Thanks for the reply. > And would it be possible for you to upgrade your gRPC library and try to reproduce this? I didn't see any similar issue (marked fixed or not) in https://github.com/grpc/grpc/issues; we were hoping the community could confirm whether this has been observed and fixed already but went unreported in github.
> v1.36.4 is over a year old, and a fair handful of bug fixes have gone in since then. We're using the still experimental TLSCredentials so every version bump is non-trivial, and we've already found fixed a number of core bugs ourselves, so it'll be a while before we're upgrading again in production. > Regarding that, are you able to reproduce the conditions in which the failure occurs, or are they maybe not fully understood? e.g., run a local DNS server for testing, and modify its records. Yeah, the exact conditions are not well understood, but almost certainly happening during a restart of the local caching dnsmasq server due to intermittent connection loss. On Fri, Aug 5, 2022 at 8:35 PM 'AJ Heller' via grpc.io < grpc-io@googlegroups.com> wrote: > That's mysterious, do you know what the state of the DNS records are when > this occurs? And would it be possible for you to upgrade your gRPC library > and try to reproduce this? v1.36.4 is over a year old, and a fair handful > of bug fixes have gone in since then. > > We've been unable to reproduce this failure in testing, and would >> appreciate any pointers: >> > > Regarding that, are you able to reproduce the conditions in which the > failure occurs, or are they maybe not fully understood? e.g., run a local > DNS server for testing, and modify its records. > > >> >> - what is supposed to re-kick a new DNS resolve if the server list is >> empty? >> - where to check in the resolver code for an empty server list? >> - or any other ideas for how to track down the problem >> >> >> We're using grpc v1.36.4 w/ libcares2 1.14 >> >> Regards, >> Peter Hurley >> > -- > You received this message because you are subscribed to the Google Groups " > grpc.io" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to grpc-io+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/grpc-io/306779dd-0a68-4b95-851e-0a5979a4e872n%40googlegroups.com > <https://groups.google.com/d/msgid/grpc-io/306779dd-0a68-4b95-851e-0a5979a4e872n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "grpc.io" group. To unsubscribe from this group and stop receiving emails from it, send an email to grpc-io+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/grpc-io/CAKzaEUf00rkYWHD6aq1nks8WhVo59wrTcaspkMk2EHUDc1b0JQ%40mail.gmail.com.
