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Posted to dev@flink.apache.org by "Robert Metzger (JIRA)" <ji...@apache.org> on 2015/02/16 16:01:11 UTC

[jira] [Created] (FLINK-1555) Add utility to log the serializers of composite types

Robert Metzger created FLINK-1555:
-------------------------------------

             Summary: Add utility to log the serializers of composite types
                 Key: FLINK-1555
                 URL: https://issues.apache.org/jira/browse/FLINK-1555
             Project: Flink
          Issue Type: Improvement
            Reporter: Robert Metzger
            Priority: Minor


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



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