We have changed most of our serialization methods to json. In order to be compatible with previous data, these classes still retain the readFields method. Some prs that involve modifying metadata often modify the readFields method. To avoid this, we should Mark these methods as Deprecated #4398
# fe-common This module is used to store some common classes of other modules. # spark-dpp This module is Spark DPP program, used for Spark Load function. Depends: fe-common # fe-core This module is the main process module of FE. Depends: fe-common, spark-dpp