Hi everyone,
I am trying to use xhttp_prom and there are some issues that i want to share
with you.
Metric Naming:
I get warning at prometheus side like as follows,
WARN[0659] append failed err="no token found" source="scrape.go:648"
target="{__address__="192.168.42.1:9080", __metrics_path__="/metrics",
__scheme__="http", instance="192.168.42.1:9080", job="vmm"}"
With respect to prometheus documentation, metric names need to fullfill
following naming requirement -> "It must match the regex
[a-zA-Z_:][a-zA-Z0-9_:]*" (source:
https://prometheus.io/docs/concepts/data_model/#metric-names-and-labels)
However, kamailio gives unmatch outputs as follows because they have '-' char,
(related discussion: https://github.com/prometheus/prometheus/issues/3154 )
* kamailio_usrloc_location-contacts 0 1576046310669
* kamailio_usrloc_location-expires 0 1576046310669
* kamailio_usrloc_location-users 0 1576046310669
whit that naming, prometheus can not parse values of any metrics.
Documentation:
Example 1.1. Set xhttp_prom_buf_size parameter
...
modparam("xhttp", "xhttp_prom_buf_size", 1024)
...
For that example, it should be as follows,
...
modparam("xhttp_prom", "xhttp_prom_buf_size", 1024)
...
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