Hi Dhanush, I'm not sure why running it on AWS would limit the duration of scraped data for 2h. When you say you are only seeing 2h, are those the 2h of data after you started the instance (so past data), or the latest 2h from now (so current data)? What does the "up" metric say during the time period where you have no data from your target? And do you see any scrape errors? Also, what is your Prometheus version, configuration, and command-line?
Regards, Julius On Mon, Jan 25, 2021 at 4:53 AM Dhanush Eswar <[email protected]> wrote: > Hi Julius Volz, > Thanks for the explanation got the clear picture of the working of > Prometheus, It works fine in my local computer, when I host the Exporter to > the AWS instance, I am getting only the 2 hours of data, unlikely in local > it works for any number of hours(Getting the data uninterrupted when the > Exporter server is up), I think I am missing something while handling the > server on AWS Instance, Herby I am including the code for the server, > Kindly help me out to resolve that. > > Code: > import prometheus_client > class ABCD: > def function: > yield metric > > if __name__ == '__main__': > > start_http_server(int(sys.argv[1])) > REGISTRY.register(ABCD()) > while True: time.sleep(1) > > Best, > Dhanush Eswar G > > On Friday, January 22, 2021 at 11:40:19 PM UTC+5:30 [email protected] > wrote: > >> Hi Dhanush, >> >> The way Prometheus works (usually) is that it scrapes the current value >> of all metrics from a target / exporter. So a /metrics endpoint does not >> provide historical data, the history only gets built up by Prometheus >> itself as a process of scraping and storing current values periodically in >> the time series database. So if you only have been scraping for 2h, it's >> expected that you would only get 2h of data in your TSDB. >> >> Regards, >> Julius >> >> On Fri, Jan 22, 2021 at 10:37 AM Dhanush Eswar <[email protected]> >> wrote: >> >>> Hi, >>> I am new to prometheus, I am using prometheus_client python package for >>> exporting metrics and I hosted the python program on some Amazon EC2 >>> instance, I have been receiving the data from the metrics for only 2 hours >>> and the Graph of the Grafana shows only that data(for 2 hours), Can anyone >>> tell why its happening in such a way and provide me some tips. >>> >>> Best, >>> Dhanush Eswar G >>> >>> -- >>> 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/8f19c390-ad71-4c21-85ea-f0159c52a2b7n%40googlegroups.com >>> <https://groups.google.com/d/msgid/prometheus-users/8f19c390-ad71-4c21-85ea-f0159c52a2b7n%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> >> >> -- >> Julius Volz >> PromLabs - promlabs.com >> > -- > 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/fa59379c-05eb-437f-bca9-6214849484e5n%40googlegroups.com > <https://groups.google.com/d/msgid/prometheus-users/fa59379c-05eb-437f-bca9-6214849484e5n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- Julius Volz PromLabs - promlabs.com -- 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/CAObpH5wuEEH0y%2BjxYnwgzMm9nWT1CqYMG93-8mq5nRJppceezQ%40mail.gmail.com.
