Redis单实例数据迁移到集群
时间:2019-06-12
本文章向大家介绍Redis单实例数据迁移到集群,主要包括Redis单实例数据迁移到集群使用实例、应用技巧、基本知识点总结和需要注意事项,具有一定的参考价值,需要的朋友可以参考一下。
环境说明
单机redis
192.168.41.101:6379
redis集群
192.168.41.101:7000 master 192.168.41.101:7001 master 192.168.41.101:7002 192.168.41.102:7000 master 192.168.41.102:7001 192.168.41.102:7002
迁移步骤
查看集群状态及节点槽分布
[root@blaze bin]# ./redis-cli -c -p 7000
127.0.0.1:7000> cluster nodes
ab6d9f956de325cb4cf001abc31df365a5db5234 192.168.41.102:7001 slave 923c9ea13ec8fc19bed309dfbfad094320e1ca41 0 1560304528263 7 connected
48629733acbb8a580a39403dfac92845d63c97b3 192.168.41.101:7001 master - 0 1560304529768 2 connected 5461-10921
2cec8ac00f760c45d86f7903cefad85ec36704e7 192.168.41.102:7002 slave 923c9ea13ec8fc19bed309dfbfad094320e1ca41 0 1560304531271 7 connected
923c9ea13ec8fc19bed309dfbfad094320e1ca41 192.168.41.101:7000 myself,master - 0 0 7 connected 0-5460
e65b319e83997ed6f5323a26aaccba3f35522cbd 192.168.41.101:7002 slave 923c9ea13ec8fc19bed309dfbfad094320e1ca41 0 1560304532274 7 connected
5c0888d5bcceda2904311cbd5405596217c48105 192.168.41.102:7000 master - 0 1560304530268 4 connected 10922-16383
[root@blaze src]# ./redis-trib.rb check 192.168.41.101:7000
>>> Performing Cluster Check (using node 192.168.41.101:7000)
M: 923c9ea13ec8fc19bed309dfbfad094320e1ca41 192.168.41.101:7000
slots:0-5460 (5461 slots) master
3 additional replica(s)
S: ab6d9f956de325cb4cf001abc31df365a5db5234 192.168.41.102:7001
slots: (0 slots) slave
replicates 923c9ea13ec8fc19bed309dfbfad094320e1ca41
M: 48629733acbb8a580a39403dfac92845d63c97b3 192.168.41.101:7001
slots:5461-10921 (5461 slots) master
0 additional replica(s)
S: 2cec8ac00f760c45d86f7903cefad85ec36704e7 192.168.41.102:7002
slots: (0 slots) slave
replicates 923c9ea13ec8fc19bed309dfbfad094320e1ca41
S: e65b319e83997ed6f5323a26aaccba3f35522cbd 192.168.41.101:7002
slots: (0 slots) slave
replicates 923c9ea13ec8fc19bed309dfbfad094320e1ca41
M: 5c0888d5bcceda2904311cbd5405596217c48105 192.168.41.102:7000
slots:10922-16383 (5462 slots) master
0 additional replica(s)
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.
把101:7001和102:7000两个master的slots转移到101:7000上
./redis-trib.rb reshard --from 5c0888d5bcceda2904311cbd5405596217c48105 --to 923c9ea13ec8fc19bed309dfbfad094320e1ca41 --slots 5462 --yes 192.168.41.101:7000
./redis-trib.rb reshard --from 48629733acbb8a580a39403dfac92845d63c97b3 --to 923c9ea13ec8fc19bed309dfbfad094320e1ca41 --slots 5461 --yes 192.168.41.101:7000
查看转以后槽点分配
>>> Performing Cluster Check (using node 192.168.41.101:7000)
M: 923c9ea13ec8fc19bed309dfbfad094320e1ca41 192.168.41.101:7000
slots:0-16383 (16384 slots) master
3 additional replica(s)
S: ab6d9f956de325cb4cf001abc31df365a5db5234 192.168.41.102:7001
slots: (0 slots) slave
replicates 923c9ea13ec8fc19bed309dfbfad094320e1ca41
M: 48629733acbb8a580a39403dfac92845d63c97b3 192.168.41.101:7001
slots: (0 slots) master
0 additional replica(s)
S: 2cec8ac00f760c45d86f7903cefad85ec36704e7 192.168.41.102:7002
slots: (0 slots) slave
replicates 923c9ea13ec8fc19bed309dfbfad094320e1ca41
S: e65b319e83997ed6f5323a26aaccba3f35522cbd 192.168.41.101:7002
slots: (0 slots) slave
replicates 923c9ea13ec8fc19bed309dfbfad094320e1ca41
M: 5c0888d5bcceda2904311cbd5405596217c48105 192.168.41.102:7000
slots: (0 slots) master
0 additional replica(s)
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.
