2025-09-14 21:52:36 +00:00
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# 新疆移动 哪吒Session Records图表数据显示异常
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| ID | Creation Date | Assignee | Status |
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|----|----------------|----------|--------|
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| OMPUB-786 | 2023-01-31T17:14:36.000+0800 | 方顺健 | 已解决 |
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---
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环境:XJ-移动 哪吒
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版本: 22.02版本
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问题描述:查看Data Flow页面Session Records图表,发现选取不同时间范围,同一时间点的数值就会不同;如下图所示以2023.01.24 23:30时间点为例,选取最近7天,最近30天,和输入时间范围的数值均不相同,且差异较大;**fangshunjian** commented on *2023-01-31T18:13:05.546+0800*:
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NZ根据查询的不同时间范围自动计算 step ,规则如下:
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* 0 < interval < 24h, step = 15s
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* 24h <= interval < 7days, step = 5min
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* 7days <= interval < 30days ,step = 10min
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* 30days <= interval , step = 30min
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prometheus sum函数计算步骤:
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* 根据step 抽样计算点
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* 相同时间计算点数据求和
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结论:
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* 不同时间范围 或 相同时间范围起始时间不一样 sum统计结果不一致,属正常现象
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* 可以考虑使用 sum_over_time() 函数统计一段时间内求和
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[https://segmentfault.com/a/1190000017553625]
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https://prometheus.io/docs/prometheus/latest/querying/operators/
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https://zhuanlan.zhihu.com/p/295463393
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[https://www.youtube.com/watch?v=67Ulrq6DxwA&t=1826s]
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---
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2025-09-14 22:26:17 +00:00
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# Attachments
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2025-09-14 21:52:36 +00:00
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2025-09-14 22:26:17 +00:00
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Attachment: 24日当天.png
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2025-09-14 22:27:11 +00:00
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2025-09-14 22:26:17 +00:00
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2025-09-14 21:52:36 +00:00
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2025-09-14 22:26:17 +00:00
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Attachment: 输入选择最近7天.png
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2025-09-14 22:27:11 +00:00
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2025-09-14 22:26:17 +00:00
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2025-09-14 21:52:36 +00:00
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2025-09-14 22:26:17 +00:00
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Attachment: 最近30天.png
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2025-09-14 22:27:11 +00:00
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2025-09-14 22:26:17 +00:00
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Attachment: 最近7天.png
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2025-09-14 22:27:11 +00:00
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2025-09-14 22:26:17 +00:00
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2025-09-14 21:52:36 +00:00
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