Reindexing major upgrades

[Rafael Sousa <ra...@gmail.com>]

Hi all,

      I have an solr 6.5 indexes that I should migrate to a 8.6.2 version.
Knowing that the migration of more than one version shift is now blocked in
the 8.6 version, what is the recommended way of making an old 6.5 index to
be ported to a 8.6.2 version ? Having things reindexed from scratch is not
an option, so, is there a way of creating a 8.6.2 index from a pre-existing
6.5 index or something like that?

Thank you so much for your help.

Rafael

Re: Reindexing major upgrades

[Bram Van Dam <br...@intix.eu>]

On 05/10/2020 16:02, Rafael Sousa wrote:
> Having things reindexed from scratch is not
> an option, so, is there a way of creating a 8.6.2 index from a pre-existing
> 6.5 index or something like that?

Sadly there is no such way. If all your fields are stored you might be
able to whip up something which can read all the data from old Solr and
write it to new Solr without having to rereead all your documents. But
that's still pretty painful.

 - Bram