Tzu-Li (Gordon) Tai created FLINK-9574: ------------------------------------------
Summary: Add a dedicated documentation page for state evolution Key: FLINK-9574 URL: https://issues.apache.org/jira/browse/FLINK-9574 Project: Flink Issue Type: Improvement Components: Documentation, State Backends, Checkpointing, Type Serialization System Reporter: Tzu-Li (Gordon) Tai Assignee: Tzu-Li (Gordon) Tai Currently, the only bit of documentation about serializer upgrades / state evolution, is [https://ci.apache.org/projects/flink/flink-docs-release-1.5/dev/stream/state/custom_serialization.html#handling-serializer-upgrades-and-compatibility.], which only explains things at an API level. State evolution over the time has proved to be a rather complex topic that is often overlooked by users. Users would probably benefit from a actual full-grown dedicated page that covers both API, and a some necessary internal details regarding the interplay of the outdated serializer, restore serializer, and new registered serializer of states. I propose to add this documentation as a subpage under Streaming/State & Fault-Tolerance/. -- This message was sent by Atlassian JIRA (v7.6.3#76005)