<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div><br></div><div><blockquote type="cite"><div>On Jan 17, 2024, at 3:38 PM, Brad House <brad@brad-house.com> wrote:</div><div>
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<div><p>What version of c-ares is installed?</p></div></div></blockquote><div>Sorry about the delay in responding. Answering this question is more difficult than I expected.</div><div><br></div><div>I know that Spark Connect is running gRPC 1.160.0. Looking through the gRPC repo, I see mention of <a href="https://github.com/grpc/grpc/blob/v1.60.0/cmake/cares.cmake#L42">c-ares 1.13.0</a>, but I don’t know how that translates to my runtime. Homebrew tells me I have c-ares 1.25.0 installed, but again, I’m not sure if that’s what I’m actually running.</div><div><br></div><div>Is there a way I can directly query the version of c-ares being run via Spark Connect / gRPC? I asked <a href="https://groups.google.com/g/grpc-io/c/3tZCa48Xvh8">this question on the gRPC forum</a> but no response yet.</div><div><br></div><div>For the record, I know that c-ares is involved because if I tell gRPC to not use it (via <a href="https://github.com/grpc/grpc/blob/b34d98fbd47834845e3f9cdaa4aa706f1aa4eddb/doc/environment_variables.md">GRPC_DNS_RESOLVER=native</a>) then my problem disappears.</div><blockquote type="cite"><div><div><p>What DNS servers are configured on your MacOS system when its not
operating properly? The output of "scutil --dns" would be helpful
here.<br>
</p>
</div></div></blockquote></div><a href="https://gist.github.com/nchammas/a4c9873d8158c323796e9b47c064e63a#file-scutil-dns-txt">Here’s that output.</a> I believe 192.168.1.1 is just my local router, and on there is where I have the default DNS servers set to 1.1.1.1 and 1.0.0.1.<div><br></div></body></html>