0.0/lib/redis/client.rb:79:in `call': ERR Invalid node address specified: hadoop03:7001 (Redis::CommandError)
from /usr/lib/ruby/gems/1.8/gems/redis-3.0.0/lib/redis.rb:2190:in `method_missing'
from /usr/lib/ruby/gems/1.8/gems/redis-3.0.0/lib/redis.rb:36:in `synchronize'
from /usr/lib/ruby/1.8/monitor.rb:242:in `mon_synchronize'
from /usr/lib/ruby/gems/1.8/gems/redis-3.0.0/lib/redis.rb:36:in `synchronize'
from /usr/lib/ruby/gems/1.8/gems/redis-3.0.0/lib/redis.rb:2189:in `method_missing'
from ./redis-trib.rb:692:in `join_cluster'
from ./redis-trib.rb:690:in `each'
from ./redis-trib.rb:690:in `join_cluster'
from ./redis-trib.rb:1002:in `create_cluster_cmd'
from ./redis-trib.rb:1373:in `send'
from ./redis-trib.rb:1373
[root@hadoop03 redis-cluster]# vim start-all.sh
cd redis01
./redis-server redis.conf
cd ../
cd redis02
./redis-server redis.conf
cd ../
cd redis03
./redis-server redis.conf
cd ../
cd redis04
./redis-server redis.conf
cd ../
cd redis05
./redis-server redis.conf
cd ../
cd redis06
./redis-server redis.conf
~
~
~
"start-all.sh" 18L, 258C written
[root@hadoop03 redis-cluster]# vim shutdown-all.sh
redis01/redis-cli -p 7001 shutdown
redis01/redis-cli -p 7002 shutdown
redis01/redis-cli -p 7003 shutdown
redis01/redis-cli -p 7004 shutdown
redis01/redis-cli -p 7005 shutdown
redis01/redis-cli -p 7006 shutdown
~
~
~
~
"shutdown-all.sh" 6L, 210C written
[root@hadoop03 redis-cluster]# ll
total 80
drwxr-xr-x. 2 root root 4096 Dec 29 08:40 redis01
drwxr-xr-x. 2 root root 4096 Dec 29 08:40 redis02
drwxr-xr-x. 2 root root 4096 Dec 29 08:40 redis03
drwxr-xr-x. 2 root root 4096 Dec 29 08:40 redis04
drwxr-xr-x. 2 root root 4096 Dec 29 08:40 redis05
drwxr-xr-x. 2 root root 4096 Dec 29 08:40 redis06
-rwxr-xr-x. 1 root root 48141 Dec 29 07:17 redis-trib.rb
-rwxr-xr-x. 1 root root 210 Dec 29 09:01 shutdown-all.sh
-rwxr-xr-x. 1 root root 258 Dec 29 09:00 start-all.sh
[root@hadoop03 redis-cluster]# ./start-all.sh
[root@hadoop03 redis-cluster]# ps aux|grep redis
root 7717 0.1 0.3 137440 7204 ? Ssl 09:01 0:00 ./redis-server *:7001 [cluster]
root 7721 0.0 0.3 137440 7204 ? Ssl 09:01 0:00 ./redis-server *:7002 [cluster]
root 7725 0.1 0.3 137440 7204 ? Ssl 09:01 0:00 ./redis-server *:7003 [cluster]
root 7729 0.1 0.3 137440 7204 ? Ssl 09:01 0:00 ./redis-server *:7004 [cluster]
root 7733 1.0 0.3 137440 7204 ? Ssl 09:01 0:00 ./redis-server *:7005 [cluster]
root 7737 1.1 0.3 137440 7204 ? Ssl 09:01 0:00 ./redis-server *:7006 [cluster]
root 7741 0.0 0.0 103308 852 pts/1 S+ 09:02 0:00 grep redis
[root@hadoop03 redis-cluster]# redis01/redis-cli -h hadoop03 -p 7001
hadoop03:7001> keys *
(empty list or set)
hadoop03:7001> set a "hello"
(error) CLUSTERDOWN The cluster is down
hadoop03:7001>
这里在使用set命令的时候，发现报了一个错误，说集群宕机了。
但是有人说在使用"./redis-trib.rb"脚本创建集群的时候不能使用hostname，只能使用ip地址。
而我们上面再创建redis集群的时候使用了hostname，并且还报了如下错误（一开始没仔细看，意味redis集群创建成功了，晕死！）：
"ERR Invalid node address specified: hadoop03:7001"
所以这里只能把6个redis实例都删除，重新创建。
然后在使用"./redis-trib.rb"脚本创建redis集群的时候，使用ip地址，而不再使用hostname了。
===================================================================================
[root@hadoop03 redis-cluster]# rm -rf redis0*
[root@hadoop03 redis-cluster]# ll
total 56
-rwxr-xr-x. 1 root root 48141 Dec 29 07:17 redis-trib.rb
-rwxr-xr-x. 1 root root 210 Dec 29 09:01 shutdown-all.sh
-rwxr-xr-x. 1 root root 258 Dec 29 09:20 start-all.sh
然后重新创建6个redis实例，并记得修改各自的redis.conf配置文件，创建的过程这里就不赘述了。
创建好6个redis实例之后，启动6个redis服务器。然后使用如下命令创建redis机器：
注意，在创建redis集群的时候，一定要先将6个redis实例都启动起来，否则会报如下错误：
"[ERR] Sorry, can't connect to node localhost:7001"
所以我们先使用自己编写的一个批量启动6个redis实例的脚本"start-all.sh"来启动：
[root@hadoop03 redis-cluster]# ./start-all.sh
下面开始使用redis-trib.rb脚本来创建redis集群，注意这里我们不要使用hostname，而要使用ip地址，否则创建不成功：
[root@hadoop03 redis-cluster]# ./redis-trib.rb create --replicas 1 192.168.71.13:7001 192.168.71.13:7002 192.168.71.13:7003 192.168.71.13:7004 192.168.71.13:7005 192.168.71.13:7006
>>> Creating cluster
Connecting to node 192.168.71.13:7001: OK
Connecting to node 192.168.71.13:7002: OK
Connecting to node 192.168.71.13:7003: OK
Connecting to node 192.168.71.13:7004: OK
Connecting to node 192.168.71.13:7005: OK
Connecting to node 192.168.71.13:7006: OK
>>> Performing hash slots allocation on 6 nodes...
