8000 Histogram metric computes 1,5,15 min rates incorrectly · Issue #227 · ucbrise/clipper · GitHub
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Histogram metric computes 1,5,15 min rates incorrectly #227

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dcrankshaw opened this issue Jun 23, 2017 · 1 comment
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Histogram metric computes 1,5,15 min rates incorrectly #227

dcrankshaw opened this issue Jun 23, 2017 · 1 comment
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@Corey-Zumar
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@dcrankshaw
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There is a bug in the way the the metrics::Histogram computes the running rates. For example, with a steady workload of ~850 qps, the histogram reports the following rates:

              "internal:aggregate_model_throughput": {
                  "unit": "events per second",
                  "rate": "862.38770176081448",
                  "rate_1min": "4009.4179095954541",
                  "rate_5min": "11650.076397861654",
                  "rate_15min": "13916.713327875257"
              }
          }
@Corey-Zumar
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PR out for a fix: #228

@Corey-Zumar Corey-Zumar mentioned this issue Jun 24, 2017
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