wangbo opened a new issue #4896: URL: https://github.com/apache/incubator-doris/issues/4896
**Background** Doris's current FE metadata design doesn't support rollback after finishing doing major version upgrade. If we rollback code and metadata to a specific version, Doris may lose data. So I came up with a way to make FE support rollback metadata. ** Solution ** The main idea is ```Write both new version and old version metadata to image file when doing checkpoint.``` ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
