Hi CentOS developers (especially CloudSIG), I started playing with some of the el8 OpenStack Ussuri packages like gRPC 1.26 and protobuf 3.11.2. The packages from CBS are: grpc*1.26.0-1.el8.x86_64.rpm protobuf*3.11.2-2*rpm Immediately I hit the bug https://github.com/grpc/grpc/issues/21213 trying the simplest helloworld quickstart, where the ./greeter_server hangs. The Train packages for EL7 (gRPC 1.20, protobuf 3.6) work fine. Just a heads-up - I manually compiled gRPC 1.27.x (wow — that is hard to do) with CBS's protobuf and I got the quickstart to work. Anthony Alba