[jira] [Updated] (FLINK-16729) Offer an out-of-the-box Set serializer

["Flink Jira Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-16729?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Flink Jira Bot updated FLINK-16729:
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    Labels: auto-deprioritized-major stale-minor  (was: auto-deprioritized-major)

I am the [Flink Jira Bot|https://github.com/apache/flink-jira-bot/] and I help the community manage its development. I see this issues has been marked as Minor but is unassigned and neither itself nor its Sub-Tasks have been updated for 180 days. I have gone ahead and marked it "stale-minor". If this ticket is still Minor, please either assign yourself or give an update. Afterwards, please remove the label or in 7 days the issue will be deprioritized.


> Offer an out-of-the-box Set serializer
> --------------------------------------
>
>                 Key: FLINK-16729
>                 URL: https://issues.apache.org/jira/browse/FLINK-16729
>             Project: Flink
>          Issue Type: New Feature
>          Components: API / Type Serialization System
>    Affects Versions: 1.11.0
>            Reporter: Nico Kruber
>            Priority: Minor
>              Labels: auto-deprioritized-major, stale-minor
>
> Currently, Set types are serialized by Kryo by default, since Flink does not come with an own SetSerializer (only one for maps). While the MapSerializer can be easily adapted to cover sets instead, I think, this should be available by default to get the maximum performance out of Flink (kryo is slow!)
>  
> When this is added, however, we need to provide a migration path for old state (or not use the new SetSerializer by default but offer to opt-in). This may need further investigation as to whether it is possible to migrate from kryo automatically and whether we can check potential changes to the encapsulated entry class.



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