Hi All, A very long pending task, protobuf upgrade is happening in HADOOP-13363. As part of that protobuf version is upgraded to 3.7.1.
Please update your build environments to have 3.7.1 protobuf version. BUILIDING.txt has been updated with latest instructions. This pre-requisite to update protoc dependecy manually is required until 'hadoop-maven-plugin' is replaced with 'protobuf-mavem-plugin' to dynamically resolve required protoc exe. Dockerfile is being updated to have latest 3.7.1 as default protoc for test environments. Thanks, -Vinay
