[
https://issues.apache.org/jira/browse/FLINK-6022?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15904920#comment-15904920
]
Robert Metzger commented on FLINK-6022:
---------------------------------------
I think protobuf always works with generated serializers with a fixed schema
(that's the common case for Avro as well), so I don't think there's a need to
add support there.
For Thrift I don't know.
I haven't heard any complaints for Thrift and Protobuf. For Avro this issue has
come up with at least two users.
> Improve support for 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
>
> 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.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
