Blackbox return probe_success 0, but the website is up

[Mohamed Boukhlif]

Hi everyone,

I'm getting probe_success 0 but my site is up, any help please.

Here is my config : 

config.yml

modules:

  http_2xx:

    prober: http

  http_post_2xx:

    prober: http

    http:

      method: POST

  tcp_connect:

    prober: tcp

  pop3s_banner:

    prober: tcp

    tcp:

      query_response:

      - expect: "^+OK"

      tls: true

      tls_config:

        insecure_skip_verify: false

  ssh_banner:

    prober: tcp

    tcp:

      query_response:

      - expect: "^SSH-2.0-"

  irc_banner:

    prober: tcp

    tcp:

      query_response:

      - send: "NICK prober"

      - send: "USER prober prober prober :prober"

      - expect: "PING :([^ ]+)"

        send: "PONG ${1}"

      - expect: "^:[^ ]+ 001"

  icmp:

    prober: icmp

prometheus.yml

  - job_name: 'blackbox'

    metrics_path: /probe

    params:

      module: [http_2xx]

    static_configs:

      - targets:

        - https://mywebsite.com

    relabel_configs:

      - source_labels: [__address__]

        target_label: __param_target

      - source_labels: [__param_target]

        target_label: instance

      - target_label: __address__

        replacement: blackbox:9115 

[Evelyn Pereira Souza]

On 05.03.21 10:27, Mohamed Boukhlif wrote:
> Hi everyone,
>
> I'm getting probe_success 0 but my site is up, any help please.
> Here is my config :

(...)
>
> *prometheus.yml*

>   - job_name: 'blackbox'
>     metrics_path: /probe
>     params:
>       module: [http_2xx]
>     static_configs:
>       - targets:
>         - https://mywebsite.com
>     relabel_configs:
>       - source_labels: [__address__]
>         target_label: __param_target
>       - source_labels: [__param_target]
>         target_label: instance
>       - target_label: __address__
>         replacement: blackbox:9115

Hi Mohamed

please add &debug=true to the probe URL, for example
http://localhost:9115/probe?module=http_2xx&target=https://mywebsite.com/&debug=true
and post the result here.

kind regards
Evelyn

[Mohamed Boukhlif]

Hi Evelyn,

Here are the logs :

ts=2021-03-05T11:00:25.241003327Z caller=main.go:304 module=http_2xx target=https://mywebsite.com level=info msg="Beginning probe" probe=http timeout_seconds=9.5

ts=2021-03-05T11:00:25.241228295Z caller=http.go:342 module=http_2xx target=https://mywebsite.com level=info msg="Resolving target address" ip_protocol=ip6 

ts=2021-03-05T11:00:25.242954198Z caller=http.go:342 module=http_2xx target=https://mywebsite.com level=info msg="Resolved target address" ip=2001:XXXX::10 

ts=2021-03-05T11:00:25.243051798Z caller=client.go:252 module=http_2xx target=https://mywebsite.com level=info msg="Making HTTP request" url=https://[2001:XXXX::10] host=mywebsite.com

ts=2021-03-05T11:00:25.243354351Z caller=main.go:119 module=http_2xx target=https://mywebsite.com level=error msg="Error for HTTP request" err="Get \"https://[2001:XXXX::10]\": dial tcp [2001:XXXX::10]:443: connect: cannot assign requested address"

ts=2021-03-05T11:00:25.24340739Z caller=main.go:119 module=http_2xx target=https://mywebsite.com level=info msg="Response timings for roundtrip" roundtrip=0 start=2021-03-05T11:00:25.243191401Z dnsDone=2021-03-05T11:00:25.243191401Z connectDone=2021-03-05T11:00:25.243301653Z gotConn=0001-01-01T00:00:00Z responseStart=0001-01-01T00:00:00Z end=0001-01-01T00:00:00Z

ts=2021-03-05T11:00:25.24348001Z caller=main.go:304 module=http_2xx target=https://mywebsite.com level=error msg="Probe failed" duration_seconds=0.002416975

Thank you,

[Mohamed Boukhlif]

Thank you, I solved it,

There was an issue with IPv6, I've added this line and it worked

preferred_ip_protocol: "ip4"

Thanks Evelyn.