Zixuan Rao created FLINK-27796:
----------------------------------
Summary: Document approaches to updating existing instances of
stateful functions
Key: FLINK-27796
URL: https://issues.apache.org/jira/browse/FLINK-27796
Project: Flink
Issue Type: Improvement
Components: Stateful Functions
Affects Versions: statefun-3.2.0
Reporter: Zixuan Rao
As a startup company utilizing stateful functions, we often meet the needs to
modify our applications after it is deployed. Some documentation on the best
practice / methods of upgrading the application would be helpful.
For version 3.2, it seems to me that merely changing an ingress configuration
in `module.yaml` and restart deployment related to statefun would break the
running application. After I recovered the ingress definition to previoius
version, the checkpoint restore was successful. I think that it is necessary to
have a Quick Reference / Guide on how to upgrade, and which configurations
should be considered immutable.
A documentation from the maintainer would obviously be preferred. I could also
write a skeleton that includes some of my tried-and-true approaches, so that
the community can build on top of it by correcting some of the mistakes in my
approach.
Let me know how I can be of help, or if there are other documents I can refer
to.
Thank you.
--
This message was sent by Atlassian Jira
(v8.20.7#820007)
