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Posted to commits@beam.apache.org by "Malo Denielou (JIRA)" <ji...@apache.org> on 2017/04/21 17:46:04 UTC

[jira] [Created] (BEAM-2046) Better API for querying metrics

Malo Denielou created BEAM-2046:
-----------------------------------

             Summary: Better API for querying metrics
                 Key: BEAM-2046
                 URL: https://issues.apache.org/jira/browse/BEAM-2046
             Project: Beam
          Issue Type: Improvement
          Components: sdk-java-core
    Affects Versions: First stable release
            Reporter: Malo Denielou
            Assignee: Davor Bonaci


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.



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