CODEWITHSUNDEEP
prometheus
Uday Kiran
Uday Kiran

Reputation: 612

How to fix ' \"INVALID\" is not a valid start token" ' in Prometheus

I have spring-boot project with dependencies for web and actuator which is running on port 7071

I am able to see prometheus and metric for my service triggers http://localhost:7071/prometheus http://localhost:7071/metrics

but somehow http://localhost:9090/targets appearing DOWN with error "INVALID" is not a valid start token

I have tried to checked similar issue but did not help - INVALID is not a valid start token

prometheus.yml

scrape_configs:
  # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.
  - job_name: 'prometheus'

    # metrics_path defaults to '/metrics'
    # scheme defaults to 'http'.

    static_configs:
    - targets: ['localhost:9090','localhost:7071']

can you please help what is wrong with yaml configurations ?

Upvotes: 1

Views: 8378

Answers (1)

Maher Ismaail
Maher Ismaail

Reputation: 1663

I found the solution after 1 week of searching on internet, that When you are inside a container, you cannot access the localhost directly. You will need to add docker.for.win.localhost to your prometheus.yml file. See below:

 - job_name: 'spring-actuator'
metrics_path: '/actuator/prometheus'
scrape_interval: 5s
static_configs:
  - targets: ['docker.for.win.localhost:8080']

Upvotes: 2

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