public Builder clearGroupVertices() {
        groupVertices_ =
          com.google.protobuf.LazyStringArrayList.emptyList();
        bitField0_ = (bitField0_ & ~0x00000002);;
        onChanged();
        return this;
      }
<code>repeated string group_vertices = 2;</code>
@return This builder for chaining.
llap-common/src/gen/protobuf/gen-java/org/apache/hadoop/hive/llap/daemon/rpc/LlapDaemonProtocolProtos.java