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parallel_fragment_exec_instance_num和parallel_pipeline_task_num这两个配置的区别?

Asked Jan 14, 2025 Modified Jan 1, 0001
Viewed 64
2.0

版本:2.0.12

parallel_fragment_exec_instance_num的默认值为1,parallel_pipeline_task_num默认值为0。
这两个配置项有什么区别?设置成多少比较合适?

image.png

edited Jan 1, 0001
yugunsung117
asked Jan 14, 2025
1 Answers

在pipeline 没出来前手动调整并发:parallel_fragment_exec_instance_num

pipeline 出来后 parallel_pipeline_task_num 调整并发。

parallel_pipeline_task_num = 0 并发为 cpu 核数的一半。

edited Jan 1, 1970
阿渊@SelectDB (没回帖直接加我主页微信)9495
answered Jan 14, 2025
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