Invalid character 'A' looking for beginning of value

[jasony (Jason)]

hello,

i am trying to replicate below 'curl' query with metricbeat http module. as you see below, 127.0.0.1:8088 opens and responds well as below.

$ curl -XGET http://127.0.0.1:8088
Active connections: 5
server accepts handled requests
 35 35 134
Reading: 0 Writing: 2 Waiting: 3

to real time monitoring with metricbeat, i set metricbeat configuration as below.

metricbeat.modules:
- module: http
  metricsets:
    - json
  period: 10s
  namespace: "nginx"
  hosts: ["127.0.0.1:8088"]
#  path: "/"
  method: "GET"
output.kafka:
  version: 0.10.2.1
  enabled: true
  # initial brokers for reading cluster metadata
  hosts: ["kfk-01:9092"]
  # message topic selection + partitioning
  topic: 'http_mon'

but the result from kafka says as below.

{"@timestamp":"2019-07-15T07:27:36.545Z","@metadata":{"beat":"metricbeat","type":"doc","version":"6.7.1","topic":"http_mon"},"event":{"dataset":"http.json","duration":354214},"error":{"message":**"invalid character 'A' looking for beginning of value"**},"host":{"name":"csl-01"},"metricset":{"name":"json","module":"http","host":"127.0.0.1:8088","rtt":354}}

is my metricbeat configuration wrong? please advise.

thank you!

[jsoriano (Jaime Soriano)]

Hi @jasony,

The http module at this moment can only collect information from JSON responses, this is done with the json metricset you are using.
Can this service respond in JSON format?

[jasony (Jason)]

No it responds in text format. I will change the response format to json then.

Thank you for your advise.