[
https://issues.apache.org/jira/browse/FLINK-16192?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Stephan Ewen closed FLINK-16192.
--------------------------------
> Remove "Legacy State" and Checkpoint Compatibility with Flink 1.2
> -----------------------------------------------------------------
>
> Key: FLINK-16192
> URL: https://issues.apache.org/jira/browse/FLINK-16192
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Checkpointing
> Reporter: Stephan Ewen
> Assignee: Stephan Ewen
> Priority: Major
> Fix For: 1.11.0
>
>
> Legacy state is state produced by the {{Checkpointed}} interface, back in the
> days before Flink applications were re-scalable. The interface was deprecated
> in Flink 1.2, support dropped in Flink 1.4.
> Removing legacy state leads to a lot of nice cleanups and simplifications in
> the code, especially in the checkpoint metadata handling. This was in fact
> the motivation, extending checkpoints to include "operator coordinators".
> Removing support for this is in theory independent of removing support for
> Flink 1.2, but in practice all the testing savepoints for 1.2 compatibility
> use still this state. Dropping "legacy state" means either some very involved
> reworking of all the 1.2 compatibility tests and re-building the 1.2
> snapshots, or dropping compatibility with Flink 1.2.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
