Vinayakumar B created HADOOP-17046:
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Summary: Support downstreams' existing Hadoop-rpc implementations
using non-shaded protobuf classes.
Key: HADOOP-17046
URL: https://issues.apache.org/jira/browse/HADOOP-17046
Project: Hadoop Common
Issue Type: Improvement
Components: rpc-server
Affects Versions: 3.3.0
Reporter: Vinayakumar B
After upgrade/shade of protobuf to 3.7 version, existing Hadoop-Rpc
client-server implementations using ProtobufRpcEngine will not work.
So, this Jira proposes to keep existing ProtobuRpcEngine as-is (without shading
and with protobuf-2.5.0 implementation) to support downstream implementations.
Use new ProtobufRpcEngine2 to use shaded protobuf classes within Hadoop and
later projects who wish to upgrade their protobufs to 3.x.
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