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Posted to dev@flink.apache.org by "Till Rohrmann (JIRA)" <ji...@apache.org> on 2015/11/27 12:37:11 UTC

[jira] [Created] (FLINK-3088) WritableSerializer cannot copy writable object

Till Rohrmann created FLINK-3088:
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             Summary: WritableSerializer cannot copy writable object
                 Key: FLINK-3088
                 URL: https://issues.apache.org/jira/browse/FLINK-3088
             Project: Flink
          Issue Type: Bug
          Components: Core
    Affects Versions: 1.0.0, 0.10.1
            Reporter: Till Rohrmann
            Assignee: Till Rohrmann


The {{WritableSerializer}}, {{ValueSerializer}}, {{AvroSerializer}}, {{WritableComparator}} and {{ValueComparator}} use plain {{Kryo}} instances to copy the objects. In cases where {{Kryo}} fails to copy the object, e.g. missing no-arg constructor, the serializer and comparator instances fail even though the objects are serializable.

As a fallback strategy I propose to copy the objects by serializing and deserializing them. 



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