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https://issues.apache.org/jira/browse/FLINK-3154?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17909176#comment-17909176
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Kurt Ostfeld commented on FLINK-3154:
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[~nicknezis] If there is interest, I can submit a new dramatically simpler PR
that simply updates Kryo and makes only changes necessary to accommodate that.
The last PR involved a lot of code to maintain compatibility with older saved
state that had been generated with Kryo 2.x. That was done a while ago before
work had started on Flink 2.x. Now that Flink 2.x is dropping compatibility
with existing saved state, that makes the Kryo upgrade dramatically simpler.
> Update Kryo version from 2.24.0 to latest Kryo LTS version
> ----------------------------------------------------------
>
> Key: FLINK-3154
> URL: https://issues.apache.org/jira/browse/FLINK-3154
> Project: Flink
> Issue Type: Improvement
> Components: API / Type Serialization System
> Affects Versions: 1.0.0
> Reporter: Maximilian Michels
> Priority: Not a Priority
> Labels: pull-request-available
>
> Flink's Kryo version is outdated and could be updated to a newer version,
> e.g. kryo-3.0.3.
> From ML: we cannot bumping the Kryo version easily - the serialization format
> changed (that's why they have a new major version), which would render all
> Flink savepoints and checkpoints incompatible.
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