linux redis3叢集安裝詳細步驟與測試 redis cluster
阿新 • • 發佈：2018-12-25
執行redis的建立叢集命令建立叢集
./redis-trib.rb create --replicas 1 192.168.215.129:7000 192.168.215.129:7001 192.168.215.129:7002 192.168.215.130:7003 192.168.215.130:7004 192.168.215.130:7005執行上面的命令的時候會報錯，因為是執行的ruby的指令碼，需要ruby的環境
錯誤內容：/usr/bin/env: ruby: No such file or directory6.1執行上面的命令的時候會報錯，因為是執行的ruby的指令碼，需要ruby的環境
所以需要安裝ruby的環境，這裡推薦使用
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yum install ruby |
然後再執行建立叢集命令，還會報錯，提示缺少rubygems元件，使用yum安裝
錯誤內容：
./redis-trib.rb:24:in `require': no such file to load -- rubygems (LoadError)
from ./redis-trib.rb:24
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yum install rubygems |
再次執行建立叢集命令，還會報錯，提示不能載入redis，是因為缺少redis和ruby的介面，使用gem 安裝
錯誤內容：
/usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require': no such file to load -- redis (LoadError)
from /usr/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
from ./redis-trib.rb:25
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gem install redis --version 3.0.0 |
注意：gem install redis --version 3.0.0 失敗的話，需要修改一下gem的源
gem sources --remove https://rubygems.org/
gem sources -a https://ruby.taobao.org/
新增ruby-china源：
[[email protected]software]# gem sources --add https://gems.ruby-china.org/ --remove https://rubygems.org/[[email protected] software]# gem sources -l*** CURRENT SOURCES ***https://gems.ruby-china.org/
結果操作一直阻塞在 Waiting
for the cluster to join.........................
開放埠：執行 vi /etc/sysconfig/iptables
新增 -A INPUT -p tcp -m state --state NEW -m tcp --dport 16379 -j ACCEPT 即添加了16379埠 其他埠一樣（）操作
然後儲存，重啟 service iptables restart
再次執行建立叢集的命令
再次執行建立叢集的命令，正常執行
[[email protected] src]# ./redis-trib.rb create --replicas 1 192.168.215.129:7000 192.168.215.129:7001 192.168.215.129:7002 192.168.215.130:7003 192.168.215.130:7004 192.168.215.130:7005
>>> Creating cluster
>>> Performing hash slots allocation on 6 nodes...
Using 3 masters:
192.168.215.129:7000
192.168.215.130:7003
192.168.215.129:7001
Adding replica 192.168.215.130:7004 to 192.168.215.129:7000
Adding replica 192.168.215.129:7002 to 192.168.215.130:7003
Adding replica 192.168.215.130:7005 to 192.168.215.129:7001
M: 16518afbfcbd961aeb76ef1592007a3e7fe24b1b 192.168.215.129:7000
slots:0-5460 (5461 slots) master
M: 524219969118a57ceaac753ecef7585f634cdf26 192.168.215.129:7001
slots:10923-16383 (5461 slots) master
S: ea4519ff0083a13cef8262490ee9e61e5a4b14b1 192.168.215.129:7002
replicates 82c0e591b9bc7a289026dff2873a254d1c49d285
M: 82c0e591b9bc7a289026dff2873a254d1c49d285 192.168.215.130:7003
slots:5461-10922 (5462 slots) master
S: baf74dd89c0605d2a71a8d1d3706005ff668563b 192.168.215.130:7004
replicates 16518afbfcbd961aeb76ef1592007a3e7fe24b1b
S: f8192314d2232e12ba9f558e9ecbfcc890f4fb73 192.168.215.130:7005
replicates 524219969118a57ceaac753ecef7585f634cdf26
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 192.168.215.129:7000)
M: 16518afbfcbd961aeb76ef1592007a3e7fe24b1b 192.168.215.129:7000
slots:0-5460 (5461 slots) master
1 additional replica(s)
S: ea4519ff0083a13cef8262490ee9e61e5a4b14b1 192.168.215.129:7002
slots: (0 slots) slave
replicates 82c0e591b9bc7a289026dff2873a254d1c49d285
S: f8192314d2232e12ba9f558e9ecbfcc890f4fb73 192.168.215.130:7005
slots: (0 slots) slave
replicates 524219969118a57ceaac753ecef7585f634cdf26
S: baf74dd89c0605d2a71a8d1d3706005ff668563b 192.168.215.130:7004
slots: (0 slots) slave
replicates 16518afbfcbd961aeb76ef1592007a3e7fe24b1b
M: 524219969118a57ceaac753ecef7585f634cdf26 192.168.215.129:7001
slots:10923-16383 (5461 slots) master
1 additional replica(s)
M: 82c0e591b9bc7a289026dff2873a254d1c49d285 192.168.215.130:7003
slots:5461-10922 (5462 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.解釋下， –replicas 1 表示 自動為每一個master節點分配一個slave節點 上面有6個節點，程式會按照一定規則生成 3個master（主）3個slave(從)
前面已經提醒過的 防火牆一定要開放監聽的埠，否則會建立失敗。