robdiciuccio commented on issue #13351: URL: https://github.com/apache/superset/issues/13351#issuecomment-790215684
> Should we also consider how we could provide near zero-downtime for migrations which involve DDL operations or is this outside the scope of this SIP? Making this work for all metadata DB types will be difficult, as the pitfalls and tooling are different for each. We could add some guidance around things like setting default values and creating indexes on tables with many rows, but DDL is going to potentially cause downtime on some systems unless you're using a tool like [pt-online-schema-change](https://www.percona.com/doc/percona-toolkit/3.0/pt-online-schema-change.html) (for MySQL). ---------------------------------------------------------------- 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]
