[rt-users] Incrementally Upgrading RT

[Thomas Sibley]

On 07/31/2012 11:27 PM, Jenni Wilson wrote:
> Collegues have vague memories that when upgrading from version 2 to 3
> they were able to upgrade in a similar manner, but in order to
> minimise the downtime, they were able to use tools that allowed them
> to do the bulk of the data upgrade during office hours, then take
> down the old version and do an incremental migration to move any data
> that has been added since the bulk data extraction.

There's no way for you to do this going from 3.8 to 4.0 at the moment.

> The insert action on the rt-setup-database script mentions a
> supplementary datafile. Could this action be used to perform the
> incremental upgrade I describe above?

No, that datafile is an "initialdata" file and can't be used to do the
incremental migration you describe above.

(If you're curious what it *can* do, see etc/initialdata or
etc/upgrade/*/content for examples.  There's newly written doc on
initialdata files here:
https://github.com/bestpractical/rt/blob/4.0/document-initialdata/docs/initialdata.pod)