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Explain tidb_max_tiflash_threads default value -1 means (#16149) #16358

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Jan 25, 2024
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Explain tidb_max_tiflash_threads default value -1 means (#16149) #16358

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This is an automated cherry-pick of #16149
llkdd1 Jan 25, 2024
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Oreoxmt Jan 25, 2024
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4 changes: 3 additions & 1 deletion system-variables.md
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Expand Up @@ -2285,9 +2285,11 @@ Query OK, 0 rows affected, 1 warning (0.00 sec)

- 作用域：SESSION | GLOBAL
- 是否持久化到集群：是
- 类型：整数型
- 默认值：`-1`
- 范围：`[-1, 256]`
- TiFlash 中 request 执行的最大并发度。默认值为 -1，表示该系统变量无效。0 表示由 TiFlash 系统自动设置该值。
- 单位：线程
- TiFlash 中 request 执行的最大并发度。默认值为 `-1`，表示该系统变量无效，此时最大并发度取决于 TiFlash 配置项 `profiles.default.max_threads` 的设置。`0` 表示由 TiFlash 系统自动设置该值。

### `tidb_mpp_store_fail_ttl`

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