If Cheyenne is talking about the query server, I'm not sure where you're getting that from, Ted. It doesn't directly depend on protobufs, it's pulled in from Avatica:
    https://github.com/apache/phoenix/blob/v4.9.0-HBase-1.2/phoenix-queryserver/pom.xml
Avatica does use protobuf 3:
    https://github.com/apache/calcite/blob/calcite-avatica-1.9.0/avatica/pom.xml

Cheyenne, could you try building with an earlier version of Avatica?

On Mon, Feb 13, 2017 at 8:41 PM, Ted Yu <yuzhihong@gmail.com> wrote:
Phoenix uses protobuf 2.5
From pom.xml :

   <protobuf-java.version>2.5.0</protobuf-java.version>

FYI

On Mon, Feb 13, 2017 at 4:52 PM, Cheyenne Forbes <cheyenne.osanu.forbes@gmail.com> wrote:
my project highly depends on protobuf2, can I tell phoenix which version of protobuf to read with when I am sending a request?




--
Mark Heppner