Package org.apache.nlpcraft.model.opencensus

Class NCPrometheusExporter

java.lang.Object

org.apache.nlpcraft.model.opencensus.NCPrometheusExporter

All Implemented Interfaces:

NCLifecycle

public class NCPrometheusExporter
extends Object
implements NCLifecycle

Probe lifecycle component that manages OpenCensus Prometheus stats exporter. See https://opencensus.io/exporters/supported-exporters/java/prometheus/ for more details. This is a probe lifecycle component - see NCLifecycle for usage information.

When running Prometheus you will need to supply it a configuration file. Here's an example of the minimal YAML configuration you can use to monitor both the server and the probe:

 global:
   scrape_interval: 5s

   external_labels:
     monitor: 'nlpcraft'

 scrape_configs:
   - job_name: 'prometheus'
     scrape_interval: 5s
     static_configs:
       - targets: ['localhost:9090']
   - job_name: 'nlpcraft-server'
     scrape_interval: 5s
     static_configs:
       - targets: ['localhost:8888']
   - job_name: 'nlpcraft-probe'
     scrape_interval: 5s
     static_configs:
       - targets: ['localhost:8889']
 

See documentation on how to configure probe life cycle components, default values, etc.

Constructor Summary

Constructors

Constructor	Description
NCPrometheusExporter()

Method Summary

Modifier and Type	Method	Description
void	onInit()	Called before lifecycle component is used and just after its creation.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.nlpcraft.model.NCLifecycle

onDiscard

Constructor Detail

NCPrometheusExporter

public NCPrometheusExporter()

Method Detail

onInit

public void onInit()

Description copied from interface: NCLifecycle

Called before lifecycle component is used and just after its creation. This method is guaranteed to be called. Default implementation is no-op.

Specified by:

onInit in interface NCLifecycle