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https://issues.apache.org/jira/browse/FLINK-6022?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16432133#comment-16432133
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ASF GitHub Bot commented on FLINK-6022:
---------------------------------------

Github user zentol commented on the issue:

    https://github.com/apache/flink/pull/4943
  
    @shashank734 The commits are contained in 1.4 already. Have you read 
[this](https://github.com/apache/flink/pull/4943#issuecomment-342156083) 
comment?


> Don't serialise Schema when serialising Avro GenericRecord
> ----------------------------------------------------------
>
>                 Key: FLINK-6022
>                 URL: https://issues.apache.org/jira/browse/FLINK-6022
>             Project: Flink
>          Issue Type: Improvement
>          Components: Type Serialization System
>            Reporter: Robert Metzger
>            Assignee: Stephan Ewen
>            Priority: Major
>             Fix For: 1.5.0
>
>
> Currently, Flink is serializing the schema for each Avro GenericRecord in the 
> stream.
> This leads to a lot of overhead over the wire/disk + high serialization costs.
> Therefore, I'm proposing to improve the support for GenericRecord in Flink by 
> shipping the schema to each serializer  through the AvroTypeInformation.
> Then, we can only support GenericRecords with the same type per stream, but 
> the performance will be much better.



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