[FLINK-1555] Add utility to log the serializers of composite types

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.9
• Assignee: Robert Metzger
• Reporter: Robert Metzger
• Created: 16/Feb/15 15:00
• Updated: 03/Mar/15 16:10
• Resolved: 03/Mar/15 16:10

Description

Users affected by poor performance might want to understand how Flink is serializing their data.

Therefore, it would be cool to have a tool utility which logs the serializers like this:
SerializerUtils.getSerializers(TypeInformation<POJO> t);
to get

PojoSerializer
    TupleSerializer
      IntSer
      DateSer
      GenericTypeSer(java.sql.Date)
    PojoSerializer
      GenericTypeSer(HashMap)