Prometheus 2 & spring-boot: "no token found"

[bo...@kairat.eu]

Hi @all!

I'm new in the prooooometheus world and just tried to use it in my spring boot project.

What I did:

Add prometheus to pom:
        <dependency>
            <groupId>io.prometheus</groupId>
            <artifactId>simpleclient_spring_boot</artifactId>
            <version>0.1.0</version>
        </dependency>

Activate it via annotation:
(Class contained more code in between my tries...)

@Configuration
@EnablePrometheusEndpoint
public class PrometheusConfiguration {}

Download and unpack prometheus:
prometheus-2.0.0-rc.2.linux-amd64.tar.gz

Adapt prometheus.yml

#...
scrape_configs:
  - job_name: 'prometheus'

    # metrics_path defaults to '/metrics'
    # scheme defaults to 'http'.
   
    basic_auth:
        username: admin
        password: s3cr3t

    static_configs:
      - targets: ['localhost:8080']


Run spring-boot app and prometheus.


Targets-Web-Page http://localhost:9090/targets gives me:
prometheus (0/1 up)
Endpoint                                 State     Labels                                 Last Scrape     Error
http://localhost:8080/metrics    down     instance="localhost:8080"     14.734s ago     no token found

Console output of prometeus gives me:
level=warn ts=2017-10-27T13:20:50.25392254Z caller=scrape.go:673 component="target manager" scrape_pool=prometheus target=http://localhost:8080/metrics msg="append failed" err="no token found"

Content of /metrics is:
{"mem":491665,"mem.free":274533,"processors":4,"instance.uptime":940532,"uptime":944976,"systemload.average":0.04,"heap.committed":424960,"heap.init":129024,"heap.used":150426,"heap":1817088,"nonheap.committed":68000,"nonheap.init":2496,"nonheap.used":66705,"nonheap":0,"threads.peak":25,"threads.daemon":21,"threads.totalStarted":29,"threads":23,"classes":9983,"classes.loaded":9983,"classes.unloaded":0,"gc.ps_scavenge.count":9,"gc.ps_scavenge.time":97,"gc.ps_marksweep.count":2,"gc.ps_marksweep.time":107,"httpsessions.max":-1,"httpsessions.active":63,"datasource.primary.active":0,"datasource.primary.usage":0.0,"gauge.response.metrics":398.0,"gauge.response.star-star.favicon.ico":3.0,"counter.status.200.star-star.favicon.ico":2,"counter.status.200.metrics":62,"counter.status.401.metrics":2}


Any ideas? :-|

Greetings!
Boris

[Brian Brazil]

That's not valid Prometheus metrics output. Make sure you're specifying the right endpoint to scrape.

Brian

 

Any ideas? :-|

Greetings!
Boris

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Brian Brazil

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[Ben Kochie]

That looks like a very old version of client_java, from back when the output was json.  Looks like you should update to the latest release of client_java.

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[bo...@kairat.eu]

@Brian Brazil: THX! Monitoring the correct url helps...