Re: [I] [Question] 自定义prometheus指标监控的阈值规则对复杂PromQL支持有问题 [hertzbeat]</span></a></span> </h1> <p class="darkgray font13"> <span class="sender pipe"><a href="/search?l=notifications@hertzbeat.apache.org&q=from:%22via+GitHub%22" rel="nofollow"><span itemprop="author" itemscope itemtype="http://schema.org/Person"><span itemprop="name">via GitHub</span></span></a></span> <span class="date"><a href="/search?l=notifications@hertzbeat.apache.org&q=date:20250611" rel="nofollow">Wed, 11 Jun 2025 23:18:10 -0700</a></span> </p> </div> <div itemprop="articleBody" class="msgBody"> <!--X-Body-of-Message--> <pre> zhengxin12345 commented on issue #3458: URL: <a rel="nofollow" href="https://github.com/apache/hertzbeat/issues/3458#issuecomment-2964971994">https://github.com/apache/hertzbeat/issues/3458#issuecomment-2964971994</a></pre><pre> > ### Question > ![Image](<a rel="nofollow" href="https://github.com/user-attachments/assets/4bb930d3-eca7-49ee-9775-6c0dbc746a28">https://github.com/user-attachments/assets/4bb930d3-eca7-49ee-9775-6c0dbc746a28</a>) > > 如上图，我对prometheus的2个指标进行阈值监控，其中第一个指标为count类型，所以我采用了increase函数(prometheuus的内置函数)，结果发现告警不成功，修改源码打印一些日志，发现表达式在查询的时候，被截断了，只来到了increase这里，后面就没有了： > > ![Image](<a rel="nofollow" href="https://github.com/user-attachments/assets/0d90f6f6-b648-4576-9966-415f138040b2">https://github.com/user-attachments/assets/0d90f6f6-b648-4576-9966-415f138040b2</a>) 如果把图中的两个条件顺序调换，那么会打印2个查询条件，第一个正常，第二个也是到increase这里被截断 ``` go_memory_classes_heap_stacks_bytes{instance="520099151619840"} > 3 and (increase(go_gc_duration_seconds_count{instance="520099151619840"}[5m]) <5) ``` 打印： ![Image](<a rel="nofollow" href="https://github.com/user-attachments/assets/d737702e-efc0-48ea-9084-7636a323fbfa">https://github.com/user-attachments/assets/d737702e-efc0-48ea-9084-7636a323fbfa</a>) -- This is an automated message from the Apache Git Service. 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