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https://issues.jboss.org/browse/WFLY-11458?page=com.atlassian.jira.plugin...
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Jan Martiska edited comment on WFLY-11458 at 12/14/18 7:11 AM:
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I guess the problem is here
https://github.com/smallrye/smallrye-metrics/blob/1.1.2/implementation/sr...
- IIUC {{scaleToBase}} is for converting to seconds (which is the unit in which we should
always be presenting snapshot summaries), but as the input unit param, it is being given
{{md.getUnit()}} which denotes the base unit of the metric, but it should instead be
NANOSECONDS because that's the unit in which the data is internally stored. So in our
case it converts to seconds, but converts from the wrong input unit.
I suppose the {{scaleToBase}} method be rather named {{convertToSecondsOrBytes}} which is
what it really does. I was confused at first because I thought "base" referred
to the base unit that the metric uses.
Current proposal for fix, but will need some more testing (and adding some more comments
because the code is very hard to read IMO):
https://github.com/jmartisk/smallrye-metrics/commits/issue-40
Surprisingly this does not seem to be covered in the TCKs either, I will consider adding
some tests for that
was (Author: jmartisk):
I guess the problem is here
https://github.com/smallrye/smallrye-metrics/blob/1.1.2/implementation/sr...
- IIUC {{scaleToBase}} is for converting to seconds (which is the unit in which we should
always be presenting snapshot summaries), but as the input unit param, it is being given
{{md.getUnit()}} which denotes the base unit of the metric, but it should instead be
NANOSECONDS because that's the unit in which the data is internally stored. So in our
case it converts to seconds, but converts from the wrong input unit.
I suppose the {{scaleToBase}} method be rather named {{convertToSecondsOrBytes}} which is
what it really does.
Current proposal for fix, but will need some more testing (and adding some more comments
because the code is very hard to read IMO):
https://github.com/jmartisk/smallrye-metrics/commits/issue-40
Surprisingly this does not seem to be covered in the TCKs either, I will consider adding
some tests for that
Timed - difference between Prometheus and JSON format
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Key: WFLY-11458
URL:
https://issues.jboss.org/browse/WFLY-11458
Project: WildFly
Issue Type: Bug
Components: MP Metrics
Affects Versions: 15.0.0.Final
Reporter: Rostislav Svoboda
Assignee: Bartosz Baranowski
Priority: Critical
There are differences in reported results between Prometheus and JSON format.
When using the same deployment with OpenLiberty there are no differences in reported
results between Prometheus and JSON format.
https://github.com/smallrye/smallrye-metrics/issues/40
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