luchunliang edited a comment on pull request #2165:
URL:
https://github.com/apache/incubator-inlong/pull/2165#issuecomment-1016020043
@shink
After calling the snapshot() method to extract the latest metrics values,
the metrics will go to zero.
MetricObserver snapshot latest values(List<MetricItemValue>) of the metrics
periodically from JMX MBean, and MetricObserver notify all MetricListener(audit
system and more different monitor systems).
The latest values of the metrics is the data of a period(for example: a
minute).
In opensource version, Prometheus HTTP Server provide the accumulated value
after node start to work for Prometheus monitor system.
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