CustomCollector default 60s interval

[Duane Schultz]

I've written a CustomCollector to capture some device information via API calls. I'm registering my CustomCollector() code as follows;

   start_http_server(8000)

    REGISTRY.register(CustomCollector())

    while True:

        time.sleep(1)

The API calls I'm making to generate data are fairly expensive, and I only want to update the information every 5 minutes. I have Prometheus scraping this target at 5 minute intervals - that part is fine.

However, the CustomCollector code is being executed every 60 seconds, regardless of whether there has been a scrape request.

Is this default 60s interval configurable? I've looked through the register code in detail and browsed the client_python code but I haven't found anything significant.

Cheers,

Duane.

[Brian Brazil]

On Thu, 11 Jun 2020 at 05:50, Duane Schultz <duane....@gmail.com> wrote:

I've written a CustomCollector to capture some device information via API calls. I'm registering my CustomCollector() code as follows;

   start_http_server(8000)

    REGISTRY.register(CustomCollector())

    while True:

        time.sleep(1)

The API calls I'm making to generate data are fairly expensive, and I only want to update the information every 5 minutes. I have Prometheus scraping this target at 5 minute intervals - that part is fine.

Note that 2m is the maximum sane scrape interval.

 

However, the CustomCollector code is being executed every 60 seconds, regardless of whether there has been a scrape request.

Is this default 60s interval configurable? I've looked through the register code in detail and browsed the client_python code but I haven't found anything significant.

There's nothing in the Python client that'd do this, I'd presume something else is hitting it over HTTP.

--

Brian Brazil

www.robustperception.io