Created by: pkuyym

类别大概有1000多万，单机CPU版报错，具体如下：

libprotobuf ERROR google/protobuf/io/coded_stream.cc:156] A protocol message was rejected because it was too big (more than 67108864 bytes). To increase the limit (or to disable these warnings), see CodedInputStream::SetTotalBytesLimit() in google/protobuf/io/coded_stream.h.