·聲明
1,已官網中文教程為基礎,邊看邊學,結合環境現狀搭建。
2,哥對Ruby不熱愛、不熟悉、不感冒,所述內容如有疑義請諒解。
3,3.0官說集群還在測試中,其實用用也還算馬馬虎虎,對外集群API真心少,望有識之士能夠出力。
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·準備材料
VM9,CentOS 6.4_x86_64(2.6+),SecureCRT,CentOS-6.4-x86_64-bin-DVD1.iso
redis官網:redis-3.0.0-beta1.tar.gz
ruby官網:rubygems-2.0.7.zip
rubygem官網:redis-3.0.7.gem
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·下鍋
1,把一些基礎包裝一下,后面會用到
service iptables stop
放入DVD1-
yum install –y gcc*
yum install –y ruby
yum install –y ruby-rdoc
2,裝redis
tar -xvf redis-3.0.0-beta1.tar.gz
cd redis-3.0.0-beta
make
make install
ll /usr/local/bin
3,配置集群(假定 $REDIS_HOME=/root/soft/redis,就像ORACLE_HOME一樣)
cd $REDIS_HOME
mkdir cluster-test
cd cluster-test
mkdir 7000 7001 7002 7003 7004 7005
vim redis.conf,修改內容如下:
port 7000 個性化
cluster- enabled yes cluster -config-file nodes. 7000 .conf 個性化 cluster -node-timeout 5000 appendonly yes appendfilename " appendonly.7000.aof " 個性化 deamonize yes pidfile 個性化 log 個性化
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cp ../redis.conf ./7000
cp ../redis.conf ./7001
cp ../redis.conf ./7002
cp ../redis.conf ./7003
cp ../redis.conf ./7004
cp ../redis.conf ./7005
cp /usr/local/bin/redis-server ./7000
cp /usr/local/bin/redis-server ./7001
cp /usr/local/bin/redis-server ./7002
cp /usr/local/bin/redis-server ./7003
cp /usr/local/bin/redis-server ./7004
cp /usr/local/bin/redis-server ./7005
/root/soft/redis/cluster-test/redis-server /root/soft/redis/cluster-test/7000/redis.conf
/root/soft/redis/cluster-test/redis-server /root/soft/redis/cluster-test/7001/redis.conf
/root/soft/redis/cluster-test/redis-server /root/soft/redis/cluster-test/7002/redis.conf
/root/soft/redis/cluster-test/redis-server /root/soft/redis/cluster-test/7003/redis.conf
/root/soft/redis/cluster-test/redis-server /root/soft/redis/cluster-test/7004/redis.conf
/root/soft/redis/cluster-test/redis-server /root/soft/redis/cluster-test/7005/redis.conf
如果需要看一看:ps –ef|grep redis
如果需要殺一殺:ps -ef|grep redis|egrep -v grep|awk -F ' ' '{print $2}'|xargs kill -9
4,配置ruby集群腳本
cd /root/soft/rubygems
ruby setup.rb
到redis-3.0.7.gem路徑下
gem install -l redis(不用L的話,走ruby官網,95%被WALL,你懂得,自己改source吧)
./redis-trib.rb create --replicas 1 127.0.0.1:7000 127.0.0.1:7002 127.0.0.3:7003 127.0.0.1:7004 127.0.0.1:7005 127.0.0.1:7005(半路記得“yes"一下)
>>> Creating cluster Connecting to node 127.0 . 0.1 : 7000 : OK Connecting to node 127.0 . 0.1 : 7001 : OK Connecting to node 127.0 . 0.1 : 7002 : OK Connecting to node 127.0 . 0.1 : 7003 : OK Connecting to node 127.0 . 0.1 : 7004 : OK Connecting to node 127.0 . 0.1 : 7005 : OK >>> Performing hash slots allocation on 6 nodes... Using 3 masters: 127.0 . 0.1 : 7000 127.0 . 0.1 : 7001 127.0 . 0.1 : 7002 127.0 . 0.1 : 7000 replica # 1 is 127.0 . 0.1 : 7003 127.0 . 0.1 : 7001 replica # 1 is 127.0 . 0.1 : 7004 127.0 . 0.1 : 7002 replica # 1 is 127.0 . 0.1 : 7005 M: bc66d90ca24eb6b69a3b375a4e242fef00de2052 127.0 . 0.1 : 7000 slots: 0 - 5460 ( 5461 slots) master M: bc66d90ca24eb6b69a3b375a4e242fef00de2052 127.0 . 