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Update tiflash-configuration.md (#18555) #18573

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Sep 9, 2024
Merged

Update tiflash-configuration.md (#18555) #18573

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Update tiflash-configuration.md
jinshayumi Sep 6, 2024
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Update tiflash/tiflash-configuration.md
jinshayumi Sep 6, 2024
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Update tiflash-configuration.md
jinshayumi Sep 6, 2024
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Update tiflash/tiflash-configuration.md
hfxsd Sep 9, 2024
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lilin90 Sep 9, 2024
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4 changes: 4 additions & 0 deletions tiflash/tiflash-configuration.md
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Expand Up @@ -188,6 +188,10 @@ delta_index_cache_size = 0
## 在 v6.2.0 以及后续版本，强烈建议保留默认值 `false`，不要将其修改为 `true`。具体请参考已知问题 [#5576](https://github.com/pingcap/tiflash/issues/5576)。
# dt_enable_logical_split = false

## `max_threads` 指的是执行一个 MMP Task 的内部线程并发度，默认值为 0。当值为 0 时，TiFlash 执行 MMP Task 的线程并发度为 CPU 核数。
## 该参数只有在系统变量 `tidb_max_tiflash_threads` 设置为 -1 时才会生效。
max_threads = 0

## 单次查询过程中，节点对中间数据的内存限制
## 设置为整数时，单位为 byte，比如 34359738368 表示 32 GiB 的内存限制，0 表示无限制
## 设置为 [0.0, 1.0) 之间的浮点数时，指节点总内存的比值，比如 0.8 表示总内存的 80%，0.0 表示无限制
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