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https://issues.apache.org/jira/browse/SCB-466?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16431602#comment-16431602
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yangyongzheng commented on SCB-466:
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1. [https://prometheus.io/docs/concepts/metric_types/]
*The Prometheus server does not yet make use of the type information and
flattens all data into untyped time series. This may change in the future.*
2. [https://prometheus.io/docs/instrumenting/writing_exporters/]
*Often it won’t be obvious what the type of metric is, especially if you’re
automatically processing a set of metrics. In general {{UNTYPED}} is a safe
default.*
So,I think use *UNTYPED* is not a big problem.
> improve metrics prometheus and contribute to
> https://github.com/prometheus/client_java
> --
>
> Key: SCB-466
> URL: https://issues.apache.org/jira/browse/SCB-466
> Project: Apache ServiceComb
> Issue Type: Improvement
> Components: Java-Chassis
>Reporter: wujimin
>Priority: Major
>
> currently we only convert spectator measurement to prometheus Sample
> but lost sample type
>
> before we contribute the code, we should improve the converter better, like:
> https://github.com/prometheus/client_java/blob/master/simpleclient_dropwizard/src/main/java/io/prometheus/client/dropwizard/DropwizardExports.java
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