How to debug the Prometheus?

[李欣]

Hi all:

        I'm the new to Prometheus. I send data to Prometheus by Pushgatway, and I display data by Grafana. I find I lose data for 3 minutes. How to debug it ? I think the client which send data is OK, I check the log. And the network between the client and Pushgatway is alwyas OK.

I use these versions:

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prometheus-2.42.0-rc.0.linux-amd64

pushgateway-1.5.1.linux-amd64

grafana-9.3.6

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The Prometheus config:

##########################

  - job_name: "pushgatewayoverflow"
    #honor_labels: true
    scrape_interval: 30s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
    static_configs:
      - targets: ["127.0.0.1:9091"]

  - job_name: "pushgatewayportflow"
    #honor_labels: true
    scrape_interval: 30s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
    static_configs:
      - targets: ["127.0.0.1:9092"]

  - job_name: "pushgatewaybuflow"
    #honor_labels: true
    scrape_interval: 30s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
    static_configs:
      - targets: ["127.0.0.1:9093"]

##########################

If I just use only one Pushgateway, the frequency of data loss will increase.

Thank you.