linux redis集群安装

落日映苍穹つ 2022-12-16 15:21 177阅读 0赞

### redis集群安装 ###

*  redis集群安装
 *   *  1.下载redis
     *  2.创建节点目录并安装
     *  修改配置文件
     *  将配置文件翻入各自目录中
     *  启动redis
     *  上传gem
     *  创建集群
     *  新增集群节点
     *  查询集群状态

# redis集群安装 #

## 1.下载redis ##

从官网中可以下下载到最新版本的redis，我这里使用的是5.0.4版本的

wget https://download.redis.io/releases/redis-5.0.4.tar.gz

## 2.创建节点目录并安装 ##

*  创建节点目录（演示在同一台机器的不同端口）

mkdir /app/redis-cluster/redis-1-8701
    mkdir /app/redis-cluster/redis-2-8702
    mkdir /app/redis-cluster/redis-3-8703
    mkdir /app/redis-cluster/redis-4-8704
    mkdir /app/redis-cluster/redis-5-8705
    mkdir /app/redis-cluster/redis-6-8705

*  进入到redis的下载目录

# 进入目录
    cd /user/local/redis
    # 解压文件
    tar zvf redis-5.0.4.tar.gz

*  安装到定义目录

make install PREFIX=/app/redis-cluster/redis-1-8701
    make install PREFIX=/app/redis-cluster/redis-2-8702
    make install PREFIX=/app/redis-cluster/redis-3-8703
    make install PREFIX=/app/redis-cluster/redis-4-8704
    make install PREFIX=/app/redis-cluster/redis-5-8705
    make install PREFIX=/app/redis-cluster/redis-6-8706

## 修改配置文件 ##

# 主要修改一下四点
    port 8701-8706 # 每个节点配置文件只有这里不一样
    cluster-enabled yes
    masterauth  集群认证密码  ## 如果需要密码则设置 
    requirepass 登录认证密码  ## 如果需要密码则设置 
    ## 数据库文件可以根据自己需要配置这里就使用默认的

## 将配置文件翻入各自目录中 ##

cp redis.conf /app/redis-cluster/redis-1-8701/bin
    cp redis.conf /app/redis-cluster/redis-2-8702/bin
    cp redis.conf /app/redis-cluster/redis-3-8703/bin
    cp redis.conf /app/redis-cluster/redis-4-8704/bin
    cp redis.conf /app/redis-cluster/redis-5-8705/bin
    cp redis.conf /app/redis-cluster/redis-6-8706/bin

## 启动redis ##

*  在各自的bin目录下执行 如 /app/redis-cluster/redis-1-8701/bin

./redis-server redis.conf

## 上传gem ##

*  需要安装 ruby用于搭建redis集群的脚本

yum install -y gcc-c++ patch readline readline-devel zlib zlib-devel libyaml-devel libffi-devel openssl-devel make bzip2 autoconf automake libtool bison iconv-devel
    yum install gem

*  安装过程中可能出现的问题

curl -L get.rvm.io | bash -s stable
      % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                     Dload  Upload   Total   Spent    Left  Speed
    100   194  100   194    0     0    287      0 --:--:-- --:--:-- --:--:--   288
    100 24535  100 24535    0     0  15448      0  0:00:01  0:00:01 --:--:-- 32932
    Downloading https://github.com/rvm/rvm/archive/1.29.10.tar.gz
    Downloading https://github.com/rvm/rvm/releases/download/1.29.10/1.29.10.tar.gz.asc
    gpg: 已创建目录‘/root/.gnupg’
    gpg: 新的配置文件‘/root/.gnupg/gpg.conf’已建立
    gpg: 警告：在‘/root/.gnupg/gpg.conf’里的选项于此次运行期间未被使用
    gpg: 钥匙环‘/root/.gnupg/pubring.gpg’已建立
    gpg: 于 2020年03月26日 星期四 05时58分42秒 CST 创建的签名，使用 RSA，钥匙号 39499BDB
    gpg: 无法检查签名：没有公钥
    GPG signature verification failed for '/usr/local/rvm/archives/rvm-1.29.10.tgz' - 'https://github.com/rvm/rvm/releases/download/1.29.10/1.29.10.tar.gz.asc'! Try to install GPG v2 and then fetch the public key:
    
        gpg2 --keyserver hkp://pool.sks-keyservers.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
    
    or if it fails:
    
        command curl -sSL https://rvm.io/mpapis.asc | gpg2 --import -
        command curl -sSL https://rvm.io/pkuczynski.asc | gpg2 --import -
    
    In case of further problems with validation please refer to https://rvm.io/rvm/security

*  执行提示的命令后再次安装

command curl -sSL https://rvm.io/mpapis.asc | gpg2 --import -
    command curl -sSL https://rvm.io/pkuczynski.asc | gpg2 --import -

*  ruby需要大于2.4.0

source /etc/profile.d/rvm.sh
    rvm list known
    rvm install 2.4
    ruby -v
    gem install redis

