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第一次查询很慢,之后查询为毫秒,如何优化

Asked Feb 26 Modified Jan 1, 0001
Viewed 63
2.1

目前了解到的是第一次查询时,数据会从源获取并缓存起来,之后的查询会直接从内存中读取,因此速度会大大提升。
有什么优化方案吗

edited Jan 1, 0001
一只小蜜蜂15
asked Feb 26
1 Answers

大部分SQL任务都是这种情况?Cache优化当前能满足应用场景不;
可以对比下快和慢的profile,确定下差异点:https://doris.apache.org/zh-CN/docs/query-acceleration/performance-tuning-overview/analysis-tools

edited Jan 1, 1970
张彬华7678
answered Feb 26
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