0.1 : 7001 slots: 5461 - 10921 ( 5461 slots) master M: bc66d90ca24eb6b69a3b375a4e242fef00de2052 127.0 . 0.1 : 7002 slots: 10922 - 16383 ( 5462 slots) master S: bc66d90ca24eb6b69a3b375a4e242fef00de2052 127.0 . 0.1 : 7003 replicates bc66d90ca24eb6b69a3b375a4e242fef00de2052 S: bc66d90ca24eb6b69a3b375a4e242fef00de2052 127.0 . 0.1 : 7004 replicates bc66d90ca24eb6b69a3b375a4e242fef00de2052 S: bc66d90ca24eb6b69a3b375a4e242fef00de2052 127.0 . 0.1 : 7005 replicates bc66d90ca24eb6b69a3b375a4e242fef00de2052 Can I set the above configuration? (type ' yes ' to accept): yes >>> Nodes configuration updated >>> Sending CLUSTER MEET messages to join the cluster Waiting for the cluster to join... >>> Performing Cluster Check ( using node 127.0 . 0.1 : 7000 ) M: 75bab28893c3536aecdb9879df97db89b24ce21e 127.0 . 0.1 : 7000 slots: 5461 - 10921 ( 5461 slots) master M: cfc344721cad8a5ddb7a8d675eb3a4d6e5b9d1c1 127.0 . 0.1 : 7002 slots: 10922 - 16383 ( 5462 slots) master M: 01b3977a3f592fd1538e8c83f86bbba37d0c1058 127.0 . 0.3 : 7003 slots: 0 - 5460 ( 5461 slots) master M: df59fce238a1c538933bdc170edb27835d0b7cc7 127.0 . 0.1 : 7004 slots: ( 0 slots) master replicates 01b3977a3f592fd1538e8c83f86bbba37d0c1058 M: b6bdb2d309aa7f0b810288f24e975230419f25b1 127.0 . 0.1 : 7005 slots: ( 0 slots) master replicates 75bab28893c3536aecdb9879df97db89b24ce21e M: b6bdb2d309aa7f0b810288f24e975230419f25b1 127.0 . 0.1 : 7005 slots: ( 0 slots) master replicates cfc344721cad8a5ddb7a8d675eb3a4d6e5b9d1c1 [OK] All nodes agree about slots configuration. >>> Check for open slots... >>> Check slots coverage... [OK] All 16384 slots covered.
??redis-cli -c -p 7000
127.0 . 0.1 : 7000 > set b c -> Redirected to slot [ 3300 ] located at 127.0 . 0.1 : 7003 OK 127.0 . 0.1 : 7003 > set hello world OK 127.0 . 0.1 : 7003 > get foo -> Redirected to slot [ 12182 ] located at 127.0 . 0.1 : 7002 (nil) 127.0 . 0.1 : 7002 > get hello -> Redirected to slot [ 866 ] located at 127.0 . 0.1 : 7003 " world " 127.0 . 0.1 : 7003 > get b " c " 127.0 . 0.1 : 7003 >
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·FAQ
*** ERROR: Invalid configuration for cluster creation. *** Redis Cluster requires at least 3 master nodes. *** This is not possible with 4 nodes and 1 replicas per node. *** At least 6 nodes are required.
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·Redis官說,至少3+3,還延續著Master-Slave的設計理念,這點上個人覺得Cassandra的一致性確實了得。
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Either the node already knows other nodes
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·因為報錯是ruby報的,不太能夠理解其意思,因為我之前做了些單機壓測,可能直接疊上集群會有垃圾數據,所以把/var/db/和/var/log/下能清空的都清空了。
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[ 13321 ] 09 Mar 08 : 09 : 24.290 # Handshake error: we already know node bc66d90ca24eb6b69a3b375a4e242fef00de2052, updating the address if needed.
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·同樣道理,ruby報的錯,一開始一直在join被我ctrl+c之后開始報錯,用上面的方法無果。把所有app目錄清空然后redis重裝。大家測試時,最后事先vmware快照一下或者redis現網數據備份一下。
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·OK,自己爽一下吧
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