File : schema.xml (OR schema_extra_types.xml):

I have created this file

web/modules/contrib/search_api_solr/src/Plugin/search_api/data_type/MyCustomTextDataType.php:

It works (if in synonyms_index.txt): 

usa => united states of america

It does NOT work (if in synonyms_query.txt): 

usa => united states of america

My config file (schema_extra_types.xml):

Problem:

Example: SnowBalld converts "sichern" to "sich".

List/content of stopwords_de.txt:

Search-keywords are not more than 64 char.

Error:

Problem:

Find directories / files (incl. 1,2G etc):

du -sh /*/*/* 2>&1 | grep -E "[0-9]{1,}(,[0-9])?G\s+"

Simpler version with more than 10G:

Problem:

  Command ws was not found. Drush was unable to query the database. 
  As a result, many commands are unavailable. 
  Re-run your command with --debug to see relevant log messages.  

Solution?

Problem:

Offenbar ist HunspellStemFilterFactory  nicht mit Apache Solr 9.9 kompatibel.  

Was ist die beste Alternative, damit Apache Solr 9.9 Content in deutscher Sprache optimal indexieren, bearbeiten und analysieren kann?

• solr.SnowballPorterFilterFactory language="German"
• solr.GermanStemFilterFactory
• solr.GermanLightStemFilterFactory
• solr.GermanMinimalStemFilterFactory
• ... ?

Solution?

Problem: