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From "Xiaogang Shi (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-6096) Refactor the migration of old versioned savepoints
Date Fri, 17 Mar 2017 08:10:41 GMT

     [ https://issues.apache.org/jira/browse/FLINK-6096?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xiaogang Shi updated FLINK-6096:
--------------------------------
    Component/s: State Backends, Checkpointing

> Refactor the migration of old versioned savepoints
> --------------------------------------------------
>
>                 Key: FLINK-6096
>                 URL: https://issues.apache.org/jira/browse/FLINK-6096
>             Project: Flink
>          Issue Type: Improvement
>          Components: State Backends, Checkpointing
>            Reporter: Xiaogang Shi
>
> Existing code for the migration of old-versioned savepoints does not allow to correctly
deserialize those classes changed in different versions.  I think we should create a migration
package for each old-versioned savepoint and put all migrated classes in the savepoint there.
A mapping can be deployed to record those migrated classes in the savepoint so that we can
correctly deserialize them.



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