【DefaultHttp2HeadersEncoder】can not config HeaderTableSize in grpc-java-api

[vio-lin]

@Override
  public NettyServerBuilder configureServerBuilder(NettyServerBuilder builder, URL url) {
    builder.addStreamTracerFactory(new ServerStreamTracer.Factory() {
      @Override
      public ServerStreamTracer newServerStreamTracer(String fullMethodName, Metadata headers) {
        String contentType = cDubboUtils.extractContextType(headers);
        return new ServerStreamTracer() {
          @Override
          public Context filterContext(Context context) {
            return context.withValue(GrpcConstants.Serialization.SERIALIZATION_KEY, contentType);
          }
        };
      }
    });
    return builder;
  }

we want to use http2 to encode headers to optimise data transport.
as DefaultHttp2HeadersEncoder HeaderTableSize default 4096
when we add headers size over 4096 can not be compression in grpc

io.netty.handler.codec.http2.HpackEncoder#ensureCapacity   
size over 4096 will note be compress

and for grpc server i can not find any way to config thsi properties