Redis集羣的安裝測試(僞分佈模式 - 主從複製)

想跑一下Redis集羣,可是沒有那麼多服務器,因此使用僞分佈式模式,模擬一下,記錄一下安裝過程。node

軟件: redis-3.0.3.tar.gzredis

集羣正常工做至少須要3個主節點(本示例建立6個節點,3主3從節點)ruby

 

安裝前提,要有ruby、rubygems環境,先安裝一下:服務器

#安裝ruby
yum --nogpgcheck -y install ruby
yum --nogpgcheck -y install ruby-devel.x86_64

#安裝rubygem
yum --nogpgcheck -y install rubygems

#安裝Ruby的redis接口gem-redis

 

安裝Redis軟件app

#進入安裝目錄
cd /usr/local/
rm -rf redis
rm -rf redis-3.0.3

#解壓
tar -zxvf redis-3.0.3.tar.gz

mv redis-3.0.3 redis

#進入源碼目錄
cd redis

#編譯安裝
make && make install

 

建立集羣的相關配置less

#建立集羣須要的目錄
mkdir -p /usr/local/redis/cluster/16001/
mkdir -p /usr/local/redis/cluster/16002/
mkdir -p /usr/local/redis/cluster/16003/
mkdir -p /usr/local/redis/cluster/16004/
mkdir -p /usr/local/redis/cluster/16005/
mkdir -p /usr/local/redis/cluster/16006/


#修改配置文件redis.conf
#cp /usr/local/redis/redis.conf /usr/local/redis/cluster/16001/redis.conf
#cp /usr/local/redis/redis.conf /usr/local/redis/cluster/16002/redis.conf
#cp /usr/local/redis/redis.conf /usr/local/redis/cluster/16003/redis.conf
#cp /usr/local/redis/redis.conf /usr/local/redis/cluster/16004/redis.conf
#cp /usr/local/redis/redis.conf /usr/local/redis/cluster/16005/redis.conf
#cp /usr/local/redis/redis.conf /usr/local/redis/cluster/16006/redis.conf

 

配置文件示例:tcp

daemonize no
pidfile /var/run/redis.pid

#修改端口
port 16001

tcp-backlog 511
timeout 0
tcp-keepalive 0
loglevel notice
logfile ""
databases 16
save 900 1
save 300 10
save 60 10000
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename dump.rdb
dir ./
slave-serve-stale-data yes
slave-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
slave-priority 100

#修改成yes
appendonly yes

appendfilename "appendonly.aof"
appendfsync everysec
no-appendfsync-on-rewrite no
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 64mb
aof-load-truncated yes
lua-time-limit 5000
slowlog-log-slower-than 10000
slowlog-max-len 128
latency-monitor-threshold 0
notify-keyspace-events ""
hash-max-ziplist-entries 512
hash-max-ziplist-value 64
list-max-ziplist-entries 512
list-max-ziplist-value 64
set-max-intset-entries 512
zset-max-ziplist-entries 128
zset-max-ziplist-value 64
hll-sparse-max-bytes 3000
activerehashing yes
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit slave 256mb 64mb 60
client-output-buffer-limit pubsub 32mb 8mb 60
hz 10
aof-rewrite-incremental-fsync yes
#=========================新增===============================
daemonize yes
cluster-enabled yes
cluster-config-file nodes.conf
cluster-node-timeout 5000
#========================================================

 

啓動Redis實例:分佈式

#分別啓動這6個redis實例(此時,節點均以Redis Cluster的方式運行,但並無自動構建集羣,由於還處於「我不認識你,你不屬於我」的狀態,它們每一個都是孤零零的Redis節點,或者說只包含了一個節點的集羣)
cd /usr/local/redis/cluster/16001 && redis-server redis.conf > redis.log 2>&1 &

cd /usr/local/redis/cluster/16002 && redis-server redis.conf > redis.log 2>&1 &

cd /usr/local/redis/cluster/16003 && redis-server redis.conf > redis.log 2>&1 &

cd /usr/local/redis/cluster/16004 && redis-server redis.conf > redis.log 2>&1 &

cd /usr/local/redis/cluster/16005 && redis-server redis.conf > redis.log 2>&1 &

cd /usr/local/redis/cluster/16006 && redis-server redis.conf > redis.log 2>&1 &

##啓動以後使用命令查看redis的啓動狀況
ps -ef|grep redis測試

建立集羣,讓上面的實例互相通信lua

#建立集羣,讓上面的實例互相通信(1 表示爲每一個master分配一個salve)
/usr/local/redis/src/redis-trib.rb create --replicas 1 \
127.0.0.1:16001 \
127.0.0.1:16002 \
127.0.0.1:16003 \
127.0.0.1:16004 \
127.0.0.1:16005 \
127.0.0.1:16006

集羣建立完成,可使用下面的命令查看相關信息:

#查看集羣目前情況
redis-cli -c -p 16001

#打印集羣的信息
cluster info

#列出集羣當前已知的全部節點(node),以及這些節點的相關信息。
cluster nodes

 

輸出的信息:

127.0.0.1:16002 master - 0 1439345771781 2 connected 5461-10922
127.0.0.1:16003 master - 0 1439345772286 3 connected 10923-16383
127.0.0.1:16001 myself,master - 0 0 1 connected 0-5460
127.0.0.1:16004 slave 2566ea486fc30c911aafaf1b71130fd24a38dba9 0 1439345772791 4 connected
127.0.0.1:16005 slave edea1e50bd224c6895b1904bce79e83fa07d6017 0 1439345772286 5 connected
127.0.0.1:16006 slave ab06e033698627ce0ecd4c8c645585a1ae70cc84 0 1439345771276 6 connected

從上面的信息能夠明顯看到哪些是主節點、從節點。

#將節點的配置文件保存到硬盤裏

cluster saveconfig

#------------------------測試-----------------------------------
#鏈接端口(可使用其餘端口測試16001 -> 16006)
redis-cli -c -p 16001

127.0.0.1:16001> set key001 v001
127.0.0.1:16001> get key001

 

正常輸出信息的話,集羣創建成功,集羣搭建完成。

祝好運!!

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