Hi All, I would love to resurrect this thread. I think we are missing a good push-gateway like a product that would ideally live in Prometheus (repo/binary or can be recommended by us) and convert events to metrics in a cheap way. Because this is what it is when we talk about short-living containers and serverless functions. What's the latest Rob? I would be interested in some call for this if that is still on the table. (:
I think we have some new options on the table like supporting Otel metrics as such potential high-cardinal event push, given there are more and more clients for that API. Potentially Otel collector can work as such "push gateway" proxy, but at this point, it's extremely generic, so we might want to consider something more focused/efficient/easier to maintain. Let's see (: The other problem is that Otel metrics is yet another protocol. Users might want to use push gateway API, remote write or logs/traces as per @Tobias Schmidt <[email protected]> idea Another service "loggateway" (or otherwise named) would then stream the > logs, aggregate them and either expose them on the common /metrics endpoint > or push them with remote write right away to a Prometheus instance hosted > somewhere (like Grafana Cloud)." Kind Regards, Bartek Płotka (@bwplotka) On Fri, Jun 25, 2021 at 6:11 AM Rob Skillington <[email protected]> wrote: > With respect to OpenMetrics push, we had something very similar at $prevco > that pushed something that looked very similar to the protobuf payload of > OpenMetrics (but was Thrift snapshot of an aggregated set of metrics from > in process) that was used by short running tasks (for Jenkins, Flink jobs, > etc). > > I definitely agree it’s not ideal and ideally the platform provider can > supply a collection point (there is something for Jenkins, a plug-in that > can do this, but custom metrics is very hard / nigh impossible to make work > with it, and this is a non-cloud provider environment that’s actually > possible to make work, just no one has made it seamless). > > I agree with Richi that something that could push to a Prometheus Agent > like target that supports OpenMetrics push could be a good middle ground > with the right support / guidelines: > - A way to specify multiple Prometheus Agent targets and quickly failover > from one to another if within $X ms one is not responding (you could > imagine a 5ms budget for each and max 3 are tried, introducing at worst > 15ms overhead when all are down in 3 local availability zones, but in > general this is a disaster case) > - Deduplication ability so that a retried push is not double counted, this > might mean timestamping the metrics… (so if written twice only first record > kept, etc) > > I think it should similar to the Push Gateway be generally a last resort > kind of option and have clear limitations so that pull still remains the > clear choice for anything but these environments. > > Is there any interest discussing this on a call some time? > > Rob > > On Thu, Jun 24, 2021 at 5:09 PM Bjoern Rabenstein <[email protected]> > wrote: > >> On 22.06.21 11:26, Tobias Schmidt wrote: >> > >> > Last night I was wondering if there are any other common interfaces >> > available in serverless environments and noticed that all products by >> AWS >> > (Lambda) and GCP (Functions, Run) at least provide the option to handle >> log >> > streams, sometimes even log files on disk. I'm currently thinking about >> > experimenting with an approach where containers log metrics to stdout / >> > some file, get picked up by the serverless runtime and written to some >> log >> > stream. Another service "loggateway" (or otherwise named) would then >> stream >> > the logs, aggregate them and either expose them on the common /metrics >> > endpoint or push them with remote write right away to a Prometheus >> instance >> > hosted somewhere (like Grafana Cloud). >> >> Perhaps I'm missing something, but isn't that >> https://github.com/google/mtail ? >> >> -- >> Björn Rabenstein >> [PGP-ID] 0x851C3DA17D748D03 >> [email] [email protected] >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Prometheus Developers" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/prometheus-developers/20210624210908.GB11559%40jahnn >> . >> > -- You received this message because you are subscribed to the Google Groups "Prometheus Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-developers/CAMssQwaqFTzQOSFG%2B31_aPvpfdnV4-%3DCkf5HOtJCZxPThQLmWA%40mail.gmail.com.