把192.168.41.101:6379的appendonly.aof 文件复制到101:7000的aof文件目录下
cp 6379目录/appendonly.aof 7000目录
重启101:7000节点加载aof文件
[root@blaze bin]# ./redis-cli -c -p 7000 shutdown
[root@blaze bin]# ./redis-server ../redis.conf
查看数据是否正确
dbsize
将101:7000的槽 均匀分配给其他两个master节点
./redis-trib.rb reshard --from 923c9ea13ec8fc19bed309dfbfad094320e1ca41 --to 5c0888d5bcceda2904311cbd5405596217c48105 --slots 5462 --yes 192.168.41.101:7000
./redis-trib.rb reshard --from 923c9ea13ec8fc19bed309dfbfad094320e1ca41 --to 48629733acbb8a580a39403dfac92845d63c97b3 --slots 5461 --yes 192.168.41.101:7000
再次查看集群状态和槽分配。
原文地址:https://www.cnblogs.com/blazeZzz/p/11007977.html
- web中的水晶报表 "出现通信错误。将停止打印"
- nginx反向代理中proxy_set_header 运维笔记
- 期待已久的直播能力开放了!年底之前来波大的
- 两个目录中,删除其中一个目录中同名文件的做法
- linux下监控某个目录是否被更改
- centos下升级git版本的操作记录
- linux下core file size设置笔记
- linux下文件加密操作记录
- python的with语句,超级强大
- “AS3.0高级动画编程”学习:第二章转向行为(上)
- Linux下性能调试工具-top和sar运维笔记
- Apache+wsgi+flask部署
- “勒索病毒”到底会勒索啥,尽可以做到让全球对之恐惧无奈!
- 解决win10 关键错误开始菜单和cortana无法工作 的问题(转-真的成功了)
- JavaScript 教程
- JavaScript 编辑工具
- JavaScript 与HTML
- JavaScript 与Java
- JavaScript 数据结构
- JavaScript 基本数据类型
- JavaScript 特殊数据类型
- JavaScript 运算符
- JavaScript typeof 运算符
- JavaScript 表达式
- JavaScript 类型转换
- JavaScript 基本语法
- JavaScript 注释
- Javascript 基本处理流程
- Javascript 选择结构
- Javascript if 语句
- Javascript if 语句的嵌套
- Javascript switch 语句
- Javascript 循环结构
- Javascript 循环结构实例
- Javascript 跳转语句
- Javascript 控制语句总结
- Javascript 函数介绍
- Javascript 函数的定义
- Javascript 函数调用
- Javascript 几种特殊的函数
- JavaScript 内置函数简介
- Javascript eval() 函数
- Javascript isFinite() 函数
- Javascript isNaN() 函数
- parseInt() 与 parseFloat()
- escape() 与 unescape()
- Javascript 字符串介绍
- Javascript length属性
- javascript 字符串函数
- Javascript 日期对象简介
- Javascript 日期对象用途
- Date 对象属性和方法
- Javascript 数组是什么
- Javascript 创建数组
- Javascript 数组赋值与取值
- Javascript 数组属性和方法