[GitHub] [beam] kennknowles opened a new issue, #18341: Better API for querying metrics

[GitBox <gi...@apache.org>]

kennknowles opened a new issue, #18341:
URL: https://github.com/apache/beam/issues/18341

   I just want to read a metric :-).
   
   Can we have a better API than this:
   
   Iterable<MetricResult<Long\>\> seenMetrics = job.metrics()
               .queryMetrics(
                   MetricsFilter.builder()
                       .addNameFilter(MetricNameFilter.named("XX", "YY"))
                       .build())
               .counters();
   long seenSentinels = Iterables.isEmpty(seenMetrics) ? 0
               : Iterables.getFirst(seenMetrics, null).committed();
   
   This is very clunky :-P.
   
   Ideally I'd like to read a metric with a name, and provide a default value if the metric is not there.
   
   Imported from Jira [BEAM-2046](https://issues.apache.org/jira/browse/BEAM-2046). Original Jira may contain additional context.
   Reported by: malo@google.com.


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