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From fhueske <...@git.apache.org>
Subject [GitHub] flink pull request #2612: FLINK-4771: Compression for AvroOutputFormat
Date Mon, 10 Oct 2016 12:13:14 GMT
Github user fhueske commented on a diff in the pull request:

    https://github.com/apache/flink/pull/2612#discussion_r82591316
  
    --- Diff: flink-batch-connectors/flink-avro/src/main/java/org/apache/flink/api/java/io/AvroOutputFormat.java
---
    @@ -36,6 +38,8 @@
     	private final Class<E> avroValueType;
     
     	private transient Schema userDefinedSchema = null;
    +
    +	private transient CodecFactory codecFactory = null;
    --- End diff --
    
    Flink uses Java Serialization to ship code from the client to the cluster. `CodecFactory`
does not implement `Serializable`. Therefore, the `codecFactory` field must be declared as
`transient`. However, the `writeObject` and `readObject` methods must be adapted to manually
serialize / deserialize the information. Otherwise, the `CodecFactory` is lost when the object
is deserialized at the client.


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