111 lines
2.5 KiB
Markdown
111 lines
2.5 KiB
Markdown
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# 新疆联通环境 nezha21.11版本 同一图表不同时间展示数据情况矛盾
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| ID | Creation Date | Assignee | Status |
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|----|----------------|----------|--------|
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| OMPUB-284 | 2021-11-30T17:02:42.000+0800 | 贾依蒙 | 已关闭 |
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---
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联通XJ-Log-Middleware页面 JC-Log-Send图表，选取不同时间周期，图表展示数据情况不一致；
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promQL：jcSendFail jcOutputLog jcInputLog
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如图示：最近1h，最近12h，最近24h
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选取1h图表和选取12h图表显示有数据，选取24h图表数据变为0,12h和24h数据展示结果互相矛盾。
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多次选择24h，会出现正常情况如图3，也会出现为0的情况如图4
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选择XJ-Log-Middleware页面，有时会出现无任何显示的情况，如图5**fangshunjian** commented on *2021-11-30T17:17:32.354+0800*:
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图片3 模糊，麻烦更新下 [~jiayimeng]
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---
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**jiayimeng** commented on *2021-11-30T17:50:50.388+0800*:
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图片已更新
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---
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**fangshunjian** commented on *2021-12-01T10:47:59.532+0800*:
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请检查 jcSendFail jcOutputLog jcInputLog 数据类型
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---
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**jiayimeng** commented on *2021-12-01T11:13:02.454+0800*:
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三个指标均为gauge类型
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---
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**fangshunjian** commented on *2021-12-01T11:53:59.316+0800*:
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prometheus在查询时，可以根据step 设置查询精度，step 越大，精度越差，返回的数据总量越少。即返回结果每个 数据点的 时间间隔。
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nezha 为了保证 浏览器 和 prometheus 性能，随着时间范围越长，也随之 设置更大的step
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* 小于1天 ：15秒
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* 小于7天 ： 5分钟
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* 小于30天：10分钟
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* 大于等于30天：30分钟
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另外prometheus 结果返回精度也和 scrape interval，promql（range-vector）相关
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更多资料：
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* 1、metric 数据类型 [https://prometheus.io/docs/concepts/metric_types/]
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* 2、[https://prometheus.io/docs/prometheus/latest/querying/api/#range-queries]
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* 3、[https://github.com/prometheus/prometheus/issues/2564]
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建议:
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方案1：修改 jcSendFail 等数据类型为 counter，通irate 或 rate 函数计算 平均速率
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方案2： 保持当前数据类型，使用 统计函数 计算 [https://prometheus.io/docs/prometheus/latest/querying/operators/#aggregation-operators]
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---
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**fangshunjian** commented on *2021-12-01T13:44:27.131+0800*:
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图5 bug已在 nezha-21.11.19-Release.x86_64.rpm 中修改，可更新nezha 程序解决
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---
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## Attachments
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**23174/图3.png**
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---
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**23178/图4.png**
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---
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**23175/图5.png**
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---
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**23166/图片1.png**
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---
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**23165/图片2.png**
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---
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