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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