Metrics persistence about prometheus-nginxlog-exporter HOT 4 CLOSED

With what kind of metrics do you see that as a problem? I think that is the normal behavior for Prometheus metrics in general and Prometheus is ready to deal with that.

For example for counter metrics, it is normal that they may reset also without restart (they can't grow infinitely after all). Functions like rate and increase should be used to process counters, looking at the change in a certain time, and they are able to deal with counter resets.

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Thanks for your reply.
Rate and increase are generally not greatly affected, but counter will be greatly affected.
For example, if I want to count the total number of visits in the last hour, day or week, if a reset occurs during this period, then I may get a negative number result.
To be more specific, assuming that the value of nginx_http_response_count_total was 10000 a day ago, and the exporter restarted today, and the value is 1 at this time, then the number of visits I get is -9999.

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Not sure what you want to track here - it should be no problem using increase to for instance get daily request counts (or for some other time frame where metrics are retained).

If you want to have a counter of requests over a time that extends what is stored in Prometheus, then I think Prometheus might not be the right tool or you would at least need to process and store the information somewhere else.

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Not sure what you want to track here - it should be no problem using increase to for instance get daily request counts (or for some other time frame where metrics are retained).

If you want to have a counter of requests over a time that extends what is stored in Prometheus, then I think Prometheus might not be the right tool or you would at least need to process and store the information somewhere else.

Thank u. I made a mistake. When calculating the number of visits over a period of time, it is not simply subtracting, but using functions such as increase and rate.

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