ticdc: add description about ticdc new architecture #19765
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Co-authored-by: Flowyi <[email protected]>
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@wlwilliamx: adding LGTM is restricted to approvers and reviewers in OWNERS files. In response to this:
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Co-authored-by: wlwilliamx <[email protected]>
Co-authored-by: wlwilliamx <[email protected]>
…ocs-cn into ldz/add-ticdc-new-arch
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| 1. 如果你的 TiDB 集群中尚无 TiCDC 节点，参考[扩容 TiCDC 节点](/scale-tidb-using-tiup.md#扩容-ticdc-节点)在集群中扩容新的 TiCDC 节点，否则跳过该步骤。 | ||
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| 2. 如果你的 TiDB 集群为 v9.0.0 之前版本，需要按照以下方式手动下载 v9.0.0 或以上版本的 TiCDC 离线包，并将下载的 TiCDC 二进制文件 Patch 到你的 TiDB 集群，否则跳过该步骤。 |
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| 2. 如果你的 TiDB 集群为 v9.0.0 之前版本，需要按照以下方式手动下载 v9.0.0 或以上版本的 TiCDC 离线包，并将下载的 TiCDC 二进制文件 Patch 到你的 TiDB 集群，否则跳过该步骤。 | |
| 2. 如果你的 TiDB 集群为 v9.0.0 之前版本，需要按照以下方式手动下载 v9.0.0 或以上版本的 TiCDC 离线包，并将下载的 TiCDC 二进制文件动态替换到你的 TiDB 集群，否则跳过该步骤。 |
| wget https://tiup-mirrors.pingcap.com/cdc-v9.0.0-linux-amd64.tar.gz | ||
| ``` | ||
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| 2. 将下载的 TiCDC 二进制文件 Patch 到你的 TiDB 集群中： |
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| 2. 将下载的 TiCDC 二进制文件 Patch 到你的 TiDB 集群中： | |
| 2. 使用 [`tiup cluster patch`](/tiup/tiup-component-cluster-patch.md) 命令将下载的 TiCDC 二进制文件动态替换到你的 TiDB 集群中： |
Co-authored-by: Aolin <[email protected]>
Co-authored-by: Aolin <[email protected]>
Co-authored-by: Aolin <[email protected]>
| - **更高的单节点性能**：单节点最高可支持 50 万张表的同步任务，宽表场景下的同步流量最高可达 200 MiB/s。 | ||
| - **更强的扩展能力**：集群同步能力接近线性扩展，单集群可扩展至超过 100 个节点，支持超 1 万个 Changefeed；单个 Changefeed 可支持百万级表的同步任务。 | ||
| - **更高的稳定性**：在高流量、频繁 DDL 操作及集群扩缩容等场景下，Changefeed 的延迟更低且更加稳定。通过资源隔离和优先级调度，减少了多个 Changefeed 任务之间的相互干扰。 | ||
| - **更低的资源成本**：通过改进资源利用率，减少冗余开销。在典型场景下，CPU 和内存等资源的利用效率提升高达一个数量级。 |
| 例如，可以使用以下命令下载 Linux 系统 x86-64 架构的 TiCDC v9.0.0 的二进制文件： | ||
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| ```shell | ||
| wget https://tiup-mirrors.pingcap.com/cdc-v9.0.0-linux-amd64.tar.gz |
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This link does not work for now. As this doc will be displayed only in the dev version, is it okay?
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