where are valuerecorders?

[nerdvegas]

Hi,

I'm new to opentelem and trying to get to grips.

I looked here: https://open-telemetry.github.io/opentelemetry-python/api/metrics.html#opentelemetry.metrics.BoundValueRecorder

..but that doesn't seem to match the code at all. What's going on? I can't tell what version those docs are generated from, it doesn't say anywhere. I am thoroughly confused. Are those docs for an older version? If so, what's the new equivalent of a value recorder?

Thanks
Allan

[srikanthccv]

@nerdvegas that's based on the old branch which used for some benchmarks. The correct docs lives at here https://opentelemetry-python.readthedocs.io/en/latest/. This is the new equivalent for value recorder.

[CrashLaker]

hi @srikanthccv,
could you help me please?

back then i used to use create_valuerecorder to push some metrics on demand.

vr = meter.create_valuerecorder(...)
vr.record(value, label)

but now.. how can i replicate the code above?
as far as i understand from the docs https://opentelemetry-python.readthedocs.io/en/latest/api/metrics.html
now we can only publish 1 metric_name per callback iteration?

meter.create_observable_counter(
    "system.cpu.time",
    callbacks=[cpu_time_callback({"user", "system"})],
    unit="s",
    description="CPU time"
)

using create_valuerecorder back then we could iterate over many metric names.
for example if i want to have

vrmap = {
   "metric1": meter.create_valuerecorder(...),
   "metric2": meter.create_valuerecorder(...),
   "metric3": meter.create_valuerecorder(...),
}
#payload = from_api_call()
payload = {
  "metric1": 1,
  "metric2": 2,
  "metric3": 3,
}
for k,v in payload.items():
    vrmap[k].record(v, label)

how can we do this now?

[srikanthccv]

@CrashLaker I guess the equivalent for use case is to use sync gauge which is yet to be added #3462