Using 3 masters:
192.168.71.13:7001
192.168.71.13:7002
192.168.71.13:7003
Adding replica 192.168.71.13:7004 to 192.168.71.13:7001
Adding replica 192.168.71.13:7005 to 192.168.71.13:7002
Adding replica 192.168.71.13:7006 to 192.168.71.13:7003
M: da485e47257b52eb457272bbab16795c1bdcbc3d 192.168.71.13:7001
slots:0-5460 (5461 slots) master
M: 33ae8f68dcf84547f8476a18b043b3e84f6a0321 192.168.71.13:7002
slots:5461-10922 (5462 slots) master
M: 6ee499d8a897c632d006acc39d54e6ed6f48835b 192.168.71.13:7003
slots:10923-16383 (5461 slots) master
S: 671ffee6f16eec82a1dfa1dc0a5b54cc559ed55b 192.168.71.13:7004
replicates da485e47257b52eb457272bbab16795c1bdcbc3d
S: 399ee55a7a1feaa9d5b1219eac61800a4fbc4870 192.168.71.13:7005
replicates 33ae8f68dcf84547f8476a18b043b3e84f6a0321
S: ca70f5e727e90bd9cf248d6eef3aabfcaf255bab 192.168.71.13:7006
replicates 6ee499d8a897c632d006acc39d54e6ed6f48835b
Can I set the above configuration? (type 'yes' to accept): yes
>>> Nodes configuration updated
>>> Assign a different config epoch to each node
>>> Sending CLUSTER MEET messages to join the cluster
Waiting for the cluster to join....
>>> Performing Cluster Check (using node 192.168.71.13:7001)
M: da485e47257b52eb457272bbab16795c1bdcbc3d 192.168.71.13:7001
slots:0-5460 (5461 slots) master
M: 33ae8f68dcf84547f8476a18b043b3e84f6a0321 192.168.71.13:7002
slots:5461-10922 (5462 slots) master
M: 6ee499d8a897c632d006acc39d54e6ed6f48835b 192.168.71.13:7003
slots:10923-16383 (5461 slots) master
M: 671ffee6f16eec82a1dfa1dc0a5b54cc559ed55b 192.168.71.13:7004
slots: (0 slots) master
replicates da485e47257b52eb457272bbab16795c1bdcbc3d
M: 399ee55a7a1feaa9d5b1219eac61800a4fbc4870 192.168.71.13:7005
slots: (0 slots) master
replicates 33ae8f68dcf84547f8476a18b043b3e84f6a0321
M: ca70f5e727e90bd9cf248d6eef3aabfcaf255bab 192.168.71.13:7006
slots: (0 slots) master
replicates 6ee499d8a897c632d006acc39d54e6ed6f48835b
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.
[root@hadoop03 redis-cluster]#
到这里，看到"[OK] All 16384 slots covered."的日志，说明我们的redis集群终于创建成功了。
下面我们开始连接redis集群，这里只要使用任意一个redis客户端连接到redis集群中的任意一个redis节点都可以。
注意这里连接的时候一定要指定"-c"这个参数，它表示集群。
我们这里就使用redis01下面的redis-cli通过连接7002端口的redis节点进入redis集群：
[root@hadoop03 redis-cluster]# redis01/redis-cli -h 192.168.71.13 -p 7002
192.168.71.13:7002> keys *
(empty list or set)
192.168.71.13:7002> set a 10
(error) MOVED 15495 192.168.71.13:7003
192.168.71.13:7002>
[root@hadoop03 redis-cluster]# redis01/redis-cli -h 192.168.71.13 -p 7002 -c
192.168.71.13:7002> keys *
(empty list or set)
192.168.71.13:7002> set a 10
-> Redirected to slot [15495] located at 192.168.71.13:7003
OK
192.168.71.13:7003> get a
""
192.168.71.13:7003>