SOLR 8 Support for Drupal 7

I'm not the maintainer of the Drupal 7 module version. But I think that drunken monkey will not find time to work on this larger task.
If you want to use Solr 8, consider a migration to Drupal 9.
Meanwhile you should secure your Solr 7 installation like described at https://solr.apache.org/security.html
As Solr 7.7 is still supported, I think we'll see a security release.

If you want to stay with Drupal 7 you need to apply the Solr hardening manually according to Solr's documentation:
https://solr.apache.org/security.html#apache-solr-affected-by-apache-log...

We may need to revisit this since some site are still using Drupal 7. We were able to make this module work with SOLR 8.

Setup

• Solr version: 8.11.x
• Drupal Core version: 7.103
• Search API version: 7.x-1.29
• Search API Solr version: 7.x-1.16

Plus this patch.

This has been tested on Pantheon and found to be working. I would set to RTBC, but only maintainers can re-open issues.

Thanks, I’ll take a look.

For sure you can commit that patch in the Drupal 7 branch. But the 7.x module is already marked as unsupported, just like Drupal 7 itself.

BTW it is a bit strange that people want to update to newer Solr versions but not to newer Drupal versions ;-)

I agree, people should definitely get off those old Drupal versions. And yes, I won’t provide support for those anymore.
But, as said on Slack, just commiting patches as-is (or fixing one typo, admittedly) should still be fine.
Committed. Thanks again!

Thanks so much! Could you roll a new release for search_api_solr 7.x-1.x to include this addition, when you have a chance?

@greg.1.anderson did you get this patch working on Pantheon Solr servers (Pantheon seems to restrict D7 sites on Solr 8), or on Pantheon hosted D7 site using Solr on other service like OpenSolr, WebSolr, etc?

FTR, the patch committed ships with this config:

# schema.xml
<luceneMatchVersion>${solr.luceneMatchVersion:LUCENE_60}</luceneMatchVersion>

# solrcore.properties
solr.luceneMatchVersion=6.0

You want to remove the line from solrcore.properties and update the other one to LUCENE_80.