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update sort_buffer_size_in_bytes default is 0 from v136 #924

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Merged
CritasWang merged 1 commit into from
Dec 26, 2025
Merged

update sort_buffer_size_in_bytes default is 0 from v136 #924

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11 changes: 11 additions & 0 deletions src/UserGuide/V1.3.x/Reference/Common-Config-Manual.md
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Expand Up @@ -636,6 +636,17 @@ Different configuration parameters take effect in the following three ways:
|Default| 100000 |
|Effective|After restarting system|

* sort\_buffer\_size\_in\_bytes

|Name| sort\_buffer\_size\_in\_bytes |
|:---:|:----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|Description| Sort buffer size, in bytes. |
|Type| Long |
|Default| Before V1.3.6: 1048576 (equivalent to 1MB);<br> From V1.3.6 onwards (including all V1.x versions): 0.The memory rule for external sort in the sort operator is as follows: When the data size is smaller than the sort buffer size (sort_buffer_size_in_bytes, in bytes), the sort operator will use in-memory sort. If sort_buffer_size_in_bytes ≤ 0, the default value is used. The default value is calculated as the minimum of 32MB and (memory for query operators / query_thread_count / 2). If sort_buffer_size_in_bytes > 0, the specified value is used. |
|Effective| Hot Reload |



### TTL Configuration
* ttl\_check\_interval

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10 changes: 10 additions & 0 deletions src/UserGuide/dev-1.3/Reference/Common-Config-Manual.md
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Original file line number Diff line number Diff line change
Expand Up @@ -636,6 +636,16 @@ Different configuration parameters take effect in the following three ways:
|Default| 100000 |
|Effective|After restarting system|

* sort\_buffer\_size\_in\_bytes

|Name| sort\_buffer\_size\_in\_bytes |
|:---:|:----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|Description| Sort buffer size, in bytes. |
|Type| Long |
|Default| Before V1.3.6: 1048576 (equivalent to 1MB);<br> From V1.3.6 onwards (including all V1.x versions): 0.The memory rule for external sort in the sort operator is as follows: When the data size is smaller than the sort buffer size (sort_buffer_size_in_bytes, in bytes), the sort operator will use in-memory sort. If sort_buffer_size_in_bytes ≤ 0, the default value is used. The default value is calculated as the minimum of 32MB and (memory for query operators / query_thread_count / 2). If sort_buffer_size_in_bytes > 0, the specified value is used. |
|Effective| Hot Reload |


### TTL Configuration
* ttl\_check\_interval

Expand Down
10 changes: 10 additions & 0 deletions src/zh/UserGuide/V1.3.x/Reference/Common-Config-Manual.md
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Original file line number Diff line number Diff line change
Expand Up @@ -666,6 +666,16 @@ IoTDB ConfigNode 和 DataNode 的公共配置参数位于 `conf` 目录下。
|默认值| 100000 |
|改后生效方式|重启生效|

* sort\_buffer\_size\_in\_bytes

|名字| sort\_buffer\_size\_in\_bytes |
|:---:|:----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|描述| 排序缓冲区大小，单位为字节 |
|类型| Long |
|默认值| V 1.3.6 之前 ：默认值为 1048576 ；<br>V 1.3.6 及后续 V 1.x 系列：默认值为 0 。排序算子中用于外部排序的内存规则如下：当数据量小于排序缓冲区大小（sort_buffer_size_in_bytes，单位为字节）时，排序算子将采用内存排序方式。若sort_buffer_size_in_bytes的取值小于等于0，则使用默认值；默认值的计算方式为：取32MB与（查询算子可用内存 / 查询线程数 / 2）二者中的较小值。 若sort_buffer_size_in_bytes的取值大于0，则使用该配置的指定值。 |
|改后生效方式| 热加载 |


#### TTL 配置
* ttl\_check\_interval

Expand Down
10 changes: 10 additions & 0 deletions src/zh/UserGuide/dev-1.3/Reference/Common-Config-Manual.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -666,6 +666,16 @@ IoTDB ConfigNode 和 DataNode 的公共配置参数位于 `conf` 目录下。
|默认值| 100000 |
|改后生效方式|重启生效|

* sort\_buffer\_size\_in\_bytes

|名字| sort\_buffer\_size\_in\_bytes |
|:---:|:----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|描述| 排序缓冲区大小，单位为字节 |
|类型| Long |
|默认值| V 1.3.6 之前 ：默认值为 1048576 ；<br>V 1.3.6 及后续 V 1.x 系列：默认值为 0 。排序算子中用于外部排序的内存规则如下：当数据量小于排序缓冲区大小（sort_buffer_size_in_bytes，单位为字节）时，排序算子将采用内存排序方式。若sort_buffer_size_in_bytes的取值小于等于0，则使用默认值；默认值的计算方式为：取32MB与（查询算子可用内存 / 查询线程数 / 2）二者中的较小值。 若sort_buffer_size_in_bytes的取值大于0，则使用该配置的指定值。 |
|改后生效方式| 热加载 |


#### TTL 配置
* ttl\_check\_interval

Expand Down