On 04/12/2020 21:54, Victor Augusto Farias Dinis wrote:
Hi there!
I am trying to build a few set of metrics for the health information
of my Spring Boot Application (it has the Actuator framework as the
metrics aggregator).
At first, I have tried to implement a gauge metric, intercepting the
result of all health checks that my app does. When I saw the result,
the metrics appeared to be static, even though I was setting it to 1
and -1, depending on the UP and DOWN information.
Because of that, I tried to implement a summary metric, but when I
tried to put those info into a Grafana Dashboard, it was getting
really difficult to achieve what I was intending to.
That said, I have two questions:
1. Am I trying to do something wrong, considering a gauge metric like
a "boolean" metric? Because is exactly that that I wish to achieve in
the end.
2. What am I doing wrong, so that the metric kept its first value set?
Here is the snippet of the code:
*/meterRegistry.gauge("health_state", tagsHealth,
healthResponse.getStatus().equals(Status.UP) ? 1 : -1)/*
*/
/*
I tried to use other constructors, but the result was the same. With
the Gauge API, I was getting another error.
Has anyone received the same error or a similar one?
*Important info:*
*Java Version:* 12
*Spring Boot Version:* 2.3.4.RELEASE
Using a gauge to express a boolean or other fixed options is quite normal.
In fact Prometheus does it itself with the "up" metric. However it is
normal to use 1 and 0 for the true/false values (which also makes some
queries simpler).
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