On Sun, 23 Aug 2020 at 16:56, Julien Pivotto <[email protected]> wrote:
> On 23 Aug 12:17, Brian Brazil wrote: > > On Sun, 23 Aug 2020 at 12:08, Julien Pivotto <[email protected] > > > > wrote: > > > > > Dear developers, > > > > > > Prometheus has an experimental api V2 in GRPC, which does not get any > > > updates. In addition, it is marked experimental, so we could drop it in > > > minor releases. > > > > > > The code itself is quite small, there is (to my knowledge) no > > > documentation and no tests. > > > > > > The feature surface seems to be really small, with only admin-specific > > > API's implemented. > > > > > > At this point, I'd like to see if we could remove that code, and also > > > the cmux library we use, which did not get any updated in 2 years, and > > > is incompatible with recent releases of GRPC. > > > > > > The plan of record is to remove it whenever 3.0 is released, however if > > it's causing us hassle I see no issue with removing it sooner. > > 1. CMUX > > That cmux library is using the helloworld package from grpc which is > gone. > > https://github.com/soheilhy/cmux/blob/8a8ea3c53959009183d7914522833c1ed8835020/example_test.go#L32 > > Additionally, the 2.21 fixes some misconfiguration of the cmux that > makes prometheus hang on SIGTERM. I hope that the mitigation we have is > complete, but the library lacks features like clean shutdown: > https://github.com/soheilhy/cmux/issues/39 > > At the end the repo seems abandoned since 2 years. > > 2. GRPC > > We can not update GRPC, partly because of cmux, partly because we are > friendly with downstream, cortex, which depends on etcd, which > requires an old version of grpc. > > This is blocking an update of google.golang.org/api, which is used > in our GCE discovery. > Those sound like good enough reasons to me. -- Brian Brazil www.robustperception.io -- 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/CAHJKeLoUDDCM8eQCez206ccrWj%3Dpb%3DQE-ibR0NLFyEgADbRMFw%40mail.gmail.com.
