On 2020-07-15 19:17, Jhih Cheng Luo wrote:
I am also curious about this behavior. Can anyone explain this case in more detail? I appreciate it! Since the time series data 'x' only has the values between 0m to 2m, why the alert is still fired between 3m to 7m? Thank! Tashfia Rahman於 2020年6月9日星期二 UTC+8下午9時57分19秒寫道：
When a query is made for a value of a timeseries at a particular point it is very unlikely that there is an entry at that exact timestamp. By default Prometheus will look back by up to 5 minutes to find a value.
Hi all, I'm using Promtool for unit testing alert rules, and I'm having trouble understanding the behavior for unspecific input_series values. For example, say I have an alert rule that fires for the expression x == 5. - alert: test_alert expr: x == 5 labels: severity: page annotations: description: "x is {{ $value }}" summary: "x is {{ $value }}" When I run this test with my input_series values '5 5 5' I'm only specifying input values for minutes 0, 1, and 2. - interval: 1m input_series: - series: 'x' values: '5 5 5' alert_rule_test: - eval_time: 7m alertname: test_alert exp_alerts: - exp_labels: severity: page exp_annotations: description: "x is 5" summary: "x is 5" As expected, the alert fires for eval_time 0m through 2m. However, the alert still fires when I make the eval_time anywhere from 3m through 7m, but then fails with 8m and later. I'm not sure why 3-7 work and then at 8 it stops working. I've tried some other scenarios and can't find a pattern for when unspecified values do/don't work. I'm not sure if I am misinterpreting something here, so any help would be greatly appreciated. Thanks in advance!-- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/9a4e4b21-730b-4f10-ab83-2f856649218fo%40googlegroups.com [1]. Links: ------ [1] https://groups.google.com/d/msgid/prometheus-users/9a4e4b21-730b-4f10-ab83-2f856649218fo%40googlegroups.com?utm_medium=email&utm_source=footer
-- Stuart Clark -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/592d68c990eb94546f03b0b2166a5438%40Jahingo.com.
