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| title: TiCDC 部署拓扑 | ||
| summary: 介绍 TiCDC 部署 TiDB 集群的拓扑结构。 | ||
| category: how-to | ||
| --- | ||
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| # TiCDC 部署拓扑 | ||
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| 本文介绍 TiCDC 部署的拓扑,以及如何在最小拓扑的基础上同时部署 TiCDC。TiCDC 是 4.0 版本开始支持的 TiDB 增量数据同步工具,支持多种下游 (TiDB/MySQL/MQ)。相比于 TiDB Binlog,TiCDC 有延迟更低、天然高可用等优点。 | ||
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| ## 拓扑信息 | ||
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| |实例 | 个数 | 物理机配置 | IP |配置 | | ||
| | :-- | :-- | :-- | :-- | :-- | | ||
| | TiDB |3 | 16 VCore 32GB * 1 | 10.0.1.1 <br> 10.0.1.2 <br> 10.0.1.3 | 默认端口 <br> 全局目录配置 | | ||
| | PD | 3 | 4 VCore 8GB * 1 |10.0.1.4 <br> 10.0.1.5 <br> 10.0.1.6 | 默认端口 <br> 全局目录配置 | | ||
| | TiKV | 3 | 16 VCore 32GB 2TB (nvme ssd) * 1 | 10.0.1.7 <br> 10.0.1.8 <br> 10.0.1.9 | 默认端口 <br> 全局目录配置 | | ||
| | CDC | 3 | 8 VCore 16GB * 1 | 10.0.1.11 <br> 10.0.1.12 <br> 10.0.1.13 | 默认端口 <br> 全局目录配置 | | ||
| | Monitoring & Grafana | 1 | 4 VCore 8GB * 1 500GB (ssd) | 10.0.1.11 | 默认端口 <br> 全局目录配置 | | ||
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| ## 通过 TiUP 部署集群的配置文件模版 topology.yaml | ||
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| ### 部署目标 | ||
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| 通过 `tidb` 用户做集群管理,部署 3 个节点的 TiCDC 集群,使用默认 `22` 端口,部署目录为 `/tidb-deploy`,数据目录为 `/tidb-data`。 | ||
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| ### 拓扑模版 | ||
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| [简单 TiCDC 配置模板](/config-templates/simple-cdc.yaml) | ||
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| [详细 TiCDC 配置模板](/config-templates/complex-cdc.yaml) | ||
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| > **注意:** | ||
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| > - 无需手动创建配置文件中的 `tidb` 用户,TiUP cluster 组件会在部署主机上自动创建该用户。可以自定义用户,也可以和中控机的用户保持一致。 | ||
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