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*: fix the default value of cdc.min-ts-interval (#18677) #18678

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Sep 20, 2024
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*: fix the default value of cdc.min-ts-interval (#18677) #18678

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lilin90 Sep 20, 2024
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lilin90 Sep 20, 2024
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lilin90 Sep 20, 2024
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2 changes: 1 addition & 1 deletion releases/release-6.5.0.md
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Expand Up @@ -355,7 +355,7 @@ TiDB 6.5.0 为长期支持版本 (Long-Term Support Release, LTS)。
| TiDB | [`server-memory-quota`](/tidb-configuration-file.md#server-memory-quota-从-v409-版本开始引入) | 废弃 | 自 v6.5.0 起，该配置项被废弃。请使用 [`tidb_server_memory_limit`](/system-variables.md#tidb_server_memory_limit-从-v640-版本开始引入) 系统变量进行设置。 |
| TiDB | [`disconnect-on-expired-password`](/tidb-configuration-file.md#disconnect-on-expired-password-从-v650-版本开始引入) | 新增 | 该配置用于控制 TiDB 服务端是否直接断开密码已过期用户的连接，默认值为 `true`，表示 TiDB 服务端将直接断开密码已过期用户的连接。 |
| TiKV | `raw-min-ts-outlier-threshold` | 删除 | 从 v6.4.0 起，该配置项被废弃。从 v6.5.0 起，该配置项被删除。 |
| TiKV | [`cdc.min-ts-interval`](/tikv-configuration-file.md#min-ts-interval) | 修改 | 为了降低 CDC 延迟，该配置的默认值从 `1s` 修改为 `200ms`。 |
| TiKV | [`cdc.min-ts-interval`](/tikv-configuration-file.md#min-ts-interval) | 修改 | 为了降低 CDC 延迟，该配置的默认值从 `"1s"` 修改为 `"200ms"`。 |
| TiKV | [`memory-use-ratio`](/tikv-configuration-file.md#memory-use-ratio-从-v650-版本开始引入) | 新增 | 表示 PITR 日志恢复功能中可用内存与系统总内存的占比。 |
| TiCDC | [`sink.terminator`](/ticdc/ticdc-changefeed-config.md#ticdc-changefeed-配置文件说明) | 新增 | 换行符，用来分隔两个数据变更事件。默认值为空，表示使用 `\r\n` 作为换行符。 |
| TiCDC | [`sink.date-separator`](/ticdc/ticdc-changefeed-config.md#ticdc-changefeed-配置文件说明) | 新增 | 文件路径的日期分隔类型。可选类型有 `none`、`year`、`month`、`day`。默认值为 `none`，即不使用日期分隔。|
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2 changes: 2 additions & 0 deletions releases/release-6.5.1.md
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Expand Up @@ -25,6 +25,8 @@ TiDB 版本：6.5.1

- TiKV 配置项 [`advance-ts-interval`](/tikv-configuration-file.md#advance-ts-interval) 默认值由 `1s` 修改为 `20s`。你可以通过调整该配置项提高 Stale Read 数据的时效性（即减少延时），详情参见[减少 Stale Read 延时](/stale-read.md#减少-stale-read-延时)。

- TiKV 配置项 [`cdc.min-ts-interval`](/tikv-configuration-file.md#min-ts-interval) 的默认值由 `"200ms"` 修改为 `"1s"`，以减少网络流量。

## 改进提升

+ TiDB
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6 changes: 5 additions & 1 deletion tikv-configuration-file.md
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Expand Up @@ -2062,7 +2062,11 @@ Raft Engine 相关的配置项。
### `min-ts-interval`

+ 定期推进 Resolved TS 的时间间隔。
+ 默认值：200ms
+ 默认值：`"1s"`

> **注意：**
>
> 在 v6.5.0 中，`min-ts-interval` 的默认值从 `"1s"` 更改为 `"200ms"`，以减少 CDC 的延迟。从 v6.5.1 开始，该默认值更改回 `"1s"`，以减少网络流量。

### `old-value-cache-memory-quota`

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