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@@ -6,17 +6,17 @@ tags: ["mysql", "group", "replication", "组复制"]
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categories: ["database"]
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---
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# 环境
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## 环境
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hostname | ip | os | mysql
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---- | ---- | ---- | ----
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mysql_11 | 192.168.1.11 | centos7.7 | 8.0.19
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mysql_22 | 192.168.1.22 | centos7.7 | 8.0.19
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mysql_33 | 192.168.1.33 | centos7.7 | 8.0.19
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# 安装 mysql
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## 安装 mysql
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- 懒得写了 ...
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# 修改 my.cnf
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## 修改 my.cnf
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```
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# mysql_11(选择一个)
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server-id = 11
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@@ -78,7 +78,7 @@ mysql_33 | 192.168.1.33 | centos7.7 | 8.0.19
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group-replication-exit-state-action = OFFLINE_MODE
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```
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# 初始化集群
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## 初始化集群
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- 重新启动节点 mysql_11
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```bash
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systemctl restart mysqld
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@@ -116,7 +116,7 @@ mysql_33 | 192.168.1.33 | centos7.7 | 8.0.19
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- 修改 my.cnf,配置 group-replication-start-on-boot = ON
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# 增加节点
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## 增加节点
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- 重新启动节点 mysql_22
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```bash
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systemctl restart mysql_22
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@@ -153,6 +153,6 @@ mysql_33 | 192.168.1.33 | centos7.7 | 8.0.19
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- 修改 mysql_22 和 mysql_33 的 my.cnf,配置 group-replication-start-on-boot = ON
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# 注意
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## 注意
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- 每张表都必须显式指定主键
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