Package org.apache.beam.runners.jet.metrics

Class JetMetricResults

java.lang.Object
org.apache.beam.sdk.metrics.MetricResults
org.apache.beam.runners.jet.metrics.JetMetricResults
public class JetMetricResults extends MetricResults
Jet specific MetricResults.

  • Constructor Details

    • JetMetricResults

      public JetMetricResults(com.hazelcast.map.IMap<String,org.apache.beam.runners.core.metrics.MetricUpdates> metricsAccumulator)

  • Method Details

    • freeze

      public void freeze()

    • queryMetrics

      public MetricQueryResults queryMetrics(@Nullable MetricsFilter filter)
      Description copied from class: MetricResults
      Query for all metric values that match a given filter.

      The filter may filter based on the namespace and/or name of the metric, as well as the step that reported the metric.

      For each type of metric, the result contains an iterable of all metrics of that type that matched the filter. Each MetricResult includes the name of the metric, the step in which it was reported and the MetricResult.getCommitted() and MetricResult.getAttempted() values.

      Note that runners differ in their support for committed and attempted values.

      Example: Querying the metrics reported from the SomeDoFn example in Metrics could be done as follows: 

      
 Pipeline p = ...;
 p.apply("create1", Create.of("hello")).apply("myStepName1", ParDo.of(new SomeDoFn()));
 p.apply("create2", Create.of("world")).apply("myStepName2", ParDo.of(new SomeDoFn()));
 PipelineResult result = p.run();
 MetricResults metrics = result.metrics();
 MetricQueryResults metricResults = metrics.queryMetrics(new MetricsFilter.Builder()
     .addNameFilter("my-counter")
     .addStepFilter("myStepName1").addStepFilter("myStepName2")
     .build());
 Iterable<MetricResult<Long>> counters = metricResults.getCounters();
 // counters should contain the value of my-counter reported from each of the ParDo
 // applications.
      Specified by:
      queryMetrics in class MetricResults