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v7.5.5: introduce tidb_ddl_reorg_max_write_speed (#19282) (#19425) (#…
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ti-chi-bot authored Dec 31, 2024
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Expand Up @@ -228,7 +228,7 @@ TiDB 8.5.0 为长期支持版本 (Long-Term Support Release, LTS)。
| 变量名 | 修改类型 | 描述 |
|--------|------------------------------|------|
| [`tidb_enable_fast_create_table`](/system-variables.md#tidb_enable_fast_create_table-从-v800-版本开始引入) | 修改 | 经进一步的测试后,默认值从 `OFF` 修改为 `ON`,即默认开启 [TiDB 加速建表](/accelerated-table-creation.md)|
| [`tidb_ddl_reorg_max_write_speed`](/system-variables.md#tidb_ddl_reorg_max_write_speed-从-v850-版本开始引入) | 新增 | 限制每个 TiKV 节点写入的带宽,仅在开启添加索引加速功能时生效(由变量 [`tidb_ddl_enable_fast_reorg`](/system-variables.md#tidb_ddl_enable_fast_reorg-从-v630-版本开始引入) 控制)。例如,当该值设置为 `200MiB` 时,最大写入速度限制为 200 MiB/s。 |
| [`tidb_ddl_reorg_max_write_speed`](/system-variables.md#tidb_ddl_reorg_max_write_speed-从-v755-和-v850-版本开始引入) | 新增 | 限制每个 TiKV 节点写入的带宽,仅在开启添加索引加速功能时生效(由变量 [`tidb_ddl_enable_fast_reorg`](/system-variables.md#tidb_ddl_enable_fast_reorg-从-v630-版本开始引入) 控制)。例如,当该值设置为 `200MiB` 时,最大写入速度限制为 200 MiB/s。 |

### 配置参数

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