[FLINK-2053] Preregister ML types for Kryo serialization

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.9
• Component/s: Library / Machine Learning
• Labels: ML
• Assignee: Till Rohrmann
• Reporter: Till Rohrmann
• Created: 20/May/15 07:50
• Updated: 26/May/15 11:57
• Resolved: 26/May/15 09:46

Description

Currently, FlinkML uses interfaces and abstract types to implement generic algorithms. As a consequence we have to use Kryo to serialize the effective subtypes. In order to speed the data transfer up, it's necessary to preregister these types in order to assign them fixed IDs.