[jira] [Updated] (FLINK-26960) Make it possible to drop an old unused registered Kryo serializer

["Gaël Renoux (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-26960?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gaël Renoux updated FLINK-26960:
--------------------------------
    Attachment: stack-trace.log

> Make it possible to drop an old unused registered Kryo serializer
> -----------------------------------------------------------------
>
>                 Key: FLINK-26960
>                 URL: https://issues.apache.org/jira/browse/FLINK-26960
>             Project: Flink
>          Issue Type: Bug
>          Components: API / Type Serialization System
>    Affects Versions: 1.15.0, 1.12.7, 1.13.6, 1.14.4
>            Reporter: Dawid Wysakowicz
>            Priority: Critical
>         Attachments: stack-trace.log
>
>
> If users register a Kryo serializer e.g. via:
> {code}
> env.registerTypeWithKryoSerializer(ClassA. ClassASerializer.class);
> {code}
> and then use a Kryo serializer for serializing state objects, the registered serializer is written into the KryoSerializer snapshot. Even if Kryo is used for serializing classes other than ClassA. This makes it impossible to remove {{ClassASerializer}} from the classpath, because it is required for reading the savepoint.
> This problem has been reported by users before e.g.
> https://lists.apache.org/thread/989mfrxqznvzpmhm0315kv23bxh1ln8y



--
This message was sent by Atlassian Jira
(v8.20.7#820007)