## 创建集群 ##

./redis-cli --cluster create  127.0.0.1:8701 127.0.0.1:8702 127.0.0.1:8703 127.0.0.1:8704 127.0.0.1:8705 127.0.0.1:8706 --cluster-replicas 1 -a 密码
    Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe.
    >>> Performing hash slots allocation on 6 nodes...
    Master[0] -> Slots 0 - 5460
    Master[1] -> Slots 5461 - 10922
    Master[2] -> Slots 10923 - 16383
    Adding replica 127.0.0.1:8705 to 127.0.0.1:8701
    Adding replica 127.0.0.1:8706 to 127.0.0.1:8702
    Adding replica 127.0.0.1:8704 to 127.0.0.1:8703
    >>> Trying to optimize slaves allocation for anti-affinity
    [WARNING] Some slaves are in the same host as their master
    M: 3e5d226358b60a9738c3d33252f806b6174770fb 127.0.0.1:8701
       slots:[0-5460] (5461 slots) master
    M: 1b82eb3feaef05a61384cc958b6ab3d5260c568e 127.0.0.1:8702
       slots:[5461-10922] (5462 slots) master
    M: bd3bfdc6e76b0fe0a1d70fe5c0818c271cec443c 127.0.0.1:8703
       slots:[10923-16383] (5461 slots) master
    S: 71666db8a984818587fc2a12434f13bd1fb2eca9 127.0.0.1:8704
       replicates 1b82eb3feaef05a61384cc958b6ab3d5260c568e
    S: 9fb977d91f2fcc9cd2474d38829303657b216167 127.0.0.1:8705
       replicates bd3bfdc6e76b0fe0a1d70fe5c0818c271cec443c
    S: db985cda50930a9336de32cd5740fb9010bb222b 127.0.0.1:8706
       replicates 3e5d226358b60a9738c3d33252f806b6174770fb
    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 127.0.0.1:8701)
    M: 3e5d226358b60a9738c3d33252f806b6174770fb 127.0.0.1:8701
       slots:[0-5460] (5461 slots) master
       1 additional replica(s)
    S: db985cda50930a9336de32cd5740fb9010bb222b 127.0.0.1:8706
       slots: (0 slots) slave
       replicates 3e5d226358b60a9738c3d33252f806b6174770fb
    S: 71666db8a984818587fc2a12434f13bd1fb2eca9 127.0.0.1:8704
       slots: (0 slots) slave
       replicates 1b82eb3feaef05a61384cc958b6ab3d5260c568e
    M: 1b82eb3feaef05a61384cc958b6ab3d5260c568e 127.0.0.1:8702
       slots:[5461-10922] (5462 slots) master
       1 additional replica(s)
    S: 9fb977d91f2fcc9cd2474d38829303657b216167 127.0.0.1:8705
       slots: (0 slots) slave
       replicates bd3bfdc6e76b0fe0a1d70fe5c0818c271cec443c
    M: bd3bfdc6e76b0fe0a1d70fe5c0818c271cec443c 127.0.0.1:8703
       slots:[10923-16383] (5461 slots) master
       1 additional replica(s)
    [OK] All nodes agree about slots configuration.
    >>> Check for open slots...
    >>> Check slots coverage...
    [OK] All 16384 slots covered.

集群创建成功

## 新增集群节点 ##

redis-cli --cluster add-node 127.0.0.1:8701 -a 密码
    ## 如果灭有密码则可以直接这样加入
    redis-cli --cluster add-node 127.0.0.1:8701

## 查询集群状态 ##

./redis-cli --cluster check 127.0.0.1:8701 -a 密码
    Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe.
    127.0.0.1:8701 (3e5d2263...) -> 0 keys | 5461 slots | 1 slaves.
    127.0.0.1:8702 (1b82eb3f...) -> 0 keys | 5462 slots | 1 slaves.
    127.0.0.1:8703 (bd3bfdc6...) -> 0 keys | 5461 slots | 1 slaves.
    [OK] 0 keys in 3 masters.
    0.00 keys per slot on average.
    >>> Performing Cluster Check (using node 127.0.0.1:8701)
    M: 3e5d226358b60a9738c3d33252f806b6174770fb 127.0.0.1:8701
       slots:[0-5460] (5461 slots) master
       1 additional replica(s)
    S: db985cda50930a9336de32cd5740fb9010bb222b 127.0.0.1:8706
       slots: (0 slots) slave
       replicates 3e5d226358b60a9738c3d33252f806b6174770fb
    S: 71666db8a984818587fc2a12434f13bd1fb2eca9 127.0.0.1:8704
       slots: (0 slots) slave
       replicates 1b82eb3feaef05a61384cc958b6ab3d5260c568e
    M: 1b82eb3feaef05a61384cc958b6ab3d5260c568e 127.0.0.1:8702
       slots:[5461-10922] (5462 slots) master
       1 additional replica(s)
    S: 9fb977d91f2fcc9cd2474d38829303657b216167 127.0.0.1:8705
       slots: (0 slots) slave
       replicates bd3bfdc6e76b0fe0a1d70fe5c0818c271cec443c
    M: bd3bfdc6e76b0fe0a1d70fe5c0818c271cec443c 127.0.0.1:8703
       slots:[10923-16383] (5461 slots) master
       1 additional replica(s)
    [OK] All nodes agree about slots configuration.
    >>> Check for open slots...
    >>> Check slots coverage...
    [OK] All 16384 slots covered.

All 16384 slots covered 所有的插槽均有覆盖到  
这里一共有6台redis，三主三从一个插槽均有2分副本