disable switch to import mode for global sort, and add tikv-worker-url config #20675
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[APPROVALNOTIFIER] This PR is NOT APPROVED This pull-request has been approved by: The full list of commands accepted by this bot can be found here.
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Jul 18, 2025
| @@ -145,7 +145,7 @@ SET 表达式左侧只能引用 `ColumnNameOrUserVarList` 中没有的列名。 | |||
| | `SKIP_ROWS=<number>` | CSV | 指定需要跳过的行数，默认为 `0`。可通过该参数跳过 CSV 中的 header，如果是通过通配符来指定所需导入的源文件，该参数会对 fileLocation 中通配符匹配的所有源文件生效。 | | |||
| | `SPLIT_FILE` | CSV | 将单个 CSV 文件拆分为多个 256 MiB 左右的小文件块进行并行处理，以提高导入效率。该参数仅对**非**压缩的 CSV 文件生效，且该参数和 TiDB Lightning 的 [`strict-format`](/tidb-lightning/tidb-lightning-data-source.md#启用严格格式) 有相同的使用限制。注意，你需要为该选项显式指定 `LINES_TERMINATED_BY`。| | |||
| | `DISK_QUOTA='<string>'` | 所有文件格式 | 指定数据排序期间可使用的磁盘空间阈值。默认值为 TiDB [临时目录](/tidb-configuration-file.md#temp-dir-从-v630-版本开始引入)所在磁盘空间的 80%。如果无法获取磁盘总大小，默认值为 50 GiB。当显式指定 `DISK_QUOTA` 时，该值同样不能超过 TiDB [临时目录](/tidb-configuration-file.md#temp-dir-从-v630-版本开始引入)所在磁盘空间的 80%。 | | |||
| | `DISABLE_TIKV_IMPORT_MODE` | 所有文件格式 | 指定是否禁止导入期间将 TiKV 切换到导入模式。默认不禁止。如果当前集群存在正在运行的读写业务，为避免导入过程对这部分业务造成影响，可开启该参数。 | | |||
| | `DISABLE_TIKV_IMPORT_MODE` | 所有文件格式 | 指定是否禁止导入期间将 TiKV 切换到导入模式。默认不禁止。如果当前集群存在正在运行的读写业务，为避免导入过程对这部分业务造成影响，可开启该参数。从 v9.0.0 版本开始，使用全局排序功能导入数据时，TiKV 默认不会切换到导入模式。 | | |||
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相当于从 v9.0.0 版本开始，默认禁止导入期间将 TiKV 切换到导入模式吗
qiancai
approved these changes
Jul 18, 2025
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| > **警告：** | ||
| > | ||
| > 此配置项目前未被使用，可能会在未事先通知的情况下发生变化或删除。 |
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| > 此配置项目前未被使用，可能会在未事先通知的情况下发生变化或删除。 | |
| > 当前版本中该配置项控制的功能尚未完全生效，可能会在未事先通知的情况下发生变化或删除。 |
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“目前未被使用” 有些歧义，可能可以参考 https://docs.pingcap.com/zh/tidb/dev/system-variables/ 里一些警告的写法
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