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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2022/01/29 02:48:58 UTC
[GitHub] [pulsar] codertmy opened a new issue #14023: Prometheus summaries for rate_in or rate_out are incorrect when using short connections for production or consumption
codertmy opened a new issue #14023:
URL: https://github.com/apache/pulsar/issues/14023
**Describe the bug**
Prometheus summaries for rate_in or rate_out are incorrect when using short connections for production or consumption。
**To Reproduce**
Steps to reproduce the behavior:
1、Producing message as follow:
while (true) {
Producer<String> stringProducer = client.newProducer(Schema.STRING)
.topic("my-topic")
.create();
stringProducer.send("My message");
stringProducer.close();
}
2、View metrics
# TYPE pulsar_rate_in gauge
pulsar_rate_in{cluster="pulsar-cluster-iot"} 0 1643423953979
pulsar_rate_in{cluster="pulsar-cluster-iot",namespace="public/default"} 0.0 1643423955593
pulsar_throughput_in{cluster="pulsar-cluster-iot",namespace="public/default"} 0.0 1643423955593
# TYPE pulsar_in_bytes_total gauge
pulsar_in_bytes_total{cluster="pulsar-cluster-iot",namespace="public/default"} 357648079110085 1643423955593
# TYPE pulsar_in_messages_total gauge
pulsar_in_messages_total{cluster="pulsar-cluster-iot",namespace="public/default"} 2378188398726 1643423955593
**Screenshots**
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[GitHub] [pulsar] tjiuming commented on issue #14023: Prometheus summaries for rate_in or rate_out are incorrect when using short connections for production or consumption
Posted by GitBox <gi...@apache.org>.
tjiuming commented on issue #14023:
URL: https://github.com/apache/pulsar/issues/14023#issuecomment-1063835605
The metric calculated by a scheduler, schedule interval default 60s. So if you request /metric endpoint more than once in a same interval, the metric value isn't changed.
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