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Rqueue

Monitoring Queue Statistics

Rqueue supports monitoring via the Micrometer library.

Gauge Metrics

Rqueue provides the following gauge metrics:

  • queue.size: Number of tasks waiting to be processed.
  • dead.letter.queue.size: Number of tasks in the dead letter queue.
  • scheduled.queue.size: Approximate number of tasks scheduled for future execution.
  • processing.queue.size: Approximate number of tasks currently being processed.

Execution and Failure Counters

Execution and failure counters can be enabled (disabled by default) by configuring RqueueMetricsProperties.

rqueue.metrics.count.execution=true
rqueue.metrics.count.failure=true

Integration

Spring Boot Application

  1. Include Micrometer dependencies and relevant exporters.
  2. Set tags using rqueue.metrics.tags.<name> = <value> if needed.
  3. Enable counting features as required.

Spring Application

  1. Include Micrometer dependencies and provide MeterRegistry as a bean.
  2. Configure a RqueueMetricsProperties bean with necessary settings.

Example Grafana Dashboard

Grafana Dashboard